Summary & Overview
CPT 27443: Knee Reconstruction with Partial Synovectomy and Debridement
CPT code 27443 represents a knee reconstructive surgery that repairs defects of the femoral condyles or tibial plateaus and includes a partial synovectomy and debridement to reduce pain and improve gait. Nationally, this procedure is clinically significant because it addresses degenerative or traumatic joint surface damage that can impair mobility and quality of life, and it may affect surgical utilization patterns, facility resource use, and payer coverage considerations.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical intent of the code, common service settings, and the primary payers relevant to coverage and claims adjudication. The publication also provides benchmarking context and policy and reimbursement updates where available.
The report summarizes typical billing practice and service-line implications for orthopedic surgery and ambulatory procedural care. It highlights what to expect in terms of clinical documentation needs and coding context, and it directs readers to sections that cover modifiers, related procedure codes, and coding nuances. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 27443 describes a surgical procedure to reconstruct defects of the femoral condyles or tibial plateaus, combined with a partial synovectomy and knee debridement intended to relieve pain and improve gait. The procedure involves restoring articular surface integrity in the knee joint and removing inflamed synovium and damaged tissue.
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Service type: Orthopedic reconstructive knee surgery with synovectomy and debridement
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Typical site of service: Hospital operating room or ambulatory surgery center
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Clinical & Coding Specifications
Clinical Context
A 62-year-old ambulatory patient with progressive medial compartment osteoarthritic degeneration presents with increasing knee pain, mechanical catching, and an antalgic gait limiting activities of daily living. Conservative measures including physical therapy, NSAIDs, intra-articular corticosteroid injections, and bracing have failed to provide durable relief. Preoperative evaluation includes weight-bearing radiographs demonstrating focal femoral condyle and tibial plateau articular surface defects, routine labs, medical clearance, and informed consent for joint preservation surgery.
In the operating room under regional or general anesthesia, the orthopedic surgeon performs diagnostic arthroscopy for intra-articular assessment, then proceeds to open or arthroscopically-assisted reconstruction of the femoral condyle and/or tibial plateau defects. The procedure includes debridement of nonviable cartilage, contouring and grafting or resurfacing of focal defects, and a partial synovectomy to remove inflamed synovial tissue. Hemostasis and irrigation are achieved, and the incision is closed. Postoperative care includes pain control, thromboprophylaxis as indicated, early range-of-motion exercises, and a plan for progressive weight-bearing with physical therapy to improve gait and function.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Procedure performed as scheduled (no modifier) | Rarely used on claims; typically omitted when standard reporting is intended. |