CardiacConditionsCodeSystem.json

{
  "resourceType": "CodeSystem",
  "url": "http://example.com/CodeSystem/CardiacConditions",
  "version": "1.0.0",
  "name": "CardiacConditions",
  "status": "active",
  "concept": [
    {
      "code": "myocardial-infarction",
      "display": "Myocardial Infarction"
    },
    {
      "code": "heart-failure",
      "display": "Heart Failure"
    },
    {
      "code": "arrhythmia",
      "display": "Arrhythmia"
    }
  ]
}

CardiacConditionsValueSet.json

{
  "resourceType": "ValueSet",
  "url": "http://example.com/ValueSet/CardiacConditions",
  "version": "1.0.0",
  "name": "CardiacConditions",
  "status": "active",
  "compose": {
    "include": [
      {
        "system": "http://example.com/CodeSystem/CardiacConditions"
      }
    ]
  }
}

CardiologyPatientStructureDefinition.json

{
  "resourceType": "StructureDefinition",
  "id": "CardiologyPatientProfile",
  "url": "http://example.com/StructureDefinition/CardiologyPatientProfile",
  "version": "1.0.0",
  "name": "CardiologyPatientProfile",
  "status": "active",
  "publisher": "Cardiology Organization",
  "description": "A profile for cardiology patients",
  "fhirVersion": "4.0.1",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Patient",
  "snapshot": {
    "element": [
      {
        "id": "Patient.extension",
        "path": "Patient.extension",
        "min": 0,
        "max": "*"
      },
      {
        "id": "Patient.extension:cardiac-condition",
        "path": "Patient.extension",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "http://example.com/ValueSet/CardiacConditions"
        }
      }
    ]
  }
}