Typical injury severity score (ISS) calculation in a 20 kg child with injuries sustained in fall from tree
| ISS body region (column 1) | Injury (column 2) | AIS code + score (column 3) | Highest AIS in body region (column 4) | AIS 2 (column 5) |
|---|---|---|---|---|
| * In column 3 the bold numbers are the highest abbreviated injury score (AIS) coded in each region. The three body regions with the highest scores are chosen (column 4); these AIS code values are then squared (column 5) and then summed to give the ISS. Note: it would be acceptable to use values for “abdomen” or “face” in place of “external”. | ||||
| Head/neck | Fracture vault of skull | 150400–2 | ||
| Loss of consciousness for 3 min | 160202–2 | |||
| Cerebral contusion | 140602–3* | 3 | 9 (32) | |
| Face | Bruised cheek | 210402–1* | 1 | |
| Chest | No injury | — | ||
| Abdomen | Bruised abdominal wall | 510402–1* | 1 | |
| Extremities | Fracture ulna closed | 753202–2* | ||
| Fracture radius closed | 752802–2* | 2 | 4 (22) | |
| Knee sprain | 750826–2* | |||
| External | Abrasions | 910200–1* | 1 | 1 (11) |
| ISS=14 (1+4+9) | ||||