{
  "resourceType": "StructureDefinition",
  "url": "http://www.agfa.com/ei/fhir/StructureDefinition/ei_servicerequest_extension",
  "name": "Service_Request_Extension",
  "status": "draft",
  "description": "Extension on resoure Service Request to distinguish between an Enterprise Imaging Service Request, Requested Procedure or Scheduled Procedure step",
  "fhirVersion": "4.0.0",
  "mapping": [
    {
      "identity": "agfa-ei-model",
      "name": "Enterprise Imaging DB model"
    }
  ],
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "ServiceRequest"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "snapshot": {},
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "Enterprise Imaging Service Request extension"
      },
      {
        "id": "Extension.extension",
        "path": "Extension.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "rules": "open"
        }
      },
      {
        "id": "Extension.extension:Type",
        "path": "Extension.extension",
        "sliceName": "Type",
        "min": 1,
        "max": "1",
        "binding": {
          "strength": "required",
          "valueSet": "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type"
        }
      },
      {
        "id": "Extension.extension:Type.url",
        "path": "Extension.extension.url",
        "fixedUri": "Type"
      },
      {
        "id": "Extension.extension:Type.value[x]",
        "path": "Extension.extension.value[x]",
        "code": [
          {
            "system": "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type",
            "code": "SERVICE_REQUEST",
            "display": "SERVICE_REQUEST"
          },
          {
            "system": "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type",
            "code": "REQUESTED_PROCEDURE",
            "display": "REQUESTED_PROCEDURE"
          },
          {
            "system": "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type",
            "code": "SCHEDULED_PROCEDURE_STEP",
            "display": "SCHEDULED_PROCEDURE_STEP"
          }
        ],
        "short": "SERVICE_REQUEST | REQUESTED_PROCEDURE | SCHEDULED_PROCEDURE_STEP",
        "min": 1,
        "type": [
          {
            "code": "code",
            "profile": [
              "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type"
            ]
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "http://www.agfa.com/ei/fhir/ValueSet/ei-vs-servicerequest-type"
        }
      },
      {
        "id": "Extension.extension:Requesting_Department",
        "path": "Extension.extension",
        "sliceName": "Requesting_Department",
        "max": "1"
      },
      {
        "id": "Extension.extension:Requesting_Department.url",
        "path": "Extension.extension.url",
        "fixedUri": "Requesting_Department"
      },
      {
        "id": "Extension.extension:Requesting_Department.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://www.agfa.com/ei/fhir/StructureDefinition/ei_department"
            ],
            "aggregation": [
              "referenced"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:Requesting_Department.value[x].type",
        "path": "Extension.extension.value[x].type",
        "fixedUri": "Organization"
      },
      {
        "id": "Extension.extension:Requesting_Facility",
        "path": "Extension.extension",
        "sliceName": "Requesting_Facility",
        "max": "1"
      },
      {
        "id": "Extension.extension:Requesting_Facility.url",
        "path": "Extension.extension.url",
        "fixedUri": "Requesting_Facility"
      },
      {
        "id": "Extension.extension:Requesting_Facility.value[x]",
        "path": "Extension.extension.value[x]",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://www.agfa.com/ei/fhir/StructureDefinition/ei_facility"
            ],
            "aggregation": [
              "referenced"
            ]
          }
        ]
      },
      {
        "id": "Extension.extension:Requesting_Facility.value[x].type",
        "path": "Extension.extension.value[x].type",
        "fixedUri": "Organization"
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "http://www.agfa.com/ei/fhir/StructureDefinition/ei_servicerequest_extension"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "max": "0"
      }
    ]
  }
}