ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.0 > S55.01 > S55.012 S55.012 Laceration of ulnar artery at forearm level, left arm Non-Billable/Non-Specific Codes S55.012A..., initial encounterS55.012D..., subsequent encounterS55.012S..., sequela