# AU Core Sex Assigned At Birth - AU Core Implementation Guide v2.0.0-preview

* [**Table of Contents**](toc.md)
* [**FHIR Artefacts**](fhirartefacts.md)
* [**Artefacts Summary**](artifacts.md)
* **AU Core Sex Assigned At Birth**

## Extension: AU Core Sex Assigned At Birth 

| | | |
| :--- | :--- | :--- |
| *Official URL*:http://hl7.org.au/fhir/core/StructureDefinition/au-core-rsg-sexassignedab | *Version*:2.0.0-preview | |
| *Standards status:*[Trial-use](http://hl7.org/fhir/R4/versions.html#std-process) | [Maturity Level](https://build.fhir.org/ig/hl7au/au-fhir-base/generalguidance.html#maturity-levels): 2 | *Computable Name*:AUCoreSexAssignedAtBirth |
| **Copyright/Legal**: Used by permission of HL7 International, all rights reserved Creative Commons License. HL7 Australia© 2022+; Licensed Under Creative Commons No Rights Reserved. | | |

This profile defines the minimum expectations for a [Person Recorded Sex or Gender extension](https://hl7.org/fhir/extensions/StructureDefinition-individual-recordedSexOrGender.html) when representing Sex Assigned at Birth. This profile identifies the **additional** mandatory core elements, extensions, vocabularies and value sets that **SHALL** be present in the Extension when conforming to this profile.

**Context of Use**

### Profile Specific Implementation Guidance

* See the [Sex and Gender](sex-and-gender.md) page for guidance on exchanging sex and gender related concepts conformant to AU Core.

**Examples:**

* Examples for this Extension Profile: [Patient/banks-mia-leanne](Patient-banks-mia-leanne.md)

**Usage info**

**Usages:**

* This Extension is not used by any profiles in this Implementation Guide

You can also check for [usages in the FHIR IG Statistics](https://packages2.fhir.org/xig/hl7.fhir.au.core|current/StructureDefinition/au-core-rsg-sexassignedab)

**Changes since version 1.0.0:**

* No changes

### Formal Views of Extension Content

 [Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work](http://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#structure-definitions). 

 

Other representations of profile: [CSV](StructureDefinition-au-core-rsg-sexassignedab.csv), [Excel](StructureDefinition-au-core-rsg-sexassignedab.xlsx), [Schematron](StructureDefinition-au-core-rsg-sexassignedab.sch) 

