0SUT09Z
Supplement Knee Joint, Femoral Surface, Right to No Qualifier with Liner, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | S Lower Joints |
| Operation | U Supplement |
| Body Part | T Knee Joint, Femoral Surface, Right |
| Approach | 0 Open |
| Device | 9 Liner |
| Qualifier | Z 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, Femoral Surface, Right
The femoral surface of the right knee, comprising the rounded condyles of the distal femur that articulate with the tibial plateau and patella, is supplemented when focal cartilage defects from trauma or early degenerative change compromise the joint's gliding surface but do not yet warrant a full knee replacement. A cartilage graft, whether osteochondral autograft, allograft, or a synthetic scaffold, is placed onto the femoral condyle to recreate a smooth weight-bearing surface, since the femoral condyles concentrate enormous load during walking, running, and stair climbing. Because the knee has separate femoral and tibial articular surfaces, documentation must specify that the graft was applied to the femoral side, distinguishing it from tibial surface supplementation, which is coded separately.
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.