ICD-10-CM > S00-T88 > S50-S59 > S55 > S55.1 > S55.10 S55.10 Unspecified injury of radial artery at forearm level Non-Billable/Non-Specific Codes S55.101Unspecified injury of radial artery at forearm level, right armS55.101A..., initial encounterS55.101D..., subsequent encounterS55.101S..., sequelaS55.102Unspecified injury of radial artery at forearm level, left armS55.102A..., initial encounterS55.102D..., subsequent encounterS55.102S..., sequelaS55.109Unspecified injury of radial artery at forearm level, unspecified armS55.109A..., initial encounterS55.109D..., subsequent encounterS55.109S..., sequela