CPT code 33369 designates cardiopulmonary bypass (CPB) with central arterial and venous cannulation when performed during a primary transcatheter aortic valve implantation/replacement (TAVI/TAVR). This intraoperative service code captures an advanced cardiac support technique used when CPB is required to manage hemodynamics or facilitate complex valve implantation. Nationally, accurate use of this code affects hospital procedure reporting, case mix classification, and payment for high-acuity structural heart interventions.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service setting, plus what to expect in a fuller analysis: benchmark metrics for utilization, documentation and coding considerations, and potential policy or payer coverage implications. The full publication will cover how 33369 interacts with procedural reporting for TAVI/TAVR, common billing scenarios, and areas where clearer documentation supports appropriate claim adjudication.

This summary is written for a national audience of clinicians, coders, and policy analysts seeking a practical reference to the code's clinical meaning and relevance to hospital-based structural heart services. Data not available in the input will be identified in the detailed sections of the full report.