2025 CPT code 33762

Creation of a shunt from the descending aorta to the pulmonary artery (Potts-Smith type operation).

This code is for the creation of the shunt itself.Any other procedures performed at the same time, such as ligation of a patent ductus arteriosus, should be coded separately. Do not report cardiac catheterization codes for hemodynamic or angiographic data obtained solely for the purpose of performing the shunt. Report diagnostic catheterization separately if a full diagnostic study is performed or if a prior study is inadequate or outdated. For same-session diagnostic angiography, report appropriate contrast injection codes if distinct from shunt creation.

Modifiers may be applicable in certain situations. Modifier 22 (Increased Procedural Services) would be used if the procedure was significantly more complex than usual. Modifier 51 (Multiple Procedures) may be appropriate if other distinct procedures are performed at the same surgical session. Other modifiers may be applicable depending on the specific circumstances. Consult current CPT guidelines and payer rules for appropriate modifier use.

Medical necessity is established by documentation of a congenital heart defect resulting in reduced pulmonary blood flow and hypoxemia. The documentation must support the need for the shunt creation to improve oxygenation and overall cardiac function.

The surgeon makes an incision in the chest wall, exposes the descending aorta and pulmonary artery, creates a connection between them (sometimes using a synthetic tube), ensures appropriate blood flow, and closes the incision.