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FHIR IG Statistics: StructureDefinition/DiseaseExtent

Packagehl7.eu.fhir.idea4rc
TypeStructureDefinition
IdDiseaseExtent
FHIR VersionR4
Sourcehttp://hl7.eu/fhir/ig/idea4rc/https://build.fhir.org/ig/hl7-eu/idea4rc/StructureDefinition-DiseaseExtent.html
URLhttp://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent
Version0.1.0
Statusdraft
Date2025-07-22T14:45:28+00:00
NameDiseaseExtentI4RC
TitleDisease Extent
Realmeu
Authorityhl7
DescriptionDisease Extent Maturity Level: 0 Draft
Typehttp://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent
Kindlogical

Resources that use this resource

ConceptMap
diseaseExtent2FHIRDiseaseExtent Model to this guide Map

Resources that this resource uses

StructureDefinition
EpisodeEventEpisode Event

Narrative

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

Generated Narrative: StructureDefinition DiseaseExtent

NameFlagsCard.TypeDescription & Constraintsdoco
.. DiseaseExtent 0..*BaseDisease Extent
... episodeEvent O1..*EpisodeEventEpisode Event Reference (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... localised O1..*booleanLocalised (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... numberOfTumorNodules O0..*integerNumber of tumor nodules (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... locoRegional O1..*booleanLoco-regional (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... isTransitMetastasisWithClinicalConfirmation O1..*booleanIs Transit metastasis with clinical confirmation (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... isMultifocalTumor O1..*booleanIs Multifocal tumor (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... regionalNodalMetastases O1..*booleanRegional nodal metastases (M)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
... sites O0..*BackboneElementsites (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... softTissue O0..*booleanSoft tissue (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... distantLymphNode O0..*booleandistant lymph node (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... lung O0..*booleanlung (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... metastasisatbone O0..*booleanmetastasisAtBone (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... liver O0..*booleanliver (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... pleura O0..*booleanpleura (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... peritoneum O0..*booleanperitoneum (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... brain O0..*booleanbrain (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma
.... otherViscera O0..*booleanother viscera (R)
ObligationsActor
SHALL:handleHead and Neck
SHALL:handleSarcoma

