CPT code 33845 represents an open surgical procedure to excise an aortic stricture and reconstruct the aorta using a tissue graft; repair of a concurrent patent ductus arteriosus may be performed if present. This code captures a high-complexity cardiovascular operation that has implications for surgical resource use, hospital length of stay, and reimbursement for thoracic vascular services nationally. Payors evaluated in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise overview of the clinical context for CPT code 33845, typical sites of service, and how this procedure is categorized for billing purposes. The publication summarizes common payer coverage patterns, useful benchmarks for utilization and payment where available, and recent policy or coding guidance that affects billing and claims processing for complex aortic reconstructive surgery. The report also outlines operational considerations relevant to coding capture, documentation elements that support medical necessity, and related CPT codes and service-line implications. Data not available in the input are noted where applicable.