ICD-10-CM > S00-T88 > S00-S09 > S06 > S06.8 > S06.82 > S06.824 S06.824 Injury of left internal carotid artery, intracranial portion, not elsewhere classified with loss of consciousness of 6 hours to 24 hours Non-Billable/Non-Specific Codes S06.824A..., initial encounterS06.824D..., subsequent encounterS06.824S..., sequela