Traum cereb edema w LOC >24 hr w/o ret consc w surv, sequela

This code signifies brain swelling due to trauma, resulting in a prolonged coma (loss of consciousness exceeding 24 hours) from which the patient does not fully recover to their prior cognitive state. It indicates a severe, persistent neurological deficit following the traumatic brain injury.

Apply this code when documentation clearly states traumatic cerebral edema and a loss of consciousness lasting over 24 hours, with the patient surviving but experiencing permanent neurological impairment. This is used for the sequela of the injury, after the acute phase has passed.

• Ensure documentation explicitly states "loss of consciousness greater than 24 hours" and "without return to pre-existing conscious level."
• This code is for the sequela of the injury; an acute injury code would be used for the initial encounter.
• Always sequence this code after the primary sequela code, if applicable, or as the primary diagnosis if it's the reason for the current encounter.