ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.2 > S06.2X > S06.2X5 S06.2X5 Diffuse traumatic brain injury with loss of consciousness greater than 24 hours with return to pre-existing conscious levels Non-Billable/Non-Specific Codes S06.2X5A..., initial encounterS06.2X5D..., subsequent encounterS06.2X5S..., sequela