CPT code 29866 represents arthroscopic knee cartilage repair with harvesting and transplantation of healthy cartilage to replace damaged tissue. This procedure is a minimally invasive orthopedic surgery used to treat focal chondral defects and preserve joint function; it has implications for surgical outcomes, post-operative rehabilitation, and payer coverage policies nationwide. The code is important for hospitals and ambulatory surgery centers that manage knee preservation and restorative cartilage procedures.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for cartilage repair, typical sites of service, common billing modifiers, and payer coverage considerations. The publication summarizes national benchmarks where available, highlights relevant policy and coverage themes affecting reimbursement and prior authorization, and outlines how this code aligns with related surgical services.

This report is intended for revenue cycle professionals, orthopedic surgeons, clinical coders, and policy analysts seeking a concise reference on billing, clinical purpose, and payer landscape for arthroscopic knee cartilage transplantation under CPT code 29866. Data not available in the input is noted where applicable.