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FHIR IG Statistics: StructureDefinition/SymptomLogicalModel

Packagehl7.fhir.uv.symptoms
TypeStructureDefinition
IdSymptomLogicalModel
FHIR VersionR5
Sourcehttp://hl7.org/fhir/uv/symptoms/https://build.fhir.org/ig/HL7/fhir-symptoms-ig/StructureDefinition-SymptomLogicalModel.html
URLhttp://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel
Version0.1.0
Statusdraft
Date2025-07-17T01:25:31+00:00
NameSymptomLogicalModel
TitleSymptom Logical Model
Realmuv
Authorityhl7
DescriptionDetails about the Symptom.
Typehttp://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel
Kindlogical

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Resources that this resource uses

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Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: StructureDefinition SymptomLogicalModel

NameFlagsCard.TypeDescription & Constraintsdoco
.. SymptomLogicalModel 0..*Element
Elements defined in Ancestors:@id, extension
Symptom Logical Model
... identifier 1..1string
... symptomCode 1..1CodeableConceptCoded description of symptom
... affectedPatient 1..1Patient
... recorder[x] 1..1
.... recorderPatientPatient
.... recorderRelatedPersonRelatedPerson
.... recorderPractitionerRolePractitionerRole
.... recorderOrganizationOrganization
... symptomDescription 0..*AnnotationTextual description of symptom as provided by care team member
... keyFeatures 0..*BackboneElementKey Features
.... location 0..*BodyStructureWhere the patient feels the symptom in the body.
.... quality 0..1BackboneElementThe patient's internal perception of the symptom.
..... note 0..1AnnotationFree text related to the observation
..... code 1..1codeCode for the specific scale or assessment (e.g., pain, depression, or disability scale).
..... value[x] 1..1Code or quantity for the scale or assessment
...... valueCodeableConceptCodeableConcept
...... valueStringstring
.... severity 0..1BackboneElementThe intensity with which the patient experiences the symptom.
..... note 0..1AnnotationFree text related to the observation
..... scaleCode 1..1codeCode for the specific scale or assessment (e.g., pain, depression, or disability scale).
..... value[x] 1..1Code or quantity for the scale or assessment
...... valueCodeableConceptCodeableConcept
...... valueStringstring
.... functionalImpact 0..1BackboneElementHow the symptom affects the patient's daily activities.
..... note 0..1AnnotationFree text related to the observation
..... affectiveGrade 0..1CodeableConceptEmotional or mental impact of a symptom
..... scaleCode 1..1codeCode for the specific scale or assessment (e.g., pain, depression, or disability scale).
..... value[x] 1..1Code or quantity for the scale or assessment
...... valueCodeableConceptCodeableConcept
...... valueStringstring
.... surroundingEvents 0..1BackboneElementWhat was occurring at the time of symptom onset.
..... triggers 0..*BackboneElementActions or environments that initiate the symptom.
...... triggerCode 1..1CodeableConceptCode describing the type of trigger
...... value[x] 1..1Code or string describing the specific event.
....... valueCodeableConceptCodeableConcept
....... valueStringstring
...... note 0..1AnnotationFree text related to the observation
..... exacerbatingFactors 0..*BackboneElement
...... factor 0..*CodeableReference()Reference to the factor
...... relatedMedication 0..*Medication
...... note 0..1AnnotationInformation given about actions, conditions, events, or other factors
..... alleviatingFactors 0..*BackboneElement
...... factor 0..*CodeableReference()Reference to the factor
...... note 0..1AnnotationInformation given about actions, conditions, events, or other factors
...... relatedMedication 0..*Medication
..... otherEvents 0..*CodeableConceptPatient-reported actions that were occuring at time of symptom onset
... timing 0..1BackboneElement
.... speed 0..1CodeableConceptThe rate at which a physiological condition became apparent.
.... onset[x] 0..1Clinically relevant time or period for the symptom since first occurance.
