{
  "resourceType": "StructureDefinition",
  "id": "GKVSV-EX-ERP-TA7-Rechnungsdatum",
  "url": "https://fhir.gkvsv.de/StructureDefinition/GKVSV_EX_ERP_TA7_Rechnungsdatum",
  "version": "1.5.1",
  "name": "GKVSV_EX_ERP_TA7_Rechnungsdatum",
  "title": "GKVSV_EX_ERP_TA7_Rechnungsdatum",
  "status": "active",
  "date": "2025-03-31",
  "description": "Rechnungsdatum",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "dateTime"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://fhir.gkvsv.de/StructureDefinition/GKVSV_EX_ERP_TA7_Rechnungsdatum"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Rechnungsdatum",
        "definition": "Rechnungsdatum",
        "min": 1,
        "type": [
          {
            "code": "dateTime"
          }
        ],
        "constraint": [
          {
            "key": "form-1",
            "severity": "error",
            "human": "Wert muss ein Datum in der Form: YYYY-MM-DD sein.",
            "expression": "toString().matches('^([0-9]([0-9]([0-9][1-9]|[1-9]0)|[1-9]00)|[1-9]000)(-(0[1-9]|1[0-2])(-(0[1-9]|[1-2][0-9]|3[0-1]))?)?$')",
            "source": "https://fhir.gkvsv.de/StructureDefinition/GKVSV_EX_ERP_TA7_Rechnungsdatum"
          }
        ]
      }
    ]
  }
}