ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.3 > S06.30 > S06.303 S06.303 Unspecified focal traumatic brain injury with loss of consciousness of 1 hour to 5 hours 59 minutes Non-Billable/Non-Specific Codes S06.303A..., initial encounterS06.303D..., subsequent encounterS06.303S..., sequela