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Packagehl7.fhir.uv.xver-r2.r4.r4
Resource TypeStructureDefinition
IdStructureDefinition-ext-R2-ElementDefinition.pattern.json
FHIR VersionR4

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Narrative

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

Generated Narrative: StructureDefinition ext-R2-ElementDefinition.pattern

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..1Extension(4.0.1)Value must have at least these property values
... url 1..1uri"http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.pattern"
... value[x] 0..1Value must have at least these property values
.... valueBooleanboolean
.... valueIntegerinteger
.... valueDecimaldecimal
.... valueBase64Binarybase64Binary
.... valueInstantinstant
.... valueStringstring
.... valueUriuri
.... valueDatedate
.... valueDateTimedateTime
.... valueTimetime
.... valueCodecode
.... valueOidoid
.... valueIdid
.... valueUnsignedIntunsignedInt
.... valuePositiveIntpositiveInt
.... valueMarkdownmarkdown
.... valueAnnotationAnnotation
.... valueAttachmentAttachment
.... valueIdentifierIdentifier
.... valueCodeableConceptCodeableConcept
.... valueCodingCoding
.... valueQuantityQuantity
.... valueRangeRange
.... valuePeriodPeriod
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueSignatureSignature
.... valueHumanNameHumanName
.... valueAddressAddress
.... valueContactPointContactPoint
.... valueTimingTiming
.... valueReferenceReference(Any)
.... valueMetaMeta

