01SA3ZZ
Reposition Lumbosacral Plexus to No Qualifier with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 1 Peripheral Nervous System |
| Operation | S Reposition |
| Body Part | A Lumbosacral Plexus |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Moving to its normal location, or other suitable location, all or a portion of a body part
Procedure Overview
This family covers procedures that move a peripheral nerve back to its normal anatomical course, or to a different suitable location, without cutting across the nerve's continuity. A nerve can end up out of place from a traumatic injury, a compressive mass, scar tissue, or a congenital anomaly, and repositioning it relieves the resulting pain, numbness, or weakness by taking pressure off the nerve or restoring its natural path. Ulnar nerve transposition at the elbow for cubital tunnel syndrome is a familiar example, where the nerve is freed and rerouted in front of the medial epicondyle so it no longer catches or stretches with elbow motion.
Because the nerve itself is not removed, replaced, or rerouted to do another nerve's job, these operations are aimed purely at correcting the nerve's position, distinguishing them from repairs that restore a severed nerve's continuity.
Anatomy & Axis Detail
Lumbosacral Plexus
The lumbosacral plexus is the extended network formed where the lumbar plexus roots join the sacral roots from L4 through S4, coursing along the posterior pelvic wall to give rise to the sciatic and other nerves supplying the lower limb. Its reposition is called for in complex pelvic trauma, sacral or presacral tumor resection, or severe fibrosis that has fixed the plexus against the pelvic sidewall, sacroiliac region, or piriformis muscle. Because this plexus spans both the lumbar and sacral segments and sits deep within the pelvis near major vessels and the ureter, mobilizing and relocating it is one of the more extensive peripheral nerve procedures, often performed jointly with pelvic or spine surgeons. Preserving the plexus's continuity during repositioning is critical, since it ultimately governs motor and sensory function throughout the leg and foot.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Coding & Documentation
Documentation needs to describe the nerve moved, the reason it was out of position (entrapment, tumor mass effect, dislocation, prior injury), and where it was relocated to. Operative notes for transposition procedures should make clear that the nerve was freed and rerouted, not decompressed in place, since a simple release of surrounding tissue without moving the nerve belongs to a different root operation. A common assignment error is coding an in-situ decompression (such as a straightforward carpal tunnel release) as Reposition when the nerve was only freed from surrounding tissue and not physically relocated - that scenario is Release, not Reposition. Coders should also confirm the body part value matches the specific nerve or plexus segment named in the note, since peripheral nerve values are granular by nerve name and laterality.