ICD-10-PCS Billable Code

0LU60JZ

Supplement Lower Arm and Wrist Tendon, Left to No Qualifier with Synthetic Substitute, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemL Tendons
OperationU Supplement
Body Part6 Lower Arm and Wrist Tendon, Left
Approach0 Open
DeviceJ Synthetic Substitute
QualifierZ No Qualifier

Operation Definition

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

Procedure Overview

Tendon supplement procedures reinforce or augment a weakened or torn tendon using a patch or graft rather than replacing the tendon outright. The added material, whether a strip of the patient's own tissue, tissue from a donor, or a synthetic mesh, is layered onto or into the existing tendon to restore its structural strength. Surgeons turn to this approach when a tendon is intact enough to preserve but too degenerated or thin to hold a repair on its own.

Common settings include rotator cuff surgery, where a graft is placed over a repaired cuff tendon to reduce re-tear risk, and reinforcement of the Achilles or patellar tendon after chronic tendinosis has thinned the tissue. The goal is to give the native tendon extra load-bearing capacity while it heals, rather than to substitute for missing tendon.

Recovery typically involves a period of immobilization followed by graduated physical therapy, since the reinforced tendon still needs to regain flexibility and strength over months.

Anatomy & Axis Detail

Lower Arm and Wrist Tendon, Left

On the left, the lower arm and wrist tendons govern fine motor control of the hand through a crowded arrangement of flexor and extensor structures traveling through synovial sheaths and retinacula. Supplement becomes necessary when a tendon, often an extensor tendon overlying the dorsal wrist or a flexor tendon near the wrist crease, has sustained a laceration or attritional rupture leaving a tissue gap that cannot be closed primarily. Graft material bridges this gap while preserving the smooth gliding surface essential for tendon excursion beneath the retinaculum. Postoperative function depends heavily on precise graft tensioning, and coders should confirm laterality and the specific tendon treated given how many distinct structures share this compact region.

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.

Device: Synthetic Substitute

Synthetic Substitute designates a device made from manufactured, non-biologic material, such as mesh or prosthetic components, used to replace or augment a body part. It is distinguished from the two tissue substitute categories by its artificial composition, which carries different considerations for integration and long-term durability than biologic grafts.

Coding & Documentation

Assigning Supplement requires operative documentation stating that native tendon tissue remained in place and was reinforced with added material, not excised and replaced. The operative note should specify the material used (autograft, allograft, or synthetic) and its anatomical placement, since the seventh-character device value depends on this.

A frequent coding error is confusing Supplement with Repair when a surgeon simply oversews a small tear without adding graft material, or with Replacement when the graft entirely substitutes for a resected segment of tendon. Coders should also confirm the specific tendon involved, since the Tendons body system in ICD-10-PCS groups by region rather than by individual named tendon, and imprecise documentation can lead to selecting the wrong body part value.

Commonly Confused With

RepairSupplement is most often confused with Repair, which is used when a torn tendon is sutured back together without any added reinforcing material.
ReplacementIt is also confused with Replacement, which applies only when damaged tendon tissue is physically taken out and a substitute put in its place.