Resources
ICD-10-AM/ACHI/ACS resources
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The resources provided on this page are to assist clinical coders and other users of ICD-10-AM/ACHI/ACS. Information may be updated at any time to maintain currency.
ICD-10-AM/ACHI/ACS Thirteenth Edition
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ICD-10-AM/ACHI/ACS Thirteenth Edition supersedes ICD-10-AM/ACHI/ACS Twelfth Edition and is applicable for separations from 1 July 2025.
AR-DRG Version 12.0
The Australian Refined Diagnosis Related Groups (AR-DRG) classification provides a clinically meaningful way to group together treatments and services provided for admitted acute episodes of care. This enables hospitals to be funded for these services using activity-bas...
National Coding Advice
The National Coding Advice contains the Coding Rules and new edition frequently asked questions (FAQs). These are published to facilitate nationally consistent assignment of ICD-10-AM and ACHI codes in the implemented edition of ICD-10-AM/ACHI/ACS. National Co...
Tier 2 Non-Admitted Services Version 9.1 2025–26
The key publications that support the Tier 2 Non-Admitted Services Classification (Tier 2) are the Tier 2 Non-Admitted Services Definitions Manual and the Tier 2 Non-Admitted Services Compendium.
AR-DRG Version 11.0
The Australian Refined Diagnosis Related Groups (AR-DRGs) is a classification that provides a clinically meaningful way to relate or group the number and type of patients treated in admitted acute episodes of care to the resources required in treatment. AR-DRG...
Consultation and review of the AR-DRG and ICD-10-AM/ACHI/ACS Classification Systems
The development cycle of the admitted care classifications was last reviewed in 2009. Since that time the landscape has changed significantly with the National Health Reform Agreement in 2011 and the introduction of activity based funding nationally. The recent review f...
AR-DRG Version 8.0
The Australian Refined Diagnosis Related Group (AR-DRG) Version 8.0 was implemented from July 1, 2016 and is the Australian Diagnosis Related Group (DRG) patient classification system that provides a clinically meaningful way of relating the types of patients treated in...
ICD-10-AM/ACHI/ACS Eleventh Edition
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.
Tier 2 Non-Admitted Services 2024–25
The key publications that support the Tier 2 Non-Admitted Services Classification (Tier 2) are the Tier 2 Non-Admitted Services Definition Manual and the Tier 2 Non-Admitted Services Compendium.
ICD-10-AM/ACHI/ACS Twelfth Edition
ICD-10-AM/ACHI/ACS Twelfth Edition supersedes ICD-10-AM/ACHI/ACS Eleventh Edition and is applicable for separations between 1 July 2022 and 30 June 2025.
Australian National Subacute and Non-Acute Patient Classification Version 4.0
The Australian National Subacute and Non-Acute Patient Classification (AN-SNAP) is a casemix classification used for activity based funding, clinical management and other purposes.These documents provide background to the development of AN-SNAP Version 4.0, and exp...
Australian National Subacute and Non-Acute Patient Classification Version 5.0
The Australian National Subacute and Non-Acute Patient Classification (AN-SNAP) is a casemix classification used for activity based funding, clinical management and other purposes.
Emergency Care (ICD-10-AM Thirteenth Edition) Principal Diagnosis Short List – User Guide
This document details the components and conventions of the Emergency Care International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM) Principal Diagnosis Short List (the EPD Short List) and is ai...
AECC Version 1.1 Final Report
This final report provides the detailed statistical analysis undertaken in the development of the Australian Emergency Care Classification (AECC) Version 1.1, including the key changes to the classification and methodology of the refinement.
Standardised Mini-Mental State Examination (SMMSE) Guide
Since Dr. Marshall Folstein first developed the Mini- Mental State Examination (MMSE) in 1975, it has become widely used as a screening test for cognitive impairment and it is routinely used as an inclusion / exclusion criterion and outcome measure in clinical trials. T...
AECC Definitions Manual
This manual details the logic for assigning AECC end classes to emergency care episodes. The logic is represented in software—the AECC grouper—which should be the primary way that emergency care episodes are grouped to the AECC. This manual is a reference for the logic...
Governance Framework for the Development of the Australian Mental Health Care Classification
The Independent Health and Aged Care Pricing Authority undertakes the development of classifications for mental health care.The Governance Framework for the Development of the Australian Mental Health Care Classifications outlines the classification development, approva...
Tier 2 Non-Admitted Services 2022–23
There are three key publications that support the Tier 2 Non-Admitted Services Classification (Tier 2).
Tier 2 Non-Admitted Services 2023–24
The key publications that support the Tier 2 Non-Admitted Services Classification (Tier 2) are the Tier 2 Non-Admitted Services Definitions Manual and the Tier 2 Non-Admitted Services Compendium.
Review of the AR-DRG Case Complexity Process
This report presents the results of phase one of the project to develop Australian Refined Diagnosis Related Groups (AR-DRG)1 Version (V) 8.0. This phase focuses on the case complexity component of the classification that has not been reviewed for many years.
Mental health phase of care Inter-rater reliability (IRR) study - Final report
The Inter-rater reliability study final report was approved by the Pricing Authority in April 2017. The primary aims of the study were to test the inter-rater reliability of the mental health phase of care instrument, gather information about the clinicians' views of th...
Investigative review of classification systems for emergency care
This report includes the findings and recommendations from a project undertaken by Health Policy Analysis on classification systems for emergency care on behalf of th eIndependent Hospital Pricing Authority (IHPA).