ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.0 > S55.09 S55.09 Other specified injury of ulnar artery at forearm level Non-Billable/Non-Specific Codes S55.091Other specified injury of ulnar artery at forearm level, right armS55.091A..., initial encounterS55.091D..., subsequent encounterS55.091S..., sequelaS55.092Other specified injury of ulnar artery at forearm level, left armS55.092A..., initial encounterS55.092D..., subsequent encounterS55.092S..., sequelaS55.099Other specified injury of ulnar artery at forearm level, unspecified armS55.099A..., initial encounterS55.099D..., subsequent encounterS55.099S..., sequela