CPT code 93574 represents selective pulmonary venography performed as part of a cardiac catheterization procedure. The service involves catheter-directed contrast injection into a pulmonary vein with fluoroscopic imaging, physician supervision, image interpretation, and a formal report. This diagnostic procedure is important for evaluating pulmonary venous anatomy and flow in patients undergoing invasive cardiac evaluation and can affect procedural planning and downstream management.

Key national payers relevant to coverage and reimbursement practices include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage policies and prior authorization requirements can vary by payer and clinical indication.

Readers will find a concise clinical description, expected site-of-service context, and the typical service type for 93574. The publication also summarizes payer coverage scope, common modifiers used with the code, and the clinical context in which the procedure is performed. Where available, benchmarking information and policy summaries are provided to help clinical administrators and billing professionals understand coding, documentation, and payer expectations. Data not available in the input is noted where applicable.