CPT code 33419 represents percutaneous mitral valve repair with placement of additional prosthetic components during the same operative session as an initial mitral valve repair and prosthesis insertion. The code captures complex intraprocedural implantation when a provider releases a stenotic, stiff mitral valve — potentially using transseptal access — while the patient is on cardiopulmonary bypass. Nationally, this code is relevant for assessing utilization and reimbursement of advanced structural heart interventions and for aligning clinical documentation with procedural complexity.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of procedural scope and clinical context, typical sites of service, and the payer mix considered. The publication outlines benchmarks and common coverage considerations for advanced mitral valve interventions, highlights coding and billing implications for same-session additional prosthesis placement, and summarizes policy developments that affect authorization and hospital billing workflows. The content aims to support clinicians, billing professionals, and policy analysts in understanding where CPT code 33419 fits within structural heart procedure coding and payer landscapes. Data not available in the input is noted where applicable.