{
  "resourceType": "StructureDefinition",
  "id": "UKCore-ServiceRequest-Lab",
  "url": "https://fhir.hl7.org.uk/StructureDefinition/UKCore-ServiceRequest-Lab",
  "version": "1.0.0",
  "name": "UKCoreServiceRequestLab",
  "title": "UK Core ServiceRequest Lab",
  "status": "active",
  "date": "2023-04-28",
  "publisher": "HL7 UK",
  "contact": [
    {
      "name": "HL7 UK",
      "telecom": [
        {
          "system": "email",
          "value": "ukcore@hl7.org.uk",
          "use": "work",
          "rank": 1
        }
      ]
    }
  ],
  "description": "Defines the constraints and extensions on the UK Core Profile ServiceRequest.",
  "purpose": "To provide implementers additional support for requesting a procedure or diagnostic or other service to be planned, proposed, or performed, with regards to a laboratory observation or a laboratory diagnostic report.",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "ServiceRequest",
  "baseDefinition": "https://fhir.hl7.org.uk/StructureDefinition/UKCore-ServiceRequest",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "ServiceRequest.code",
        "path": "ServiceRequest.code",
        "definition": "A set of codes from the SNOMED Clinical Terminology UK coding system regrading laboratory medicine test requests and results.",
        "binding": {
          "strength": "preferred",
          "description": "A set of codes that define laboratory medicine test requests and results. Selected from the SNOMED CT UK coding system.",
          "valueSet": "https://fhir.hl7.org.uk/ValueSet/UKCore-UnifiedTestList"
        }
      },
      {
        "id": "ServiceRequest.reasonReference",
        "path": "ServiceRequest.reasonReference",
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Condition",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-DiagnosticReport",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-DocumentReference",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-DiagnosticReport-Lab",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-Lab",
              "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Observation-LabGroup"
            ]
          }
        ]
      }
    ]
  }
}