CPT code 20957 denotes a vascularized metatarsal bone graft: harvesting metatarsal bone with its arterial and venous supply and transplanting it to reconstruct a major bone defect with restoration of blood flow. This procedure supports faster incorporation and bone healing at complex recipient sites and is important in limb salvage, reconstructive orthopedic and podiatric surgery. Nationally, the code matters for hospitals, surgical specialists, and payers because it represents a technically complex, resource-intensive reconstructive service with implications for coverage policy and clinical pathways.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will get a concise clinical definition and service context, a summary of typical sites of service, and an outline of common billing considerations. The publication provides benchmarks where available, discusses relevant coverage and policy themes, and situates the procedure within clinical practice for major bone defect reconstruction. It highlights the clinical rationale for vascularized grafting and what clinicians and billing professionals should expect when documenting and coding this procedure.

Data not available in the input: Associated taxonomies, specific ICD-10 diagnoses, related codes, and payer-specific reimbursement rates.