Prim blst inj brain, NEC LOC >24 hr with ret consc lev, init

This code signifies a severe traumatic brain injury resulting from a primary blast wave, where the patient experienced a loss of consciousness exceeding 24 hours. Crucially, the patient's neurological status improved to their baseline level of consciousness following this prolonged period of unconsciousness. This represents the initial treatment encounter for this specific injury.

Apply this code when documentation clearly states a primary blast injury to the brain, prolonged loss of consciousness (LOC) greater than 24 hours, and a subsequent return to the patient's pre-injury conscious level. This code is appropriate for the initial hospitalization or treatment for this specific blast-related TBI.

• Ensure documentation explicitly states "primary blast injury" and not other mechanisms of TBI.
• Verify the duration of loss of consciousness is greater than 24 hours and that the patient returned to their pre-existing conscious level.
• This "initial encounter" code is only used for the period of active treatment for the injury. Subsequent care would use a "subsequent encounter" code.