Final answer:
Whole body blast injuries are given an AIS code of 6 and are placed in the 'External' body region for the Injury Severity Score (ISS).
Step-by-step explanation:
Whole body blast injuries are assigned an Abbreviated Injury Scale (AIS) code of 6, which indicates a maximum severity injury that is currently untreatable. These injuries are coded to the 'External' body region within the Injury Severity Score (ISS). The ISS is a medical score to assess trauma severity. It scores injuries in nine body regions and is used to predict mortality, morbidity, and hospitalization time after trauma. These regions include head, face, chest, abdomen, extremities, external, etc. Each injury is assigned an AIS and the three most severely injured body regions have their scores squared and added to produce the ISS.