Final answer:
When a patient sustains multiple head injuries along with coma, the coma should be assigned ONCE to the AIS descriptor that best represents the most severe level of head injury.
Step-by-step explanation:
When a patient sustains multiple head injuries along with coma, the coma should be assigned ONCE to the AIS descriptor that best represents the most severe level of head injury. The AIS (Abbreviated Injury Scale) is a tool used to classify and code injuries based on their severity. It consists of six Injury Severity Scores (ISS) which represent different body regions and injury types. In the case of multiple head injuries, the coma should be assigned to the highest AIS score for head injury.