ICD-10-AM/ACHI/ACS Thirteenth Edition
Date published: 2 April 2025
ICD-10-AM/ACHI/ACS Thirteenth Edition supersedes ICD-10-AM/ACHI/ACS Twelfth Edition and is applicable for separations from 1 July 2025.
ICD-10-AM/ACHI/ACS is used for classifying admitted patient care and comprises the following:
- International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM) – used to classify diseases, injuries and related health problems
- Australian Classification of Health Interventions (ACHI) – used to classify surgeries, therapies and health interventions
- Australian Coding Standards (ACS) – guidelines for nationally consistent application of ICD-10-AM and ACHI.
ICD-10-AM/ACHI/ACS Thirteenth Edition is used in conjunction with National Coding Advice and the Clinical Coding Practice Framework and has been developed in accordance with the Governance Framework for the Development of the Admitted Care Classifications.
IHACPA has sought relevant input from clinicians, jurisdictions and other health sector stakeholders represented on its technical and advisory committees in its development.
ICD-10-AM/ACHI/ACS Thirteenth Edition material will be available in a staged release from April 2025. Materials include hard copy books, electronic code lists, ICD-10-AM electronic appendices, mapping tables, Reference to changes for ICD-10-AM/ACHI/ACS Thirteenth Edition and the ICD-10-AM/ACHI/ACS Chronicle.
This page will be updated as ICD-10-AM/ACHI/ACS Thirteenth Edition material becomes available.
Licensed ICD-10-AM/ACHI/ACS Thirteenth Edition classification materials can be purchased from Lane Print.
Thirteenth Edition education
Education on ICD-10-AM/ACHI/ACS Thirteenth Edition is available on IHACPA Learn.
There are 20 interactive online modules that cover the key changes for ICD‑10‑AM/ACHI/ACS Thirteenth Edition.
Each module will take between 10 and 40 minutes to complete. While it is useful to have ICD-10-AM/ACHI/ACS Thirteenth Edition the modules can be completed without access to the classifications.
Modules are self-paced and include knowledge checks and end-of-module quizzes.
Users are able to track their progress of learning and generate a certificate of completion.
Get started
New users to IHACPA Learn must register their details. Please note that the login details for IHACPA Learn are not the same as the details for the Australian Classification Exchange (ACE) website.
A list of commonly asked questions is available from the Help menu on IHACPA Learn.
Some of the key changes for Thirteenth Edition include:
- Formatting and layout of the ACS
ACS Thirteenth Edition features a standard template, clear Directives, Examples with Rationales explaining code assignment and cross references to related ACS. - Introduction of cluster coding
Cluster coding is a mechanism of linking related diagnosis codes through use of a diagnosis cluster identifier (DCID) that enhances the value of coded data. - Complications of surgical and medical care
Revisions are aimed at eliminating ambiguities and supporting consistency of code assignment for procedural complications. - New codes for social and cultural determinants of health; organ, tissue and cell procurement and transplantation; vaping and voluntary assisted dying.
ICD-10-AM/ACHI/ACS Thirteenth Edition is published as a set of 5 volumes which contain the following products:
ICD-10-AM Tabular List (Volume 1)
The ICD-10-AM Tabular List contains the disease classification at the three, four and five character levels with a symbol to indicate Australian codes.
A listing of the three character categories is included.
ICD-10-AM Alphabetic Index (Volume 2)
The ICD-10-AM Alphabetic Index is used to locate diagnostic terms to be coded. The ICD‑10-AM Alphabetic Index contains many clinical terms that do not appear in the ICD‑10‑AM Tabular List.
The ICD-10-AM Alphabetic Index contains 3 sections:
- Section I – Alphabetic index of diseases and nature of injury
- Section II – External causes of injury
- Section III – Table of drugs and chemicals
ACHI Tabular List (Volume 3)
The ACHI Tabular List contains the interventions classification.
A listing of ACHI block numbers is included.
ACHI Alphabetic Index (Volume 4)
The ACHI Alphabetic Index is used to locate intervention terms to be coded. The ACHI Alphabetic Index contains many clinical terms that do not appear in the ACHI Tabular List.
Australian Coding Standards (Volume 5)
The Australian Coding Standards contain the national standards which provide guidance in the application of the ICD-10-AM and the ACHI codes.
One appendix is included:
- Appendix A – Guidelines for formulating clinical documentation queries.
To purchase the ICD-10-AM/ACHI/ACS Thirteenth Edition volumes, the electronic code lists or mapping tables, please visit the Lane Print website.
Please note that the purchase and use of these products are subject to licence arrangements – further information can be found on the Lane Print website.
Last updated: 29 May 2025