ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.0 > S55.01 S55.01 Laceration of ulnar artery at forearm level Non-Billable/Non-Specific Codes S55.011Laceration of ulnar artery at forearm level, right armS55.011A..., initial encounterS55.011D..., subsequent encounterS55.011S..., sequelaS55.012Laceration of ulnar artery at forearm level, left armS55.012A..., initial encounterS55.012D..., subsequent encounterS55.012S..., sequelaS55.019Laceration of ulnar artery at forearm level, unspecified armS55.019A..., initial encounterS55.019D..., subsequent encounterS55.019S..., sequela