..... onsetDateTimedateTime
..... onsetPeriodPeriod
.... note 0..1AnnotationFree text related to the observation
.... duration[x] 0..1The length of time the symptom persists in this instance of occurance.
..... durationDurationDuration
..... durationCodeableConceptCodeableConcept
.... frequency 0..1QuantityHow often the patient experiences the symptom.
.... timePattern 0..1CodeableConceptThe pattern of experiencing the symptom
... clinicalCourse 0..1CodeableConceptCharacter of symptom onset.
... trend 0..1CodeableConceptIntensity of symptom over time
... metadata 1..1BackboneElement
.... documentationDate 1..1dateTimeDate of recorded visit
.... issued 1..1dateTimeDate/time when the current version was made available.

doco Documentation for this format

Source

{
  "resourceType": "StructureDefinition",
  "id": "SymptomLogicalModel",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "cic"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/uv/symptoms/ImplementationGuide/hl7.fhir.uv.symptoms"
          }
        ]
      }
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "draft",
      "_valueCode": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/uv/symptoms/ImplementationGuide/hl7.fhir.uv.symptoms"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel",
  "version": "0.1.0",
  "name": "SymptomLogicalModel",
  "title": "Symptom Logical Model",
  "status": "draft",
  "date": "2025-07-17T01:25:31+00:00",
  "publisher": "HL7 International / Clinical Interoperability Council",
  "contact": [
    {
      "name": "HL7 International / Clinical Interoperability Council",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/cic"
        }
      ]
    }
  ],
  "description": "Details about the Symptom.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "fhirVersion": "5.0.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "logical",
  "abstract": false,
  "type": "http://hl7.org/fhir/uv/symptoms/StructureDefinition/SymptomLogicalModel",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Element",
  "derivation": "specialization",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "5.0.0"
      }
    ],
    "element": [
      {
        "id": "SymptomLogicalModel",
        "path": "SymptomLogicalModel",
        "short": "Symptom Logical Model",
        "definition": "Details about the Symptom.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element",
          "min": 0,
          "max": "*"
        },
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ],
        "isModifier": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.id",
        "path": "SymptomLogicalModel.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "string"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.extension",
        "path": "SymptomLogicalModel.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.identifier",
        "path": "SymptomLogicalModel.identifier",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.identifier",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.symptomCode",
        "path": "SymptomLogicalModel.symptomCode",
        "short": "Coded description of symptom",
        "definition": "Coded description of symptom",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.symptomCode",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.affectedPatient",
        "path": "SymptomLogicalModel.affectedPatient",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.affectedPatient",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "Patient"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.recorder[x]",
        "path": "SymptomLogicalModel.recorder[x]",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.recorder[x]",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "Patient"
          },
          {
            "code": "RelatedPerson"
          },
          {
            "code": "PractitionerRole"
          },
          {
            "code": "Organization"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.symptomDescription",
        "path": "SymptomLogicalModel.symptomDescription",
        "short": "Textual description of symptom as provided by care team member",
        "definition": "Textual description of symptom as provided by care team member",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.symptomDescription",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures",
        "path": "SymptomLogicalModel.keyFeatures",
        "short": "Key Features",
        "definition": "The key features of the symptom",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.id",
        "path": "SymptomLogicalModel.keyFeatures.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.extension",
        "path": "SymptomLogicalModel.keyFeatures.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.location",
        "path": "SymptomLogicalModel.keyFeatures.location",
        "short": "Where the patient feels the symptom in the body.",
        "definition": "Where the patient feels the symptom in the body.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.location",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "BodyStructure"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality",
        "path": "SymptomLogicalModel.keyFeatures.quality",
        "short": "The patient's internal perception of the symptom.",
        "definition": "The patient's internal perception of the symptom.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.quality",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.id",
        "path": "SymptomLogicalModel.keyFeatures.quality.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.extension",
        "path": "SymptomLogicalModel.keyFeatures.quality.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.quality.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.note",
        "path": "SymptomLogicalModel.keyFeatures.quality.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.quality.note",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.code",
        "path": "SymptomLogicalModel.keyFeatures.quality.code",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.quality.code",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.quality.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.quality.value[x]",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity",
        "path": "SymptomLogicalModel.keyFeatures.severity",
        "short": "The intensity with which the patient experiences the symptom.",
        "definition": "The intensity with which the patient experiences the symptom.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.severity",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.id",
        "path": "SymptomLogicalModel.keyFeatures.severity.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.extension",
        "path": "SymptomLogicalModel.keyFeatures.severity.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.severity.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.note",
        "path": "SymptomLogicalModel.keyFeatures.severity.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.severity.note",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.scaleCode",
        "path": "SymptomLogicalModel.keyFeatures.severity.scaleCode",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.severity.scaleCode",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.severity.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.severity.value[x]",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact",
