ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.0 > S55.00 > S55.001 S55.001 Unspecified injury of ulnar artery at forearm level, right arm Non-Billable/Non-Specific Codes S55.001A..., initial encounterS55.001D..., subsequent encounterS55.001S..., sequela