ICD-10-PCS Billable Code

0LU94KZ

Supplement Trunk Tendon, Right to No Qualifier with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemL Tendons
OperationU Supplement
Body Part9 Trunk Tendon, Right
Approach4 Percutaneous Endoscopic
DeviceK Nonautologous Tissue 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

Trunk Tendon, Right

The right trunk tendons include structures such as the abdominal wall or paraspinal tendinous attachments that anchor major postural and core-stabilizing muscles to the axial skeleton. Supplement in this region is uncommon but may be used when a tendinous attachment has been weakened by chronic strain, prior surgery, or tumor resection, requiring reinforcement with graft material to restore load-bearing capacity. The trunk's broad, sheet-like tendinous structures differ from the discrete cord-like tendons of the limbs, so grafts here are often used to reinforce a wider area rather than bridge a focal gap. Precise documentation of the anatomic subregion and laterality is important given the trunk's broad surface area and multiple named tendon groups.

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.

Device: Nonautologous Tissue Substitute

Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.

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.