        "short": "How the symptom affects the patient's daily activities.",
        "definition": "How the symptom affects the patient's daily activities.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.functionalImpact",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.id",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.extension",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.note",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.functionalImpact.note",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.affectiveGrade",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.affectiveGrade",
        "short": "Emotional or mental impact of a symptom",
        "definition": "Emotional or mental impact of a symptom",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.functionalImpact.affectiveGrade",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.functionalImpact.value[x]",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents",
        "short": "What was occurring at the time of symptom onset.",
        "definition": "What was occurring at the time of symptom onset.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.id",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.extension",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers",
        "short": "Actions or environments that initiate the symptom.",
        "definition": "Actions or environments that initiate the symptom.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers",
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        "type": [
          {
            "code": "BackboneElement"
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        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.id",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
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        "min": 0,
        "max": "1",
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        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
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        "condition": [
          "ele-1"
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          {
            "identity": "rim",
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      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.extension",
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        "slicing": {
          "discriminator": [
            {
              "type": "value",
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          ],
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          "rules": "open"
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        "short": "Additional content defined by implementations",
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        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
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        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
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        "type": [
          {
            "code": "Extension"
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        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
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          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
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        ],
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          {
            "identity": "rim",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.modifierExtension",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
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        "min": 0,
        "max": "*",
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        "type": [
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        ],
        "constraint": [
          {
            "key": "ele-1",
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            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
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          {
            "key": "ext-1",
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            "human": "Must have either extensions or value[x], not both",
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        "mapping": [
          {
            "identity": "rim",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.triggerCode",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.triggerCode",
        "short": "Code describing the type of trigger",
        "definition": "Code describing the type of trigger",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.triggerCode",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.value[x]",
        "short": "Code or string describing the specific event.",
        "definition": "Code or string describing the specific event.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.value[x]",
          "min": 1,
          "max": "1"
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        "type": [
          {
            "code": "CodeableConcept"
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          {
            "code": "string"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.note",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.note",
          "min": 0,
          "max": "1"
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        "type": [
          {
            "code": "Annotation"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors",
        "definition": "Patient reported actions, conditions, events, physical objects or other factors that increase or worsen symptoms or the condition of interest (pain, nausea, dyspnea, dizziness, or other).",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors",
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          "max": "*"
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        "type": [
          {
            "code": "BackboneElement"
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        ],
        "constraint": [
          {
            "key": "ele-1",
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            "human": "All FHIR elements must have a @value or children",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.id",
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          "xmlAttr"
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        "short": "Unique id for inter-element referencing",
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        "min": 0,
        "max": "1",
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        "type": [
          {
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                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
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        ],
        "condition": [
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        "isModifier": false,
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          {
            "identity": "rim",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.extension",
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          "discriminator": [
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        "min": 0,
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        "type": [
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        "constraint": [
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        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
