ICD-10-AM/ACHI/ACS Twelfth Edition


The ICD-10-AM/ACHI/ACS classification system consists of:

  • Classification of diseases, injuries and related health problems - International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM)
  • Classification of surgeries, therapies and health interventions - Australian Classification of Health Interventions (ACHI)
  • Classification guidelines for nationally consistent application of ICD-10-AM and ACHI - Australian Coding Standards (ACS)

ICD-10-AM/ACHI/ACS is used in public and private hospitals in Australia to classify episodes of admitted patient care:

The classification system products for Twelfth Edition include:

Product Description Available from
Hardcopy books Includes the printed copy of the classification volumes: the Alphabetic Indices and Tabular Lists for ICD-10-AM and ACHI, and the ACS Available now from the Lane Print website
Education modules Online modules that outline the major changes made for Twelfth Edition Available now from the IHPA website
Summary of changes A report listing the overall changes to the classification volumes and summary of updates Available now from the IHPA website
Reference of changes An education product that lists the specific changes to the classification volumes Available now from the IHPA website
Frequently Asked Questions Responses to questions asked about new edition education, retired with the publication of each new edition Click here to submit an FAQ
Code lists and Mapping Tables Electronic files that contain codes, descriptions and attributes (eg sex and age edits) and tables for mapping between Twelfth Edition and Eleventh Edition that are used in software products Available now from the Lane Print website
Chronicle Lists the changes to codes and standards across the editions of ICD-10-AM/ACHI/ACS July 2022

Vendors that provide ICD-10-AM/ACHI/ACS software are licensed by IHPA. However, please note that IHPA does not certify and is not responsible for the distribution or use of this software.

Further information on previous editions of ICD-10-AM/ACHI/ACS can be found on IHPA’s website under Publications.