ICD-10-PCS Billable Code

0SUC09Z

Supplement Knee Joint, Right to No Qualifier with Liner, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemS Lower Joints
OperationU Supplement
Body PartC Knee Joint, Right
Approach0 Open
Device9 Liner
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

Supplement procedures add biological or synthetic material to reinforce or augment a lower joint that is still structurally present but needs additional support. Ligament reconstruction, such as an ACL or PCL graft in the knee, is the classic example, along with labral augmentation in the hip or cartilage grafting. Unlike replacement, the native joint stays in place; the surgery strengthens a weakened or torn portion of it.

Grafts can come from the patient's own tissue, a donor, or synthetic material, and the choice often depends on age, activity level, and the structure being reinforced. These procedures are common after athletic injuries, aiming to restore stability so the joint can withstand normal or athletic loads again.

Anatomy & Axis Detail

Knee Joint, Right

The right knee joint is the hinge-type articulation formed by the femur, tibia, and patella, stabilized by the cruciate and collateral ligaments and cushioned by the menisci. Supplement procedures here place graft or synthetic material to reinforce existing joint structures, such as meniscal allograft, cartilage scaffold implants, or bone graft used to fill a focal chondral or osseous defect, distinct from total or partial knee replacement, which excises and substitutes the joint surfaces themselves. This approach is common in younger, active patients with isolated cartilage lesions or meniscal deficiency where preserving native joint mechanics is preferred over arthroplasty. Because the knee is a complex, multi-compartment joint, documentation should specify which structure, meniscus, cartilage surface, or ligament-adjacent bone, received the reinforcing material to support accurate code selection.

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: Liner

A Liner in Medical and Surgical procedures is an insert placed within a prosthetic component, commonly the polyethylene or ceramic sleeve fitted inside an acetabular cup during hip arthroplasty, providing a wear surface between the shell and femoral head. It is typically part of a modular replacement rather than the entire joint substitute. It differs from a Resurfacing Device, which caps existing bone surfaces rather than lining an implanted shell.

Coding & Documentation

Coders assign Supplement when documentation shows material was added to reinforce an existing body part rather than substitute for it, which requires confirming the native structure was not removed. Graft type, whether autograft, allograft, or synthetic, factors into the device value. A recurring mistake is coding a ligament reconstruction as Repair when a formal graft was placed, or conversely coding Supplement when the graft actually replaced a joint surface rather than reinforcing intact tissue.

Commonly Confused With

RepairSupplement is most often confused with Repair, since both can appear in operative notes for ligament work; the distinction is whether material was grafted in to reinforce the structure versus simply resutured or tightened without added tissue.
ReplacementIt also borders Replacement when a graft is extensive enough to functionally substitute for the original structure rather than reinforce it.