01Q50ZZ
Repair Median Nerve to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 1 Peripheral Nervous System |
| Operation | Q Repair |
| Body Part | 5 Median Nerve |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Restoring, to the extent possible, a body part to its normal anatomic structure and function
Procedure Overview
This family covers restoring a peripheral nerve to as close to its normal structure and function as possible after it has been cut, torn, or otherwise physically damaged, using suture repair or direct approximation of the nerve ends. It is the primary approach when a nerve laceration is found from a knife wound, glass injury, iatrogenic surgical injury, or a fracture that has sheared through the nerve.
The surgeon aligns the cut nerve ends under magnification, matching the internal fascicles as precisely as possible, and sutures them together so the nerve can regenerate along its original pathway. Timing matters clinically, since nerves repaired soon after injury generally recover better than those repaired after prolonged delay, though repair can still be attempted later in appropriate cases.
Outcomes depend on the nerve involved, the distance the injury is from the muscles or skin it serves, and how cleanly the nerve ends can be matched, but the goal is always to reestablish continuity using the patient's own nerve tissue.
Anatomy & Axis Detail
Median Nerve
The median nerve descends through the arm alongside the brachial artery, passes through the carpal tunnel at the wrist, and provides motor function to the thumb's thenar muscles along with sensation to the thumb, index, middle, and part of the ring finger. Repair is typically performed for lacerations at the wrist or forearm from sharp trauma, iatrogenic injury during carpal tunnel or tendon surgery, or penetrating wounds, using microsurgical suture repair or nerve grafting depending on the extent of the defect. Because the median nerve's motor branch to the thenar muscles is critical for thumb opposition, repair site and technique directly affect hand function recovery. The nerve's close association with the flexor tendons at the wrist also means associated tendon injury is frequently addressed in the same operative setting.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Coding & Documentation
Documentation supporting this code should describe direct suture of nerve ends or another technique that reconnects the nerve's own tissue without adding graft material. The note should identify which specific nerve was repaired and the mechanism of injury, since that context often appears in related trauma documentation.
A common mistake is assigning Repair when the surgeon actually bridged a gap with a nerve graft or synthetic conduit, which belongs under Replacement or Supplement instead of Repair. Another frequent error is coding Repair for a procedure that was really a Release, when the nerve was found intact and simply freed from surrounding scar rather than physically damaged and sutured.