<p class="stu-note">This profile is deprecated in AU Base as work is being undertaken in the <a href="https://build.fhir.org/ig/hl7au/au-fhir-erequesting">AU eRequesting</a> project to define the requirements for a diagnostic request. In AU Base this profile is replaced by <a href="StructureDefinition-au-servicerequest.html">AU Base ServiceRequest</a>, which localises core concepts, including identifiers and terminology, for use in an Australian context and enables implementers and modellers to make their own rules, i.e. (<a href="http://hl7.org/fhir/profiling.html">profiling</a>), about how to support these concepts for specific implementation needs.</p>

### Usage Notes

**Profile specific implementation guidance:**
- The [procedure-targetBodyStructure](http://hl7.org/fhir/R4/extension-procedure-targetbodystructure.html) extension may be suitable for use where
   - body site is not implicit in the code found in `ServiceRequest.code` and  
   - body site information is to be handled as a separate resource (e.g. to identify and track separately) instead of an inline coded element in `ServiceRequest.bodySite`. 
- `ServiceRequest.code` for a pathology order is preferred to be a member of the [RCPA - SPIA Requesting Pathology Terminology Reference Set](https://www.healthterminologies.gov.au/integration/R4/fhir/ValueSet/spia-requesting-refset-3). 
- `ServiceRequest.code` for an imaging order is preferred to be a member of the [Imaging Procedure](https://healthterminologies.gov.au/fhir/ValueSet/imaging-procedure-1) value set.
- See each Identifier profile page for guidance related to that identifier type.

**Extensions under consideration:**
* ServiceRequest: [Result Copies To](StructureDefinition-result-copies-to.html) 