Unsp intcrn injury w LOC >24 hr w/o ret consc w surv, init

This code signifies a severe, uncharacterized head injury resulting in a prolonged coma, specifically loss of consciousness exceeding 24 hours, from which the patient has not recovered to their baseline cognitive state. The patient has survived the initial injury. It indicates a significant and lasting neurological deficit following a traumatic brain event.

Apply this code for patients presenting with an intracranial injury where the specific type (e.g., concussion, contusion, hemorrhage) is not documented, but the duration of unconsciousness is clearly stated as greater than 24 hours, and the patient's conscious level remains below their pre-injury baseline upon discharge or transfer. Documentation must explicitly state the duration of unconsciousness and the patient's survival.

• Ensure documentation explicitly states "loss of consciousness greater than 24 hours" and "without return to pre-existing conscious level."
• This code is for an "initial encounter," meaning the patient is receiving active treatment for the injury.
• Do not use if the specific type of intracranial injury (e.g., subdural hemorrhage, cerebral contusion) is documented; instead, code the specific injury.