ICD-10-CM > S00-T88 > S40-S49 > S45 > S45.9 > S45.91 > S45.912 S45.912 Laceration of unspecified blood vessel at shoulder and upper arm level, left arm Non-Billable/Non-Specific Codes S45.912A..., initial encounterS45.912D..., subsequent encounterS45.912S..., sequela