S55.09 - Other specified injury of ulnar artery at forearm level S55.0 - Injury of ulnar artery at forearm level S55.09 - Other specified injury of ulnar artery at forearm level S55.091 - Other specified injury of ulnar artery at forearm level, right arm S55.092 - Other specified injury of ulnar artery at forearm level, left arm S55.099 - Other specified injury of ulnar artery at forearm level, unspecified arm