CPT code 33120 represents open surgical removal of a heart tumor performed with the patient on cardiopulmonary bypass. This high-complexity cardiac surgical procedure is performed by cardiothoracic surgeons in hospital operating rooms, often requiring intensive perioperative resources and coordination. Nationally, procedures like this are clinically significant due to their resource intensity, potential for major complications, and implications for facility and surgeon billing.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of clinical context and billing relevance, including typical sites of service, common payer coverage considerations, and how this code fits within cardiac surgical service lines. The publication outlines benchmarks where available, highlights relevant policy and coding guidance affecting reimbursement and documentation, and summarizes typical clinical scenarios associated with use of the code. Where input data is incomplete, the report notes missing elements as "Data not available in the input." The content is intended to give clinicians, billing professionals, and policy analysts a clear, national-level summary of CPT code 33120 and its role in coding and billing for cardiac tumor excision procedures.