{
  "resourceType": "StructureDefinition",
  "url": "https://example.org/fhir/StructureDefinition/MyPatient",
  "name": "MyPatient",
  "status": "draft",
  "date": "2023-01-31T11:12:14.1561195+00:00",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Patient",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Patient",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Patient.identifier",
        "path": "Patient.identifier",
        "slicing": {
          "discriminator": [
            {
              "type": "pattern",
              "path": "$this"
            }
          ],
          "rules": "open"
        },
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "Patient.identifier:BuergerId",
        "path": "Patient.identifier",
        "sliceName": "BuergerId",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Patient.identifier:BuergerId.type",
        "path": "Patient.identifier.type",
        "mustSupport": false
      },
      {
        "id": "Patient.identifier:BuergerId.system",
        "path": "Patient.identifier.system",
        "min": 1,
        "fixedUri": "http://fhir.ufp/sid/ufp-citizen-id"
      },
      {
        "id": "Patient.identifier:BuergerId.value",
        "path": "Patient.identifier.value",
        "min": 1,
        "mustSupport": false
      },
      {
        "id": "Patient.identifier:VersichertenId",
        "path": "Patient.identifier",
        "sliceName": "VersichertenId",
        "max": "1"
      },
      {
        "id": "Patient.identifier:VersichertenId.system",
        "path": "Patient.identifier.system",
        "min": 1,
        "fixedUri": "http://fhir.de/sid/gkv/kvid-10",
        "mustSupport": true
      },
      {
        "id": "Patient.identifier:VersichertenId.value",
        "path": "Patient.identifier.value",
        "min": 1,
        "condition": [
          "kvid-1"
        ],
        "constraint": [
          {
            "key": "kvid-1",
            "severity": "warning",
            "human": "Dies ist keine Versichertennummer!",
            "expression": "matches('^[A-Z][0-9]{9}$')"
          }
        ]
      },
      {
        "id": "Patient.name.family",
        "path": "Patient.name.family",
        "min": 1
      },
      {
        "id": "Patient.birthDate",
        "path": "Patient.birthDate",
        "min": 1
      }
    ]
  }
}