Emergency Medicine · Trauma Surgery

Injury Severity Score (ISS) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Head neck (AIS)

AIS

Allowed range: 0–6 AIS

Face (AIS)

AIS

Allowed range: 0–6 AIS

Chest (AIS)

AIS

Allowed range: 0–6 AIS

Abdomen (AIS)

AIS

Allowed range: 0–6 AIS

Extremity (AIS)

AIS

Allowed range: 0–6 AIS

External (AIS)

AIS

Allowed range: 0–6 AIS

Result

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Clinical inputs

Head neck (AIS)Accepted range: 0 to 6
Face (AIS)Accepted range: 0 to 6
Chest (AIS)Accepted range: 0 to 6
Abdomen (AIS)Accepted range: 0 to 6
Extremity (AIS)Accepted range: 0 to 6
External (AIS)Accepted range: 0 to 6

Primary source

Baker SP et al. The injury severity score: a method for describing patients with multiple injuries and evaluating emergency care. J Trauma. DOI: 10.1097/00005373-197403000-00003. PMID: 4814394. Scope: ISS equals the sum of squares of the three highest AIS region scores (0–6) among six body regions. (1974)

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