http://hl7.org/fhir/StructureDefinition/servicerequest-geneticsItem|5.2.0

The specific diagnostic investigations that are requested as part of this request. Sometimes, there can only be one item per request, but in most contexts, more than one investigation can be requested.
{
  "description": "The specific diagnostic investigations that are requested as part of this request. Sometimes, there can only be one item per request, but in most contexts, more than one investigation can be requested.",
  "package": "hl7.fhir.uv.extensions.r5@5.2.0",
  "date": "2015-10-20T00:00:00Z",
  "derivation": "constraint",
  "publisher": "HL7 International / Orders and Observations",
  "fhirVersion": "5.0.0",
  "jurisdiction": [ {
    "coding": [ {
      "code": "001",
      "system": "http://unstats.un.org/unsd/methods/m49/m49.htm"
    } ]
  } ],
  "name": "Item",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "fhirversion": null,
  "title": "Item",
  "versionAlgorithmCoding": null,
  "extension": [ {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "oo"
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 1
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "deprecated",
    "_valueCode": {
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status-reason",
        "valueMarkdown": "This extension has been replaced by the profiles and extensions defined in the [Genomics Reporting Guide](https://hl7.org/fhir/uv/genomics-reporting/)"
      } ]
    }
  }, {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
    "valueCode": "can-bind"
  } ],
  "status": "retired",
  "id": "dd2b3537-a1ad-53f2-a8d5-4b1bb412894e",
  "kind": "complex-type",
  "url": "http://hl7.org/fhir/StructureDefinition/servicerequest-geneticsItem",
  "identifier": null,
  "context": [ {
    "type": "element",
    "expression": "DiagnosticReport"
  } ],
  "versionAlgorithmString": null,
  "fhir_id": null,
  "version": "5.2.0",
  "contact": [ {
    "telecom": [ {
      "value": "http://www.hl7.org/Special/committees/orders",
      "system": "url"
    } ]
  } ],
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}