Prim blst inj brn, NEC LOC >24 hr w/o ret consc w surv, init

This code describes a severe traumatic brain injury resulting from a primary blast event, where the patient experiences a coma or vegetative state lasting longer than 24 hours. Crucially, the patient has not regained their baseline neurological function by the time of discharge or transfer, indicating significant and persistent neurological impairment.

Apply this code for patients who have sustained a primary blast injury to the brain, presenting with prolonged loss of consciousness exceeding 24 hours, and who remain in a state of altered consciousness (e.g., vegetative state, minimally conscious state) upon initial assessment or discharge from acute care. Documentation must explicitly state the blast etiology, duration of unconsciousness, and lack of return to pre-injury conscious level.

• Ensure documentation clearly specifies "primary blast injury" as the mechanism of trauma.
• Verify the duration of loss of consciousness is explicitly stated as "greater than 24 hours" and that the patient has not returned to their pre-existing conscious level.
• This code is for the "initial encounter," meaning the period of active treatment for the injury.