01XG0ZG
Transfer Tibial Nerve to Tibial Nerve with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 1 Peripheral Nervous System |
| Operation | X Transfer |
| Body Part | G Tibial Nerve |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | G Tibial 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
Tibial Nerve
Tibial nerve transfer involves the larger terminal branch of the sciatic nerve, which runs through the popliteal fossa and posterior compartment of the leg to supply the calf muscles responsible for plantarflexion and sensation to the sole of the foot. Transfer procedures at this level are used to restore function after peroneal nerve injury, where a branch of the tibial nerve supplying a redundant or less critical muscle, such as one head of gastrocnemius, is redirected to reinnervate the anterior compartment and restore foot dorsiflexion, correcting foot drop. The relatively short distance between donor and recipient sites in the leg favors better recovery than more proximal transfers. Precise identification of the donor branch is necessary to avoid compromising the tibial nerve's contribution to normal gait push-off.
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.
Qualifier: Tibial Nerve
The Tibial Nerve, one of the two terminal branches of the sciatic nerve, runs down the posterior leg to supply the calf muscles responsible for plantar flexion and sensation to the sole of the foot. As a qualifier it distinguishes this nerve from the common peroneal nerve, the sciatic's other branch, which instead governs dorsiflexion and the anterolateral leg.
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.