AR-DRG classification system

The Australian Refined Diagnostic Related Group (AR‑DRG) classification system is a patient classification system that provides a clinically meaningful way of relating the types of patients treated in a hospital to the resources required to treat patients. The system consists of approximately 700 patient classifications with each patient being classified based on their diagnoses, surgical procedures performed, and other routinely collected data.

The AR‑DRG classification system enables hospital procedures to be measured by linking characteristics of a patient’s treatment with the services provided. The system is of a very high standard and is currently being used in several countries in the Middle East, Asia and Europe.

IHPA owns the intellectual property of the AR‑DRG classification system and supports its ongoing development and distribution internationally. It does so by entering into licencing arrangements with interested parties.

The system is comprised of the:

  • 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)
  • AR-DRG Definitions Manual.

Users of the classification system include clinical coders, clinicians, researchers, epidemiologists, public health officials, state and territory health agencies and health funds.

Available licences

Product purchase

For a full list of available products, please visit the Products page. Products may be purchased via the AR-DRG Classification System Product Sales website.

Contact information

All enquiries regarding Electronic Code Lists should be made to Lane Print.

All enquiries regarding Country licences and Software developer licences should be made to the licencing team via the contact information below:
Email: classification.licensing [at]
Phone: +61 2 8215 1100