Independent Health and Aged Care Pricing Authority (IHACPA)

A map between the supplementary codes for chronic conditions (Chapter 21 Codes for special purposes, U78-U88 Supplementary codes for chronic conditions) to the equivalent codes in the disease chapters of ICD-10-AM.

Provides the link between two editions of the classification.
Backward maps provides equivalent code for new codes in the newer edition.
Forward maps provides equivalent codes for deleted codes in the newer edition.
The maps provide an equivalent code that best matches the concept from a clinical perspective (called historical maps) as well as an AR-DRG perspective (called DRG maps previously logical maps). Sometimes the historical map and the DRG map are the same code.

Provides the link between two editions of the classification. Backward maps – provides equivalent code for new codes in the newer edition Forward maps – provides equivalent codes for deleted codes in the newer edition The maps provide an equivalent code that best matches the concept from a clinical perspective (called historical maps) as well as an AR-DRG perspective (called DRG maps – previously logical maps). Sometimes the historical map and the DRG map are the same code. Multiple historical maps are provided where there are multiple codes that can be mapped from one edition to the next. The first historical map provided in the mapping table is the closest match to code descriptor, alphabetic index entries or relevant coding conventions. To map between multiple editions, users need to use all the mapping tables between these editions. For example, to map between Tenth Edition and Twelfth Edition, users need to use the mapping tables for both Eleventh Edition and Twelfth Edition. Codes need to be mapped from Tenth Edition to Eleventh Edition, then from Eleventh Edition to Twelfth Edition.

Provides the map between MBS item numbers to the equivalent stem code in ACHI Twelfth Edition. ACHI is based on the MBS and further expanded to cover interventions not part of the MBS such as dental, allied health interventions, cosmetic surgery. It uses a numeric coding scheme structured by body system, site and intervention type. ACHI codes have seven numeric digits. For most codes the first five digits are the MBS item number, followed by a two-digit extension.