ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.9 > S55.91 > S55.912 S55.912 Laceration of unspecified blood vessel at forearm level, left arm Non-Billable/Non-Specific Codes S55.912A..., initial encounterS55.912D..., subsequent encounterS55.912S..., sequela