{
  "resourceType": "StructureDefinition",
  "id": "CA-eReC-reason-for-no-HCN-EXT",
  "url": "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-reason-for-no-HCN-EXT",
  "name": "ReasonForNoHCN",
  "title": "ReasonForNoHCN",
  "status": "draft",
  "description": "This extension is used to convey the reason for not providing the patient's health card number as a business identifier.",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Patient.identifier"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "definition": "A reason for not providing the patient's health card number as a business identifier"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "max": "0"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-reason-for-no-HCN-EXT"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "http://fhir.infoway-inforoute.ca/io/CA-eReC/ValueSet/no-hcn-reasons"
        }
      }
    ]
  }
}