{
  "resourceType": "StructureDefinition",
  "id": "ext-category-SMD",
  "url": "http://ontariohealth.ca/fhir/StructureDefinition/ext-accdr-category-SMD",
  "version": "0.1.0",
  "name": "ExtCategorySubjectMatterDomain",
  "title": "Category Subject Matter Domain",
  "status": "active",
  "date": "2024-04-12T14:25:36.8218753+00:00",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Basic"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Category Subject Matter Domain"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://ontariohealth.ca/fhir/StructureDefinition/ext-accdr-category-SMD"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "type": [
          {
            "code": "Coding"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "description": "The document-subject-matter-domain property in LOINC characterizes the general focus or domain of knowledge represented within the content of the note. Typically values represent medical specialties but there is no requirement that the author have licensure or registration in that field. (example Audiology, Neurology, Cardiac Surgery, Nephrology etc). It is used in the element category:sliceCategory-subject-matter-domain in FHIR in the Composition and DocumentReference profiles. This value set contains SMD codes supported by acCDR - some from LOINC ontology parts and some OntarioHealth defined codes.",
          "valueSet": "http://ontariohealth.ca/fhir/ValueSet/documentsubject-matter-domain"
        }
      },
      {
        "id": "Extension.value[x].system",
        "path": "Extension.value[x].system",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "Extension.value[x].code",
        "path": "Extension.value[x].code",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "Extension.value[x].display",
        "path": "Extension.value[x].display",
        "min": 1,
        "mustSupport": true
      }
    ]
  }
}