doco Documentation for this format

Source1

{
  "resourceType": "StructureDefinition",
  "id": "ext-R2-ElementDefinition.pattern",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fhir"
    },
    {
      "extension": [
        {
          "url": "packageId",
          "valueId": "hl7.fhir.uv.xver-r2.r4"
        },
        {
          "url": "version",
          "valueString": "0.0.1-snapshot-2"
        }
      ],
      "url": "http://hl7.org/fhir/StructureDefinition/package-source"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 0,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "trial-use",
      "_valueCode": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/1.0/ImplementationGuide/hl7.fhir.uv.xver-r2.r4"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.pattern",
  "version": "0.0.1-snapshot-2",
  "name": "Ext_R2_ElementDefinition_pattern",
  "title": "Cross-version Extension for R2.ElementDefinition.pattern[x] for use in FHIR R4",
  "status": "active",
  "experimental": false,
  "date": "2025-09-01T22:35:47.155134+10:00",
  "publisher": "FHIR Infrastructure",
  "contact": [
    {
      "name": "FHIR Infrastructure",
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fiwg"
        }
      ]
    }
  ],
  "description": "This cross-version extension represents ElementDefinition.pattern[x] from http://hl7.org/fhir/StructureDefinition/ElementDefinition|1.0.2 for use in FHIR R4.",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "001",
          "display": "World"
        }
      ]
    }
  ],
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "ElementDefinition.pattern[x]"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1",
  "derivation": "constraint",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "4.0.1"
      }
    ],
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Value must have at least these property values",
        "definition": "Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example.  The values of elements present in the pattern must match exactly (case-sensitive, accent-sensitive, etc.).",
        "comment": "`ElementDefinition.pattern[x]` maps to R4 `ElementDefinition.pattern[x]`.  So is mapped as RelatedTo.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        },
        "condition": [
          "ele-1"
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"
          }
        ],
        "isModifier": false
      },
      {
        "id": "Extension.id",
        "path": "Extension.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"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.extension",
        "path": "Extension.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 manageable, 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())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
          },
          {
            "key": "ext-1",
            "severity": "error",
            "human": "Must have either extensions or value[x], not both",
            "expression": "extension.exists() != value.exists()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "source": "http://hl7.org/fhir/StructureDefinition/Extension|4.0.1"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "representation": [
          "xmlAttr"
        ],
        "short": "identifies the meaning of the extension",
        "definition": "Source of the definition for the extension code - a logical name or a URL.",
        "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "extension": [
              {
                "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
                "valueUrl": "uri"
              }
            ],
            "code": "http://hl7.org/fhirpath/System.String"
          }
        ],
        "fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.pattern",
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Value must have at least these property values",
        "definition": "Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example.  The values of elements present in the pattern must match exactly (case-sensitive, accent-sensitive, etc.).",
        "comment": "`ElementDefinition.pattern[x]` maps to R4 `ElementDefinition.pattern[x]`.  So is mapped as RelatedTo.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "boolean"
          },
          {
            "code": "integer"
          },
          {
            "code": "decimal"
          },
          {
            "code": "base64Binary"
          },
          {
            "code": "instant"
          },
          {
            "code": "string"
          },
          {
            "code": "uri"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "time"
          },
          {
            "code": "code"
          },
          {
            "code": "oid"
          },
          {
            "code": "id"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "markdown"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "Identifier"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "code": "Coding"
          },
          {
            "code": "Quantity"
          },
          {
            "code": "Range"
          },
          {
            "code": "Period"
          },
          {
            "code": "Ratio"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "HumanName"
          },
          {
            "code": "Address"
          },
          {
            "code": "ContactPoint"
          },
          {
            "code": "Timing"
          },
          {
            "code": "Reference"
          },
          {
            "code": "Meta"
          }
        ],
        "constraint": [
          {
            "key": "ele-1",
            "severity": "error",
            "human": "All FHIR elements must have a @value or children",
            "expression": "hasValue() or (children().count() > id.count())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element|4.0.1"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "N/A"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Value must have at least these property values",
        "definition": "Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example.  The values of elements present in the pattern must match exactly (case-sensitive, accent-sensitive, etc.).",
        "comment": "`ElementDefinition.pattern[x]` maps to R4 `ElementDefinition.pattern[x]`.  So is mapped as RelatedTo.",
        "min": 0,
        "max": "1",
        "base": {
          "path": "Extension",
          "min": 0,
          "max": "*"
        }
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "min": 1,
        "max": "1",
        "base": {
          "path": "Extension.url",
          "min": 1,
          "max": "1"
        },
        "fixedUri": "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.pattern"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Value must have at least these property values",
        "definition": "Specifies a value that the value in the instance SHALL follow - that is, any value in the pattern must be found in the instance. Other additional values may be found too. This is effectively constraint by example.  The values of elements present in the pattern must match exactly (case-sensitive, accent-sensitive, etc.).",
        "comment": "`ElementDefinition.pattern[x]` maps to R4 `ElementDefinition.pattern[x]`.  So is mapped as RelatedTo.",
        "base": {
          "path": "Extension.value[x]",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "boolean"
          },
          {
            "code": "integer"
          },
          {
            "code": "decimal"
          },
          {
            "code": "base64Binary"
          },
          {
            "code": "instant"
          },
          {
            "code": "string"
          },
          {
            "code": "uri"
          },
          {
            "code": "date"
          },
          {
            "code": "dateTime"
          },
          {
            "code": "time"
          },
          {
            "code": "code"
          },
          {
            "code": "oid"
          },
          {
            "code": "id"
          },
          {
            "code": "unsignedInt"
          },
          {
            "code": "positiveInt"
          },
          {
            "code": "markdown"
          },
          {
            "code": "Annotation"
          },
          {
            "code": "Attachment"
          },
          {
            "code": "Identifier"
          },
          {
            "code": "CodeableConcept"
          },
          {
            "code": "Coding"
          },
          {
            "code": "Quantity"
          },
          {
            "code": "Range"
          },
          {
            "code": "Period"
          },
          {
            "code": "Ratio"
          },
          {
            "code": "SampledData"
          },
          {
            "code": "Signature"
          },
          {
            "code": "HumanName"
          },
          {
            "code": "Address"
          },
          {
            "code": "ContactPoint"
          },
          {
            "code": "Timing"
          },
          {
            "code": "Reference"
          },
          {
            "code": "Meta"
          }
        ]
      }
    ]
  }
}