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        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
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          "max": "*"
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        "type": [
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        "constraint": [
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        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
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        "mapping": [
          {
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      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.factor",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.factor",
        "short": "Reference to the factor",
        "definition": "Reference to the factor",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.factor",
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        "type": [
          {
            "code": "CodeableReference"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.relatedMedication",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.relatedMedication",
        "min": 0,
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        "type": [
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      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.note",
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        "definition": "Information given about actions, conditions, events, or other factors",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.note",
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        "type": [
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        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors",
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        "min": 0,
        "max": "*",
        "base": {
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        "constraint": [
          {
            "key": "ele-1",
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        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.id",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.id",
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        "short": "Unique id for inter-element referencing",
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        "type": [
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        "condition": [
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          {
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.extension",
        "slicing": {
          "discriminator": [
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          ],
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        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
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        "min": 0,
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        "base": {
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        "type": [
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        ],
        "constraint": [
          {
            "key": "ele-1",
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          {
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        "isModifier": false,
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      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.modifierExtension",
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        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
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        "min": 0,
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        "type": [
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        "constraint": [
          {
            "key": "ele-1",
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          {
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        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
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        "mapping": [
          {
            "identity": "rim",
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor",
        "short": "Reference to the factor",
        "definition": "Reference to the factor",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "CodeableReference"
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        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note",
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        "definition": "Information given about actions, conditions, events, or other factors",
        "min": 0,
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        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Medication"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents",
        "short": "Patient-reported actions that were occuring at time of symptom onset",
        "definition": "Patient-reported actions that were occuring at time of symptom onset",
        "min": 0,
        "max": "*",
        "base": {
          "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing",
        "path": "SymptomLogicalModel.timing",
        "definition": "Timing includes the actual or estimated date/time of onset, character of onset, how often the patient experiences the symptom, and the length of time the symptom persists.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.id",
        "path": "SymptomLogicalModel.timing.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.extension",
        "path": "SymptomLogicalModel.timing.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.modifierExtension",
        "path": "SymptomLogicalModel.timing.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.speed",
        "path": "SymptomLogicalModel.timing.speed",
        "short": "The rate at which a physiological condition became apparent.",
        "definition": "The rate at which a physiological condition became apparent.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.speed",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.onset[x]",
        "path": "SymptomLogicalModel.timing.onset[x]",
        "short": "Clinically relevant time or period for the symptom since first occurance.",
        "definition": "Clinically relevant time or period for the symptom since first occurance.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.onset[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "dateTime"
          },
          {
            "code": "Period"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.note",
        "path": "SymptomLogicalModel.timing.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.note",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.duration[x]",
        "path": "SymptomLogicalModel.timing.duration[x]",
        "short": "The length of time the symptom persists in this instance of occurance.",
        "definition": "The length of time the symptom persists in this instance of occurance.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.duration[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Duration"
          },
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.frequency",
        "path": "SymptomLogicalModel.timing.frequency",
        "short": "How often the patient experiences the symptom.",
        "definition": "How often the patient experiences the symptom.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.frequency",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.timePattern",
        "path": "SymptomLogicalModel.timing.timePattern",
        "short": "The pattern of experiencing the symptom",
