S64.0 - Injury of ulnar nerve at wrist and hand level S64 - Injury of nerves at wrist and hand level S64.0 - Injury of ulnar nerve at wrist and hand level S64.00 - Injury of ulnar nerve at wrist and hand level of unspecified arm S64.01 - Injury of ulnar nerve at wrist and hand level of right arm S64.02 - Injury of ulnar nerve at wrist and hand level of left arm