Gender code X

Identifying and definitional attributes

Metadata item type:Value Domain
METeOR identifier:635944
Registration status:Health, Standard 11/05/2017
ACT Health, Final 02/01/2019

A code set representing the distinction between male, female and other genders.

Representational attributes

Representation class:Code
Data type:String
Maximum character length:1
Permissible values:
Supplementary values:
9Not stated/inadequately described

Collection and usage attributes

Guide for use:

The Australian Bureau of Statistics (ABS) Standard for Sex and Gender Variables includes the following Alternate Code system:

M    Male

F    Female

X    Other

For statistical purposes, the following category codes, labels and definitions are preferred:

CODE 1   Male

Adults who identify themselves as men, and children who identify themselves as boys.

CODE 2   Female

Adults who identify themselves as women, and children who identify themselves as girls.

CODE 3   Other

Adults and children who identify as non-binary, gender diverse, or with descriptors other than man/boy or woman/girl.

The value meaning of 'Other' has been assigned to Code 3 for this value domain, which replaces 'Gender other/diverse' for the superseded value domain Gender code N. Terms such as ‘gender diverse’, ‘non-binary’, ‘unspecified’, 'trans', 'transgender', 'transsexual', 'gender queer', 'pan-gendered', 'androgynous' and 'inter-gender' are variously used to describe the 'Other' category of gender. Some cultures may have their own terms for gender identities outside male and female. The label ‘Other’ is used because a more descriptive term has not been widely agreed within the general community.


The ABS will periodically review its Standard for Sex and Gender Variables. This process will specifically investigate the appropriateness of the naming of the 'Other' category.

Source and reference attributes

Submitting organisation:

Australian Institute of Health and Welfare


Australian Bureau of Statistics 2016. Standard for Sex and Gender Variables (Cat. no. 1200.0.55.012). Viewed 26 July 2016.

Attorney-General's Department 2015. Australian Government Guidelines on the Recognition of Sex and Gender. Viewed 26 July 2016.

Relational attributes

Related metadata references:

Supersedes Gender code N Health, Proposed 02/07/2013, Indigenous, Endorsed 05/09/2014, Community Services (retired), Not progressed 23/01/2018

Has been superseded by Gender code X Health, Standardisation pending 22/07/2021

Data elements implementing this value domain:

Person—gender, code X Health, Standard 11/05/2017
ACT Health, Final 02/01/2019