ICD-10-CM > S00-T88 > S10-S19 > S15 > S15.0 > S15.00 > S15.009 S15.009 Unspecified injury of unspecified carotid artery Non-Billable/Non-Specific Codes S15.009A..., initial encounterS15.009D..., subsequent encounterS15.009S..., sequela