doco Documentation for this format

Source

{
  "resourceType": "StructureDefinition",
  "id": "DiseaseExtent",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "url": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent",
  "version": "0.1.0",
  "name": "DiseaseExtentI4RC",
  "title": "Disease Extent",
  "status": "draft",
  "date": "2025-07-22T14:45:28+00:00",
  "publisher": "IDEA4RC Project",
  "contact": [
    {
      "name": "IDEA4RC Project",
      "telecom": [
        {
          "system": "url",
          "value": "https://www.idea4rc.eu/"
        }
      ]
    },
    {
      "name": "IDEA4RC Project",
      "telecom": [
        {
          "system": "url",
          "value": "https://www.idea4rc.eu/"
        }
      ]
    }
  ],
  "description": "Disease Extent\nMaturity Level: 0 Draft",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
          "code": "150",
          "display": "Europe"
        }
      ]
    }
  ],
  "fhirVersion": "4.0.1",
  "kind": "logical",
  "abstract": false,
  "type": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Base",
  "derivation": "specialization",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "4.0.1"
      }
    ],
    "element": [
      {
        "id": "DiseaseExtent",
        "path": "DiseaseExtent",
        "short": "Disease Extent",
        "definition": "Disease Extent\nMaturity Level: 0 Draft",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Base",
          "min": 0,
          "max": "*"
        },
        "isModifier": false
      },
      {
        "id": "DiseaseExtent.episodeEvent",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.episodeEvent",
        "short": "Episode Event Reference (M)",
        "definition": "EpisodeEvent element containing the data regarding the patient's cancer",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.episodeEvent",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/EpisodeEvent"
          }
        ]
      },
      {
        "id": "DiseaseExtent.localised",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.localised",
        "short": "Localised (M)",
        "definition": "Describes if there disease is local \nLocalised and Number of tumor modules are variables that work together",
        "comment": "Confined disease - 32942",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.localised",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.numberOfTumorNodules",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.numberOfTumorNodules",
        "short": "Number of tumor nodules (R)",
        "definition": "Indicates the number of tumor nodules in the case the disease is localised \nLocalised and Number of tumor modules are variables that work together",
        "comment": "Number of tumor nodules - 4228659",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.numberOfTumorNodules",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "integer"
          }
        ]
      },
      {
        "id": "DiseaseExtent.locoRegional",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.locoRegional",
        "short": "Loco-regional (M)",
        "definition": "Indicates if the disease is in a loco-regional extent",
        "comment": "\nInvasive Disease - 32943",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.locoRegional",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.isTransitMetastasisWithClinicalConfirmation",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.isTransitMetastasisWithClinicalConfirmation",
        "short": "Is Transit metastasis with clinical confirmation (M)",
        "definition": "Indicates spread of cancer cells through lymphatic vessels, where they lodge and grow in tissues located between the primary tumor and the nearest regional lymph nodes.",
        "comment": "Transit Metastasis with Clinical Confirmation - 36769249",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.isTransitMetastasisWithClinicalConfirmation",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.isMultifocalTumor",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.isMultifocalTumor",
        "short": "Is Multifocal tumor (M)",
        "definition": "Presence of multiple distinct tumor foci (or nodules) within the same organ or tissue, originating from the same primary tumor type. These foci may arise through independent tumorigenesis (multiple primary lesions) or local spread of the same cancer.",
        "comment": "Multifocal Tumor - 36769933",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.isMultifocalTumor",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.regionalNodalMetastases",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.regionalNodalMetastases",
        "short": "Regional nodal metastases (M)",
        "definition": "Describes if regional nodal mestastases happened",
        "comment": "Regional spread to lymph node - 36769269",
        "min": 1,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.regionalNodalMetastases",
          "min": 1,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites",
        "short": "sites (R)",
        "definition": "Describes if site of metastasic disease  is soft tissue",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites",
          "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())",
            "xpath": "@value|f:*|h:div",
            "source": "http://hl7.org/fhir/StructureDefinition/Element"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.id",
        "path": "DiseaseExtent.sites.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": "DiseaseExtent.sites.extension",
        "path": "DiseaseExtent.sites.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"
          },
          {
            "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"
          }
        ],
        "isModifier": false,
        "isSummary": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.modifierExtension",
        "path": "DiseaseExtent.sites.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 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. 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/R4/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())",
            "xpath": "@value|f:*|h:div",
            "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()",
            "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), \"value\")])",
            "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": "DiseaseExtent.sites.softTissue",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.softTissue",
        "short": "Soft tissue (R)",
        "definition": "Describes if site of metastasic disease  is soft tissue",
        "comment": "Metastasis to soft tissues - 35225724",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.softTissue",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.distantLymphNode",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.distantLymphNode",
        "short": "distant lymph node (R)",
        "definition": "Describes if site of metastasic disease  is dystan lymph node",
        "comment": "Distant spread to lymph node - 36769243",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.distantLymphNode",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.lung",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.lung",
        "short": "lung (R)",
        "definition": "Describes if site of metastasic disease  is lung",
        "comment": "Metastasis to lung - 36770283",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.lung",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.metastasisatbone",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.metastasisatbone",
        "short": "metastasisAtBone (R)",
        "definition": "Describes if site of metastasic disease  is bone",
        "comment": "Metastasis to bone - 36769301",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.metastasisatbone",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.liver",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.liver",
        "short": "liver (R)",
        "definition": "Describes if site of metastasic disease  is liver",
        "comment": "Metastasis to liver - 36770544",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.liver",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.pleura",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.pleura",
        "short": "pleura (R)",
        "definition": "Describes if site of metastasic disease  is pleura",
