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Excision Knee Joint, Right to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | S Lower Joints |
| Operation | B Excision |
| Body Part | C Knee Joint, Right |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
This family describes cutting away a portion of a lower joint's tissue - synovium, labrum, meniscus remnants, or other intra-articular structures - without replacing what is removed. Partial meniscectomy in the knee, synovial biopsy for diagnosing arthritis, and trimming of frayed labral tissue in the hip are typical examples. The intent is to remove only the diseased, torn, or excess portion while leaving the rest of the joint intact and functional.
These procedures are performed both to relieve mechanical symptoms, such as a torn meniscus catching or locking the knee, and to obtain tissue samples that help diagnose conditions like rheumatoid arthritis or gout. Many are done arthroscopically through small portals, though open excision is still used for larger or harder-to-reach lesions.
Because only part of the structure is taken, the joint typically retains its normal range of motion afterward, distinguishing this recovery path from procedures that fuse or replace the joint entirely.
Anatomy & Axis Detail
Knee Joint, Right
The right knee joint is the tibiofemoral and patellofemoral articulation stabilized by the cruciate and collateral ligaments and cushioned by the medial and lateral menisci, and it is one of the most frequently operated joints in the body. Excision here can involve removal of diseased synovium in inflammatory arthritis, resection of osteophytes or loose bodies, partial meniscectomy, or removal of a symptomatic plica or other soft tissue lesion, most often performed arthroscopically through small portal incisions. The joint's superficial location makes access relatively straightforward compared to axial joints, but the density of intra-articular structures, including the menisci, cruciate ligaments, and articular cartilage, means the surgeon must be precise about which tissue is removed so that stability and cartilage-bearing surfaces are preserved wherever possible.
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.
Coding & Documentation
Coders should confirm the documentation describes cutting out a portion of joint tissue, such as a partial meniscectomy, labral debridement, or synovial biopsy, with the remainder of the body part left in place. Pathology reports listing joint tissue specimens are strong supporting evidence. A frequent error is coding a complete meniscectomy or total synovectomy as Excision when the operative note actually describes removal of the entire structure, which some coding guidance treats as Resection depending on how the body part is defined for that joint. Another common pitfall is confusing a biopsy taken for diagnostic purposes with a therapeutic debridement, since both use Excision but may need different qualifiers indicating diagnostic intent.