ICD-10-PCS Billable Code

0MXP4ZZ

Transfer Knee Bursa and Ligament, Left to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemM Bursae and Ligaments
OperationX Transfer
Body PartP Knee Bursa and Ligament, Left
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

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 in this family move a bursa or ligament, or a portion of one, from its native location to a new site so it can take over the mechanical job normally performed by a different structure, without detaching its original blood and nerve supply. This is most often seen in tendon transfer surgery involving ligamentous tissue used to restore function after nerve injury, chronic tendon rupture, or joint instability where the original stabilizing structure can no longer do its job.

Because the tissue stays connected to its native blood supply, these procedures differ from a graft, which is fully detached and moved elsewhere. Surgeons choose this approach when a nearby ligament or bursal structure is healthy enough to be rerouted and can plausibly substitute for a damaged one, offering better long-term durability than an artificial replacement in select patients.

Anatomy & Axis Detail

Knee Bursa and Ligament, Left

On the left knee, the bursae and ligaments surrounding the joint, such as the pes anserine bursa and portions of the collateral ligament complex, cushion tendon movement and help stabilize the joint against varus and valgus stress. A Transfer procedure moves a segment of this tissue, preserving its own blood supply, to reinforce an adjacent structure, for example supporting patellar alignment or reinforcing a weakened capsular region following trauma or degenerative change. Because these structures lie close to the peroneal nerve and popliteal vessels on the posterolateral aspect, careful technique is required to protect these structures during mobilization. Documentation should specify the left-sided origin and the qualifier identifying the destination structure benefiting from the transferred tissue.

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.

Coding & Documentation

A code from this family applies when documentation clearly shows tissue being rerouted to a new location while remaining attached to its vascular pedicle, with the explicit intent of taking over another structure's function. The operative report should name both the origin site and the new destination, along with the functional deficit being addressed. Coders frequently misassign these cases as Transplantation, which requires the tissue to be completely freed from its original site, or as Repair, when the surgeon has simply reattached tissue back to its original position rather than relocating it to serve a new purpose.

Commonly Confused With

TransplantationThe closest source of confusion is Transplantation, distinguished only by whether the vascular supply is preserved (Transfer) or severed and reestablished at the new site (Transplantation).
ReattachmentReattachment is another frequent mix-up, used when a structure is put back in its original anatomic location rather than moved to substitute for a different one.