        "comment": "Metastasis to pleura - 35226258",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.pleura",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.peritoneum",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.peritoneum",
        "short": "peritoneum (R)",
        "definition": "Describes if site of metastasic disease  is peritoneum",
        "comment": "Metastasis to peritoneum - 35226253",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.peritoneum",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.brain",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.brain",
        "short": "brain (R)",
        "definition": "Describes if site of metastasic disease  is brain",
        "comment": "Metastasis to brain - 36768862",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.brain",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.otherViscera",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              },
              {
                "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-source",
                "valueUri": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/DiseaseExtent|0.1.0"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.otherViscera",
        "short": "other viscera (R)",
        "definition": "Describes if site of metastasic disease  is other viscera \nUse the generic metastasis code or a metastasis subsumed in it, 36769180",
        "comment": "Metastasis - 36769180",
        "min": 0,
        "max": "*",
        "base": {
          "path": "DiseaseExtent.sites.otherViscera",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "boolean"
          }
        ]
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "DiseaseExtent",
        "path": "DiseaseExtent",
        "short": "Disease Extent",
        "definition": "Disease Extent\nMaturity Level: 0 Draft"
      },
      {
        "id": "DiseaseExtent.episodeEvent",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.episodeEvent",
        "short": "Episode Event Reference (M)",
        "definition": "EpisodeEvent element containing the data regarding the patient's cancer ",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "http://hl7.eu/fhir/ig/idea4rc/StructureDefinition/EpisodeEvent"
          }
        ]
      },
      {
        "id": "DiseaseExtent.localised",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.localised",
        "short": "Localised (M)",
        "definition": "Describes if there disease is local \nLocalised and Number of tumor modules are variables that work together",
        "comment": "Confined disease - 32942",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.numberOfTumorNodules",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.numberOfTumorNodules",
        "short": "Number of tumor nodules (R)",
        "definition": "Indicates the number of tumor nodules in the case the disease is localised \nLocalised and Number of tumor modules are variables that work together",
        "comment": "Number of tumor nodules - 4228659",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "integer"
          }
        ]
      },
      {
        "id": "DiseaseExtent.locoRegional",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.locoRegional",
        "short": "Loco-regional (M)",
        "definition": "Indicates if the disease is in a loco-regional extent ",
        "comment": "\nInvasive Disease - 32943\n\n",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.isTransitMetastasisWithClinicalConfirmation",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.isTransitMetastasisWithClinicalConfirmation",
        "short": "Is Transit metastasis with clinical confirmation (M)",
        "definition": "Indicates spread of cancer cells through lymphatic vessels, where they lodge and grow in tissues located between the primary tumor and the nearest regional lymph nodes. ",
        "comment": "Transit Metastasis with Clinical Confirmation - 36769249\n",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.isMultifocalTumor",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.isMultifocalTumor",
        "short": "Is Multifocal tumor (M)",
        "definition": "Presence of multiple distinct tumor foci (or nodules) within the same organ or tissue, originating from the same primary tumor type. These foci may arise through independent tumorigenesis (multiple primary lesions) or local spread of the same cancer. ",
        "comment": "Multifocal Tumor - 36769933\n",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.regionalNodalMetastases",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.regionalNodalMetastases",
        "short": "Regional nodal metastases (M)",
        "definition": "Describes if regional nodal mestastases happened ",
        "comment": "Regional spread to lymph node - 36769269",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites",
        "short": "sites (R)",
        "definition": "Describes if site of metastasic disease  is soft tissue",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "BackboneElement"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.softTissue",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.softTissue",
        "short": "Soft tissue (R)",
        "definition": "Describes if site of metastasic disease  is soft tissue ",
        "comment": "Metastasis to soft tissues - 35225724",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.distantLymphNode",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.distantLymphNode",
        "short": "distant lymph node (R)",
        "definition": "Describes if site of metastasic disease  is dystan lymph node ",
        "comment": "Distant spread to lymph node - 36769243",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.lung",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.lung",
        "short": "lung (R)",
        "definition": "Describes if site of metastasic disease  is lung ",
        "comment": "Metastasis to lung - 36770283",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.metastasisatbone",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.metastasisatbone",
        "short": "metastasisAtBone (R)",
        "definition": "Describes if site of metastasic disease  is bone ",
        "comment": "Metastasis to bone - 36769301",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.liver",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.liver",
        "short": "liver (R)",
        "definition": "Describes if site of metastasic disease  is liver ",
        "comment": "Metastasis to liver - 36770544",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.pleura",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.pleura",
        "short": "pleura (R)",
        "definition": "Describes if site of metastasic disease  is pleura ",
        "comment": "Metastasis to pleura - 35226258",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.peritoneum",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.peritoneum",
        "short": "peritoneum (R)",
        "definition": "Describes if site of metastasic disease  is peritoneum ",
        "comment": "Metastasis to peritoneum - 35226253",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.brain",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.brain",
        "short": "brain (R)",
        "definition": "Describes if site of metastasic disease  is brain ",
        "comment": "Metastasis to brain - 36768862",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      },
      {
        "id": "DiseaseExtent.sites.otherViscera",
        "extension": [
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-headneck-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension": [
              {
                "url": "code",
                "valueCode": "SHALL:handle"
              },
              {
                "url": "actor",
                "valueCanonical": "http://hl7.eu/fhir/ig/idea4rc/actor-sarcoma-i4rc"
              }
            ],
            "url": "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path": "DiseaseExtent.sites.otherViscera",
        "short": "other viscera (R)",
        "definition": "Describes if site of metastasic disease  is other viscera \nUse the generic metastasis code or a metastasis subsumed in it, 36769180",
        "comment": "Metastasis - 36769180",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "boolean"
          }
        ]
      }
    ]
  }
}