        "definition": "Continuous, intermittent, paroxysmal, or cyclic",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.timing.timePattern",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.clinicalCourse",
        "path": "SymptomLogicalModel.clinicalCourse",
        "short": "Character of symptom onset.",
        "definition": "Term to represent both the course and onset of a disease. Many conditions with an acute (sudden) onset also have an acute (short duration) course.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.clinicalCourse",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.trend",
        "path": "SymptomLogicalModel.trend",
        "short": "Intensity of symptom over time",
        "definition": "Whether a condition is improving, worsening, stable, or resolved.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.trend",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata",
        "path": "SymptomLogicalModel.metadata",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.metadata",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "BackboneElement"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.id",
        "path": "SymptomLogicalModel.metadata.id",
        "representation": [
          "xmlAttr"
        ],
        "short": "Unique id for inter-element referencing",
        "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Element.id",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "id"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "condition": [
          "ele-1"
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.extension",
        "path": "SymptomLogicalModel.metadata.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "description": "Extensions are always sliced by (at least) url",
          "rules": "open"
        },
        "short": "Additional content defined by implementations",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "alias": [
          "extensions",
          "user content"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "Element.extension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.modifierExtension",
        "path": "SymptomLogicalModel.metadata.modifierExtension",
        "short": "Extensions that cannot be ignored even if unrecognized",
        "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
        "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
        "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).",
        "alias": [
          "extensions",
          "user content",
          "modifiers"
        ],
        "min": 0,
        "max": "*",
        "base": {
          "path": "BackboneElement.modifierExtension",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Extension"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension"
          }
        ],
        "isModifier": true,
        "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
        "isSummary": true,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.documentationDate",
        "path": "SymptomLogicalModel.metadata.documentationDate",
        "short": "Date of recorded visit",
        "definition": "The date the symptom was entered, edited, or deleted.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.metadata.documentationDate",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.issued",
        "path": "SymptomLogicalModel.metadata.issued",
        "short": "Date/time when the current version was made available.",
        "definition": "Date/time when the current version was made available.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "SymptomLogicalModel.metadata.issued",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "dateTime"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "SymptomLogicalModel",
        "path": "SymptomLogicalModel",
        "short": "Symptom Logical Model",
        "definition": "Details about the Symptom."
      },
      {
        "id": "SymptomLogicalModel.identifier",
        "path": "SymptomLogicalModel.identifier",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.symptomCode",
        "path": "SymptomLogicalModel.symptomCode",
        "short": "Coded description of symptom",
        "definition": "Coded description of symptom",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.affectedPatient",
        "path": "SymptomLogicalModel.affectedPatient",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Patient"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.recorder[x]",
        "path": "SymptomLogicalModel.recorder[x]",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "Patient"
          },
          {
            "code": "RelatedPerson"
          },
          {
            "code": "PractitionerRole"
          },
          {
            "code": "Organization"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.symptomDescription",
        "path": "SymptomLogicalModel.symptomDescription",
        "short": "Textual description of symptom as provided by care team member",
        "definition": "Textual description of symptom as provided by care team member",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures",
        "path": "SymptomLogicalModel.keyFeatures",
        "short": "Key Features",
        "definition": "The key features of the symptom",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.location",
        "path": "SymptomLogicalModel.keyFeatures.location",
        "short": "Where the patient feels the symptom in the body.",
        "definition": "Where the patient feels the symptom in the body.",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BodyStructure"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality",
        "path": "SymptomLogicalModel.keyFeatures.quality",
        "short": "The patient's internal perception of the symptom.",
        "definition": "The patient's internal perception of the symptom.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.note",
        "path": "SymptomLogicalModel.keyFeatures.quality.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.code",
        "path": "SymptomLogicalModel.keyFeatures.quality.code",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.quality.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.quality.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity",
        "path": "SymptomLogicalModel.keyFeatures.severity",
        "short": "The intensity with which the patient experiences the symptom.",
        "definition": "The intensity with which the patient experiences the symptom.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.note",
        "path": "SymptomLogicalModel.keyFeatures.severity.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.scaleCode",
        "path": "SymptomLogicalModel.keyFeatures.severity.scaleCode",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.severity.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.severity.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact",
        "short": "How the symptom affects the patient's daily activities.",
        "definition": "How the symptom affects the patient's daily activities.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.note",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.affectiveGrade",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.affectiveGrade",
        "short": "Emotional or mental impact of a symptom",
        "definition": "Emotional or mental impact of a symptom",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.scaleCode",
