01XC4ZB
Transfer Pudendal Nerve to Lumbar 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 | C Pudendal Nerve |
| Approach | 4 Percutaneous Endoscopic |
| Device | Z No Device |
| Qualifier | B Lumbar 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
Pudendal Nerve
Pudendal nerve transfer is a less common reconstructive procedure in which this nerve, which supplies sensory and motor innervation to the perineum, external genitalia, and pelvic floor muscles including the external anal and urethral sphincters, is used to restore continence or sexual function after pelvic trauma, radical pelvic surgery, or congenital anomalies. The pudendal nerve travels through Alcock's canal along the pelvic sidewall, so its surgical manipulation demands careful preservation of the surrounding vascular and ligamentous structures. In transfer procedures, a branch may be redirected to reinnervate a denervated sphincter or, conversely, another nerve may be coapted to a pudendal branch to restore lost pelvic floor function. Because outcomes affect continence and sexual sensation, precise fascicular mapping and documentation of the specific branch involved are important.
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: Lumbar Nerve
Lumbar Nerve refers to one of the five paired spinal nerves (L1-L5) that contribute to the lumbar and lumbosacral plexuses, supplying the lower abdominal wall, hip, and much of the lower limb. As a qualifier it identifies a lumbar-level spinal nerve as the procedure's target, distinguishing it from the thoracic nerves above and the sacral-derived nerves, such as the sciatic, that it helps form.
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.