{
  "resourceType": "StructureDefinition",
  "id": "Extension-UKCore-BodySiteReference",
  "url": "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-BodySiteReference",
  "version": "1.0.1",
  "name": "ExtensionUKCoreBodySiteReference",
  "title": "Extension UK Core Body Site Reference",
  "status": "retired",
  "date": "2026-02-25",
  "publisher": "HL7 UK",
  "contact": [
    {
      "name": "HL7 UK",
      "telecom": [
        {
          "system": "email",
          "value": "ukcore@hl7.org.uk",
          "use": "work",
          "rank": 1
        }
      ]
    }
  ],
  "description": "An extension to replicate the changes within R5 allowing the data type of Specimen.collection.bodySite to act as a CodeableReference (BodyStructure).",
  "purpose": "Allowing the referencing to bodyStructure",
  "copyright": "Copyright © 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
  "fhirVersion": "4.0.1",
  "kind": "complex-type",
  "abstract": false,
  "context": [
    {
      "type": "element",
      "expression": "Specimen.collection.bodySite"
    }
  ],
  "type": "Extension",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "Extension",
        "path": "Extension",
        "short": "An extension to allow the referencing to BodyStructure",
        "definition": "An extension to replicate the changes within R5 altering the data type of Specimen.collection.bodySite from CodeableConcept to CodeableReference (bodyStructure)."
      },
      {
        "id": "Extension.url",
        "path": "Extension.url",
        "fixedUri": "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-BodySiteReference"
      },
      {
        "id": "Extension.value[x]",
        "path": "Extension.value[x]",
        "short": "Reference to BodyStructure",
        "min": 1,
        "type": [
          {
            "code": "Reference",
            "targetProfile": [
              "http://hl7.org/fhir/StructureDefinition/BodyStructure"
            ]
          }
        ]
      }
    ]
  }
}