{
  "resourceType": "StructureDefinition",
  "url": "https://acme.org/fhir/StructureDefinition/ACME-NlcoreVaccinationevent",
  "name": "ACMENlcoreVaccinationevent",
  "status": "draft",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "Immunization",
  "baseDefinition": "http://nictiz.nl/fhir/StructureDefinition/nl-core-Vaccination-event",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Immunization.identifier",
        "path": "Immunization.identifier",
        "min": 1,
        "max": "1"
      },
      {
        "id": "Immunization.identifier.system",
        "path": "Immunization.identifier.system",
        "min": 1
      },
      {
        "id": "Immunization.patient",
        "path": "Immunization.patient",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://acme/fhir/StructureDefinition/Patient"
            ]
          }
        ]
      },
      {
        "id": "Immunization.doseQuantity",
        "path": "Immunization.doseQuantity",
        "min": 1
      },
      {
        "id": "Immunization.reasonCode",
        "path": "Immunization.reasonCode",
        "max": "0"
      }
    ]
  }
}