ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.9 > S06.9X > S06.9X2 S06.9X2 Unspecified intracranial injury with loss of consciousness of 31 minutes to 59 minutes Non-Billable/Non-Specific Codes S06.9X2A..., initial encounterS06.9X2D..., subsequent encounterS06.9X2S..., sequela