ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.6 > S06.6X > S06.6X6 S06.6X6 Traumatic subarachnoid hemorrhage with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving Non-Billable/Non-Specific Codes S06.6X6A..., initial encounterS06.6X6D..., subsequent encounterS06.6X6S..., sequela