ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.8 > S06.89 > S06.899 S06.899 Other specified intracranial injury with loss of consciousness of unspecified duration Non-Billable/Non-Specific Codes S06.899A..., initial encounterS06.899D..., subsequent encounterS06.899S..., sequela