{
  "resourceType": "StructureDefinition",
  "id": "blood-pressure-observation",
  "url": "https://example.org/fhir/StructureDefinition/BloodPressureObservation",
  "name": "BloodPressureObservation",
  "status": "draft",
  "description": "血壓測量 Observation Profile，遵循 LOINC 標準",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Observation",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Observation",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Observation.code",
        "path": "Observation.code",
        "definition": "此測量為血壓監測，LOINC 代碼 85354-9"
      },
      {
        "id": "Observation.code.coding.system",
        "path": "Observation.code.coding.system",
        "code": [
          {
            "system": "http://loinc.org",
            "code": "85354-9",
            "display": "Blood pressure panel"
          }
        ]
      },
      {
        "id": "Observation.subject",
        "path": "Observation.subject",
        "short": "病人",
        "definition": "此觀察的主體為病人。",
        "min": 1,
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://hl7.org/fhir/StructureDefinition/Patient"
            ]
          }
        ]
      }
    ]
  }
}