The AIS is an anatomically-based injury severity scoring system. It classifies each injury by body region on a six point scale. The AIS is the system used to determine the ISS of the multiply injured patient.10
AIS classifications
The AIS classifies individual injuries by body region as follows:
- AIS 1 – Minor
- AIS 2 – Moderate
- AIS 3 – Serious
- AIS 4 – Severe
- AIS 5 – Critical
- AIS 6 – Maximal (currently untreatable)
The AIS version currently used in NSW is the AIS 2005 - Update 2008.11