ICD-10-CM > S00-T88 > S20-S29 > S25 > S25.1 > S25.12 > S25.121 S25.121 Major laceration of right innominate or subclavian artery Non-Billable/Non-Specific Codes S25.121A..., initial encounterS25.121D..., subsequent encounterS25.121S..., sequela