01X64Z5
Transfer Radial Nerve to Median Nerve with No Device, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 1 Peripheral Nervous System |
| Operation | X Transfer |
| Body Part | 6 Radial Nerve |
| Approach | 4 Percutaneous Endoscopic |
| Device | Z No Device |
| Qualifier | 5 Median Nerve |
Operation Definition
Moving, without taking out, all or a portion of a body part to another location to take over the function of all or a portion of a body part
Procedure Overview
Transfer procedures on the peripheral nervous system move a nerve, still attached to its original blood and nerve supply at one end, to a new location so it can take over the function of a different, nonworking nerve. Nerve transfers are used after severe injuries, such as brachial plexus avulsions, when the original nerve supplying a muscle is damaged beyond repair but a healthy, less critical nerve nearby can be redirected to reinnervate that muscle instead. A common example is transferring a branch of the spinal accessory nerve to the suprascapular nerve to restore shoulder function after a brachial plexus injury.
Because the donor nerve is not cut free entirely but repositioned to connect with a different target, these procedures differ from a graft, which uses a separate, disconnected piece of tissue to bridge a gap. Transfer is chosen specifically when restoring the original damaged nerve directly is not feasible.
Anatomy & Axis Detail
Radial Nerve
Radial nerve transfer redirects fascicles or branches of this predominantly motor extensor nerve, commonly a triceps branch, to reinnervate targets like the axillary nerve for shoulder abduction or, in reverse, to receive innervation when its own distal branches to wrist and finger extensors have been injured. The radial nerve travels through the spiral groove of the humerus and is vulnerable to injury from fractures at that level, which can leave functioning proximal fascicles available as donors even when distal segments are disrupted. Selecting a triceps or other expendable branch preserves elbow extension while providing axons for a more functionally critical deficit elsewhere. As with other upper extremity transfers, the coded body part reflects the specific radial nerve segment used, and outcomes hinge on the distance the regenerating axons must travel to the new target.
Approach: Percutaneous Endoscopic
Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.
Qualifier: Median Nerve
The Median Nerve travels through the carpal tunnel to supply thumb-side hand muscles and sensation to the thumb and adjacent fingers, and is the nerve most often affected in carpal tunnel syndrome. As a qualifier it distinguishes this nerve from the ulnar nerve, its medial-hand counterpart, and the radial nerve, which serves the dorsal forearm and hand instead.
Coding & Documentation
The operative note needs to name both the donor nerve being moved and the recipient nerve or muscle it is being connected to, since the body part value coded reflects the nerve being transferred, not the target. A frequent coding error is mistaking a nerve transfer for a nerve graft repair; the distinguishing detail is whether the donor nerve retains its native blood supply and proximal attachment (Transfer) or is a free segment used to bridge a gap in a different nerve (Repair or Replacement). Coders should also check whether the transferred nerve is being coapted directly to the recipient nerve or routed through a graft, which can mean an additional code is warranted.