        "short": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "definition": "Code for the specific scale or assessment (e.g., pain, depression, or disability scale).",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "code"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.functionalImpact.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.functionalImpact.value[x]",
        "short": "Code or quantity for the scale or assessment",
        "definition": "Code or quantity for the scale or assessment",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents",
        "short": "What was occurring at the time of symptom onset.",
        "definition": "What was occurring at the time of symptom onset.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers",
        "short": "Actions or environments that initiate the symptom.",
        "definition": "Actions or environments that initiate the symptom.",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.triggerCode",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.triggerCode",
        "short": "Code describing the type of trigger",
        "definition": "Code describing the type of trigger",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.value[x]",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.value[x]",
        "short": "Code or string describing the specific event.",
        "definition": "Code or string describing the specific event.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          },
          {
            "code": "string"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.note",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.triggers.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors",
        "definition": "Patient reported actions, conditions, events, physical objects or other factors that increase or worsen symptoms or the condition of interest (pain, nausea, dyspnea, dizziness, or other).",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.factor",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.factor",
        "short": "Reference to the factor",
        "definition": "Reference to the factor",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "CodeableReference"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.relatedMedication",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.relatedMedication",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Medication"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.note",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.exacerbatingFactors.note",
        "short": "Information given about actions, conditions, events, or other factors",
        "definition": "Information given about actions, conditions, events, or other factors",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors",
        "definition": "Patient-reported actions, conditions, events, or other factors that decrease the symptoms or condition",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.factor",
        "short": "Reference to the factor",
        "definition": "Reference to the factor",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "CodeableReference"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.note",
        "short": "Information given about actions, conditions, events, or other factors",
        "definition": "Information given about actions, conditions, events, or other factors",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.alleviatingFactors.relatedMedication",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Medication"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents",
        "path": "SymptomLogicalModel.keyFeatures.surroundingEvents.otherEvents",
        "short": "Patient-reported actions that were occuring at time of symptom onset",
        "definition": "Patient-reported actions that were occuring at time of symptom onset",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing",
        "path": "SymptomLogicalModel.timing",
        "definition": "Timing includes the actual or estimated date/time of onset, character of onset, how often the patient experiences the symptom, and the length of time the symptom persists.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.speed",
        "path": "SymptomLogicalModel.timing.speed",
        "short": "The rate at which a physiological condition became apparent.",
        "definition": "The rate at which a physiological condition became apparent.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.onset[x]",
        "path": "SymptomLogicalModel.timing.onset[x]",
        "short": "Clinically relevant time or period for the symptom since first occurance.",
        "definition": "Clinically relevant time or period for the symptom since first occurance.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          },
          {
            "code": "Period"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.note",
        "path": "SymptomLogicalModel.timing.note",
        "short": "Free text related to the observation",
        "definition": "Free text related to the observation",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Annotation"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.duration[x]",
        "path": "SymptomLogicalModel.timing.duration[x]",
        "short": "The length of time the symptom persists in this instance of occurance.",
        "definition": "The length of time the symptom persists in this instance of occurance.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Duration"
          },
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.frequency",
        "path": "SymptomLogicalModel.timing.frequency",
        "short": "How often the patient experiences the symptom.",
        "definition": "How often the patient experiences the symptom.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Quantity"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.timing.timePattern",
        "path": "SymptomLogicalModel.timing.timePattern",
        "short": "The pattern of experiencing the symptom",
        "definition": "Continuous, intermittent, paroxysmal, or cyclic",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.clinicalCourse",
        "path": "SymptomLogicalModel.clinicalCourse",
        "short": "Character of symptom onset.",
        "definition": "Term to represent both the course and onset of a disease. Many conditions with an acute (sudden) onset also have an acute (short duration) course.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.trend",
        "path": "SymptomLogicalModel.trend",
        "short": "Intensity of symptom over time",
        "definition": "Whether a condition is improving, worsening, stable, or resolved.",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata",
        "path": "SymptomLogicalModel.metadata",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.documentationDate",
        "path": "SymptomLogicalModel.metadata.documentationDate",
        "short": "Date of recorded visit",
        "definition": "The date the symptom was entered, edited, or deleted.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      },
      {
        "id": "SymptomLogicalModel.metadata.issued",
        "path": "SymptomLogicalModel.metadata.issued",
        "short": "Date/time when the current version was made available.",
        "definition": "Date/time when the current version was made available.",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "dateTime"
          }
        ]
      }
    ]
  }
}