ICD-10-CM > S00-T88 > S20-S29 > S25 > S25.3 > S25.30 > S25.309 S25.309 Unspecified injury of unspecified innominate or subclavian vein Non-Billable/Non-Specific Codes S25.309A..., initial encounterS25.309D..., subsequent encounterS25.309S..., sequela