{
  "resourceType": "StructureDefinition",
  "id": "composition-section-subject",
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "sd"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://hl7.org/fhir/StructureDefinition/composition-section-subject",
  "version": "4.6.0",
  "name": "section-subject",
  "title": "Overrides Composition.subject",
  "status": "draft",
  "date": "2020-12-28T05:55:11+00:00",
  "publisher": "HL7",
  "description": "Specifies that the section has a different subject that the Composition, or it's container section.",
  "fhirVersion": "4.6.0",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Composition.section"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Section has a different subject that it's container",
        "definition": "Specifies that the section has a different subject that the Composition, or it's container section.",
        "comment": "This is used in various FHIR value sets to make comments on how particular codes are used when the formal definition is a little abstract or vague, but it's not clear whether it belongs in the actual value set resource.",
        "min": 0,
        "max": "1",
        "isModifier": false
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://hl7.org/fhir/StructureDefinition/composition-section-subject"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "min": 1,
        "type": [
          {
            "code": "string"
          }
        ]
      }
    ]
  }
}