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National Coding Advice

  • Section: 
  • Publication Date: 
    March 16, 2022
  • Primary Keyword: 
    Admitted care classifications

Coding Rules and frequently asked questions

Coding Rules provide specific classification advice applicable for separations beginning the following month, unless specified otherwise. A Coding Rule published on 15 March 2022 is applicable for separations from 1 April 2022.

Coding Rules may also be used to activate an emergency use code or placeholder code in a classification.

Frequently asked questions (FAQs) are released from queries received on the most recent edition of the education. These are typically retired with the introduction of a new edition of ICD-10-AM/ACHI/ACS.

Coding advice in the form of national Coding Rules are generally published every quarter. Frequently asked questions (FAQs) are issued to assist with the implementation of a new edition of ICD-10-AM/ACHI/ACS or a Coding Rule to activate an emergency use code. National Coding Advice is maintained on the Australian Classification Exchange (ACE), which has a list of current and updated Coding Rules and FAQ's.

Document Current from
National Coding Advice – Coding Rules and FAQs for Eleventh Edition 1 April 2022
Coding Rule - COVID-19 vaccines causing adverse effects in therapeutic use 1 January 2021
Coding Rule - Post COVID-19 conditions 1 January 2021
Coding Rule - Coronavirus disease 2019 (COVID-19) 1 January 2020; updated 27 March 2020
Coding Rule - Vaping-related disorder September 2019
Coding Rules Retired 30 June 2019


Clinical updates

Clinical updates have been developed for clinical coding education purposes and can be used over multiple editions, where appropriate. Previously the clinical updates were located under national coding rules but as they are for education purposes only, and do not contain rules for coding, they are now provided separately.


Other documents 

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