ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.3 > S06.30 > S06.304 S06.304 Unspecified focal traumatic brain injury with loss of consciousness of 6 hours to 24 hours Non-Billable/Non-Specific Codes S06.304A..., initial encounterS06.304D..., subsequent encounterS06.304S..., sequela