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