Traum subdr hem w LOC >24 hr w/o ret consc w surv, sequela

This code signifies a traumatic subdural hemorrhage where the patient experienced a loss of consciousness exceeding 24 hours and did not regain their baseline neurological status. The "S" at the end indicates that this is a sequela code, meaning it describes a residual condition or late effect of the initial injury.

Apply this code for patients presenting with long-term neurological deficits or complications directly attributable to a traumatic subdural hemorrhage that initially caused a prolonged coma. Documentation must clearly state the duration of unconsciousness, the failure to return to pre-injury conscious level, and that the patient survived the acute event.

• 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 traumatic subdural hemorrhage code would be used for the initial encounter.
• Always sequence this code after the primary diagnosis describing the specific neurological sequela (e.g., cognitive deficits, hemiplegia) resulting from the hemorrhage.