### Usage Notes

**Profile specific implementation guidance:**
- See each Identifier profile page for guidance related to that identifier type.
- This profile supports the sex, gender, and related concepts of Name to Use, Gender Identity, Individual Pronouns, Recorded Sex or Gender, Sex Assigned at Birth, and Sex Parameter for Clinical Use:
   - When exchanging concepts of sex or gender, refer to the guidance in [Sex and Gender](sexgender.html) and the [Gender Harmony Implementation Guide](http://hl7.org/xprod/ig/uv/gender-harmony/).
   - The `Patient.gender` value **SHALL** be regarded as a Recorded Sex or Gender (RSG) value. If assertions regarding the nature of the `Patient.gender` value are required, a single instance of the [Person Recorded Sex or Gender](https://hl7.org/fhir/extensions/StructureDefinition-individual-recordedSexOrGender.html) extension can be included with these assertions and its `genderElementQualifier` subelement set to a value of "true".
- When constructing an address:
  - an international address can be represented using the core [Address](http://hl7.org/fhir/R4/datatypes.html#Address) data type
  - an Australian address can be represented using the [Australian Address](StructureDefinition-au-address.html) data type profile
- See [Representing Communication Preferences](generalguidance.html#representing-communication-preferences) for guidance on how to represent languages that may be used to communicate with the patient about their health including preferred language and if an interpreter is required.

**Extensions under consideration:**
* Patient: [Ethnicity](StructureDefinition-ethnicity.html)
