Classification

ICD-10-AM is the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification. The ICD-10-AM disease component is based on the World Health Organisation (WHO) ICD-10. ICD-10-AM is used in conjunction with the Australian Classification of Health Interventions (ACHI) and the Australian Coding Standard (ACS) to reflect an accurate health episode of care.

The 4th edition of this classification was introduced for all discharges from 1st January 2005 and was selected as the best integrated coding scheme for diagnoses and procedures available internationally.

The 6th Edition of ICD10-AM/ACHI/ACS was used to code all discharges from 1st January 2009 to 31st December 2014.

The 8th Edition of ICD10-AM/ACHI/ACS was used to code all discharges from 1st January 2015 to 31st December 2019.

Ireland updated to the 10th Edition of ICD10-AM/ACHI/ACS for all discharges from 1st January 2020

Please see History of Coding in Ireland for full details

• ICD-10-AM - Is an alphanumeric coding scheme and is structured by body system and aetiology, and comprises three, four and five character categories. ICD-10-AM consists of a tabular list of diseases and accompanying index and has been modified in Australia by the National Centre for Classification in Health (NCCH) with assistance from clinicians and clinical coders. Close links are maintained with WHO to ensure that international compatibility is maintained.
• ACHI - Is a multi-axial classification structured by body system, site and procedure type. ACHI consists of a tabular list of procedures and accompanying index of seven digit codes
• ACS - These national standards are developed by the NCCH to provide guidance in the application of ICD-10-AM and ACHI codes. Standards are categorised by site and or body system according to the clinical specialty to which a disease or procedure relates.
• ICS - Irish Coding Standards are developed to complement the ACS, please click link to view.