Summary & Overview
CPT 33925: Pulmonary Artery Repair with Unifocalization, No Bypass
CPT code 33925 represents a specialized cardiac surgical procedure that repairs pulmonary artery arborization anomalies by creating a unifocal pulmonary blood supply without using cardiopulmonary bypass. The procedure is clinically significant for patients with complex congenital pulmonary artery branching abnormalities, where establishing a single, integrated pulmonary blood supply can be essential for respiratory and circulatory function. Nationally, this code denotes a high-acuity, resource-intensive inpatient surgical service performed in specialized centers.
Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage and payment policies for this procedure typically reflect its specialized nature and inpatient surgical setting.
Readers will find a concise overview of clinical context and coding purpose, a summary of typical sites of service, and what to expect in payer coverage patterns. The publication also outlines benchmarks and policy considerations relevant to hospital billing departments, surgical programs, and coding professionals, and highlights clinical implications tied to the code’s use. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 33925 describes a surgical procedure to repair pulmonary artery branching anomalies by creating a unifocal (single) pulmonary blood supply, achieving complete repair of the arborization without the use of cardiopulmonary bypass. This is a corrective cardiac surgical procedure addressing anomalous pulmonary artery anatomy.
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Service type: Surgical repair of pulmonary arteries and unifocalization of pulmonary blood supply
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Typical site of service: Inpatient hospital operating room (cardiac surgery suite)
Clinical & Coding Specifications
Clinical Context
A typical patient is an infant or young child with congenital pulmonary artery arborization anomalies such as pulmonary atresia with major aortopulmonary collateral arteries (MAPCAs) or complex congenital heart disease requiring unifocalization of pulmonary blood supply. The patient is evaluated by a multidisciplinary congenital cardiac team including pediatric cardiology, cardiothoracic surgery, anesthesia, and perfusion support. Preoperative workup commonly includes transthoracic echocardiography, cardiac catheterization with angiography to delineate pulmonary artery anatomy and MAPCAs, cross-sectional imaging (CT or MRI) as needed, and routine preoperative labs. The procedure 33925 is performed in an operating room equipped for pediatric cardiothoracic surgery. Intraoperative monitoring includes arterial line, central venous access, transesophageal echocardiography when feasible, and specialized pediatric anesthesia. The surgeon performs repair and unifocalization of pulmonary arteries without use of cardiopulmonary bypass, creating a single pulmonary blood supply and addressing branching anomalies. Postoperative care occurs in a pediatric cardiac intensive care unit with ventilatory support, hemodynamic monitoring, and follow-up imaging (echocardiography or catheterization) to assess pulmonary blood flow and right ventricular function. Typical indications include restoration of pulmonary artery continuity and optimization of pulmonary blood flow prior to staged intracardiac repair or as definitive management of arborization anomalies.
Coding Specifications
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