ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.0 > S55.00 > S55.002 S55.002 Unspecified injury of ulnar artery at forearm level, left arm Non-Billable/Non-Specific Codes S55.002A..., initial encounterS55.002D..., subsequent encounterS55.002S..., sequela