ICD-10-AM/ACHI/ACS Eleventh Edition

Date published: 1 July 2019

ICD-10-AM/ACHI/ACS Eleventh Edition, was implemented between 1 July 2019 and 30 June 2022 for classifying episodes of admitted patient care across Australian hospital services.

The ICD-10-AM/ACHI/ACS classification system is comprised of the following classifications:

  • International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM)
  • Australian Classification of Health Interventions (ACHI)
  • Australian Coding Standards (ACS)

The ICD-10-AM/ACHI/ACS classification system used in conjunction with National Coding Advice and the Clinical Coding Practice Framework.

ICD-10-AM/ACHI/ACS Eleventh Edition supersedes ICD-10-AM/ACHI/ACS Tenth Edition and is applicable for separations from 1 July 2019 to 30 June 2022

In March 2020, IHACPA published advice on how to classify coronavirus disease 2019 (COVID-19) using ICD-10-AM/ACHI/ACS Eleventh Edition. The published advice, including a comparison between Eleventh Edition and Twelfth Edition, is provided on the How to classify COVID-19 webpage.

ICD-10-AM/ACHI/ACS Eleventh Edition is published as a set of five volumes which contain the following products.

ICD-10-AM Tabular List of Diseases (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, as are the below four appendices.

  • Appendix A – Morphology of neoplasms
  • Appendix B – Special tabulation lists for mortality and morbidity
  • Appendix C – Unacceptable principal diagnosis codes
  • Appendix D – Classification of hospital acquired diagnoses (CHADx)

ICD-10-AM Alphabetic Index of Diseases (Volume 2)

The ICD-10-AM Alphabetic Index of Diseases is used to locate diagnostic terms to be coded. The ICD-10-AM Alphabetic Index contains many diagnostic terms that do not appear in the ICD-10-AM Tabular List. The ICD-10-AM Alphabetic Index contains the below three 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 of Interventions (Volume 3)

The ACHI Tabular List contains the interventions classification and includes the following appendices:

  • Appendix A – Mapping table for MBS items not included in ACHI
  • Appendix B – ACHI code list

ACHI Alphabetic Index of Interventions (Volume 4)

The ACHI Alphabetic Index is used to locate procedural terms to be coded. The ACHI Alphabetic Index contains many procedural terms which do not appear in the ACHI Tabular List.

Australian Coding Standards (Volume 5)

The Australian Coding Standards contain the national standards that provide guidance in the application of the ICD-10-AM and the ACHI codes.

One appendix is included:

  • Appendix A – Clinical coders’ creed

To purchase ICD-10-AM/ACHI/ACS Eleventh Edition, please visit the Lane Print website.

ICD-10-AM/ACHI/ACS Chronicle

The Chronicle describes the changes to ICD-10-AM and ACHI codes and the ACS across all editions of ICD-10-AM/ACHI/ACS:

Mapping tables

Information on the various mapping tables available can be found on the IHACPA website ICD-10-AM and ACHI mapping tables.

Please note, the purchase and use of these products are subject to licence arrangements – further information can be found on the Lane Print website.

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