CPT code 35231 denotes surgical repair of an abnormal or injured neck blood vessel using a vein graft, a specialized vascular reconstruction performed to re-establish arterial continuity and flow in cervical vessels. Nationally, this procedure is significant due to its role in preventing ischemic complications and managing traumatic or pathologic vascular lesions in the neck. Payers commonly covering this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find benchmarks and contextual information relevant to coverage and utilization, including typical sites of service (hospital operating room or inpatient surgical suite), clinical indications, and procedural context. The publication summarizes coding specifics for billing and documentation, outlines common payer considerations, and highlights where policy updates or prior authorization practices can affect access. It also provides clinical context about when a vein graft is preferred over primary repair or prosthetic conduit. Data not available in the input is noted where applicable.