ICD-10-PCS Billable Code

0MST4ZZ

Reposition Foot 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
OperationS Reposition
Body PartT Foot Bursa and Ligament, Left
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Moving to its normal location, or other suitable location, all or a portion of a body part

Procedure Overview

Reposition procedures move a bursa or, more often, a ligament from an abnormal location back to its correct anatomic position, or to another location that will let it function properly. A common scenario is surgical repositioning of a chronically dislocating patellar or biceps tendon-associated ligamentous structure, or realignment of a displaced ligament following trauma, where the tissue itself is healthy but sitting in the wrong place.

This differs from most other procedures in the family because the ligament or bursa is not cut out, replaced, or reinforced - it is detached, moved, and reattached or otherwise secured in its new position. Surgeons choose this approach when a structural malalignment, rather than tissue damage, is causing pain, instability, or abnormal joint mechanics, such as recurrent shoulder or kneecap dislocation. Restoring normal alignment allows the joint to track and load correctly, reducing repeat injury and improving comfort with movement.

Anatomy & Axis Detail

Foot Bursa and Ligament, Left

The left foot bursa and ligament group parallels the right-sided anatomy, comprising the plantar and interosseous ligaments and associated bursae that maintain arch support and joint alignment in the left foot. Reposition is performed when a ligament has migrated from its correct position, often due to trauma or as part of surgical correction of a foot deformity, with the surgeon restoring the tissue to its normal anatomic site. Given the density of ligamentous structures in the foot, careful surgical planning is required to identify and reposition the correct ligament without disturbing adjacent tendons or joints. This code is specific to the left foot, and documentation should clearly identify laterality along with the individual ligament addressed.

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

This code applies when the operative note describes moving a bursa or ligament to a new site and securing it there, using language such as "transposed," "relocated," or "repositioned." The coder should confirm the structure itself was not resected or supplemented with additional material during the move - only its location changed. A frequent mistake is coding Reposition when a ligament was actually released and reattached at its original insertion point after debridement, which may better reflect Repair. Coders should also verify the correct body part is selected based on the ligament's final anatomic location rather than its origin.

Commonly Confused With

RepairRepair is the operation most likely to be confused here, since both can involve reattaching tissue; the distinction is whether the structure is being fixed in its original position (Repair) or deliberately moved to a different one (Reposition).
ReplacementReplacement should not be selected unless the native ligament is removed and substituted with graft material, which is not the case in a pure repositioning procedure.
ReleaseRelease, found under a different root operation, applies when the goal is simply to free a ligament or bursa from surrounding scar tissue without relocating it.