ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.2 > S06.2X > S06.2X6 S06.2X6 Diffuse traumatic brain injury with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving Non-Billable/Non-Specific Codes S06.2X6A..., initial encounterS06.2X6D..., subsequent encounterS06.2X6S..., sequela