#### Terminology Bindings

#### Constraints



## Resource Content

```json
{
  "resourceType" : "StructureDefinition",
  "id" : "au-core-rsg-sexassignedab",
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger" : 2
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
      "valueCode" : "can-bind"
    },
    {
      "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode" : "trial-use",
      "_valueCode" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical" : "http://hl7.org.au/fhir/core/ImplementationGuide/hl7.fhir.au.core"
          }
        ]
      }
    }
  ],
  "url" : "http://hl7.org.au/fhir/core/StructureDefinition/au-core-rsg-sexassignedab",
  "version" : "2.0.0-preview",
  "name" : "AUCoreSexAssignedAtBirth",
  "title" : "AU Core Sex Assigned At Birth",
  "status" : "active",
  "date" : "2025-11-27T01:36:36+00:00",
  "publisher" : "HL7 Australia",
  "contact" : [
    {
      "name" : "HL7 Australia FHIR Work Group",
      "telecom" : [
        {
          "system" : "url",
          "value" : "https://confluence.hl7.org/display/HAFWG",
          "use" : "work"
        }
      ]
    }
  ],
  "description" : "This profile defines the minimum expectations for a [Person Recorded Sex or Gender extension](https://hl7.org/fhir/extensions/StructureDefinition-individual-recordedSexOrGender.html) when representing Sex Assigned at Birth. This profile identifies the *additional* mandatory core elements, extensions, vocabularies and value sets that **SHALL** be present in the Extension when conforming to this profile.",
  "jurisdiction" : [
    {
      "coding" : [
        {
          "system" : "urn:iso:std:iso:3166",
          "code" : "AU"
        }
      ]
    }
  ],
  "copyright" : "Used by permission of HL7 International, all rights reserved Creative Commons License. HL7 Australia© 2022+; Licensed Under Creative Commons No Rights Reserved.",
  "fhirVersion" : "4.0.1",
  "mapping" : [
    {
      "identity" : "rim",
      "uri" : "http://hl7.org/v3",
      "name" : "RIM Mapping"
    }
  ],
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [
    {
      "type" : "element",
      "expression" : "Patient"
    },
    {
      "type" : "element",
      "expression" : "RelatedPerson"
    },
    {
      "type" : "element",
      "expression" : "Person"
    },
    {
      "type" : "element",
      "expression" : "Practitioner"
    }
  ],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/individual-recordedSexOrGender",
  "derivation" : "constraint",
  "differential" : {
    "element" : [
      {
        "id" : "Extension",
        "path" : "Extension",
        "short" : "Sex Assigned at Birth",
        "definition" : "Sex assigned at birth refers to what was determined by biological sex characteristics including genital and chromosome composition observed at birth or infancy. Sex assigned at birth is captured once for a person and is not expected to change within their lifetime.",
        "comment" : "A person's sex can change over the course of their lifetime. The value in sex assigned at birth may not match a person’s gender or the sex recorded on their birth certificate or values in observations taken later in life that are the result of a specific measurement e.g. gonadal, ductal or phenotypic.",
        "alias" : ["Birth sex", "Natal sex"]
      },
      {
        "id" : "Extension.extension:value",
        "extension" : [
          {
            "extension" : [
              {
                "url" : "code",
                "valueCode" : "SHALL:populate-if-known"
              },
              {
                "url" : "actor",
                "valueCanonical" : "http://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder"
              }
            ],
            "url" : "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension" : [
              {
                "url" : "code",
                "valueCode" : "SHALL:no-error"
              },
              {
                "url" : "actor",
                "valueCanonical" : "http://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester"
              }
            ],
            "url" : "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path" : "Extension.extension",
        "sliceName" : "value",
        "min" : 1,
        "type" : [
          {
            "code" : "Extension"
          }
        ],
        "mustSupport" : true
      },
      {
        "id" : "Extension.extension:value.value[x]",
        "path" : "Extension.extension.value[x]",
        "min" : 1,
        "type" : [
          {
            "code" : "CodeableConcept"
          }
        ],
        "binding" : {
          "strength" : "extensible",
          "valueSet" : "https://healthterminologies.gov.au/fhir/ValueSet/biological-sex-1"
        }
      },
      {
        "id" : "Extension.extension:type",
        "extension" : [
          {
            "extension" : [
              {
                "url" : "code",
                "valueCode" : "SHALL:populate-if-known"
              },
              {
                "url" : "actor",
                "valueCanonical" : "http://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-responder"
              }
            ],
            "url" : "http://hl7.org/fhir/StructureDefinition/obligation"
          },
          {
            "extension" : [
              {
                "url" : "code",
                "valueCode" : "SHALL:no-error"
              },
              {
                "url" : "actor",
                "valueCanonical" : "http://hl7.org.au/fhir/core/ActorDefinition/au-core-actor-requester"
              }
            ],
            "url" : "http://hl7.org/fhir/StructureDefinition/obligation"
          }
        ],
        "path" : "Extension.extension",
        "sliceName" : "type",
        "short" : "SNOMED Sex Assigned at Birth",
        "definition" : "The type or category of sex or gender that is recorded is sex assigned at birth.",
        "comment" : "Because the recorded sex or gender concept exists primarily as means to exchange sex and gender data concepts that are known NOT to represent a gender identity, sex parameter for clinical use, or attributes related to sexuality, the type is used to identify what type of concept the recorded sex or gender concept is.",
        "min" : 1,
        "max" : "1",
        "type" : [
          {
            "code" : "Extension"
          }
        ],
        "mustSupport" : true
      },
      {
        "id" : "Extension.extension:type.value[x]",
        "path" : "Extension.extension.value[x]",
        "min" : 1,
        "type" : [
          {
            "code" : "CodeableConcept"
          }
        ],
        "patternCodeableConcept" : {
          "coding" : [
            {
              "system" : "http://snomed.info/sct",
              "code" : "1515311000168102"
            }
          ]
        }
      }
    ]
  }
}

```
