CPT code 64858 denotes surgical repair of the sciatic nerve, a specialized operative intervention to restore continuity or function after traumatic injury, lesions, infection, or related causes. This code is important nationally because sciatic nerve injuries can produce significant morbidity — including pain, motor deficits, and loss of function — and surgical repair decisions affect patient outcomes and resource use. Key payers covered in typical analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find clinical context for when sciatic nerve repair is billed, an overview of expected sites of service and service type, and payer coverage considerations. The publication outlines benchmarks and utilization patterns where available, summarizes relevant policy elements affecting payment and medical necessity determinations, and highlights coding and billing considerations specific to operative peripheral nerve repair. The material is intended for billing professionals, surgical teams, and policy analysts seeking a concise reference on CPT code 64858 within a national payer landscape. Data not available in the input is identified where applicable.