CPT® Code 93533

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Combined right heart catheterization and transseptal left heart catheterization through existing septal opening, with or without retrograde left heart catheterization, for congenital cardiac anomalies

The CPT® Code 93533 refers to a specialized procedure known as combined right heart catheterization and transseptal left heart catheterization. This procedure is performed through an existing septal opening and may include retrograde left heart catheterization, specifically for the evaluation of congenital cardiac anomalies. In simpler terms, this procedure allows healthcare professionals to access both the right and left sides of the heart to assess and diagnose any structural or functional abnormalities that may be present due to congenital heart defects. The right heart catheterization typically begins with access through the right femoral vein located in the groin area. A small incision is made to insert a needle into the vein, followed by the placement of a sheath. A guidewire is then navigated through the venous system into the right atrium, allowing for the insertion of a catheter. This catheter is advanced through the right heart chambers and into the pulmonary arteries, where various measurements, such as pressures and oxygen levels, are taken. The procedure also involves inspecting the tricuspid and pulmonary valves and may include obtaining angiograms of the right heart and pulmonary arteries. Following this, the catheter is advanced through the existing septal opening into the left heart, where the left atrium, mitral valve, left ventricle, and aortic valve are evaluated for any congenital anomalies. Pressures within the left heart chambers are measured, and additional angiograms may be performed if necessary. If retrograde left heart catheterization is indicated, a second catheter is introduced through an artery, allowing for further evaluation of the left heart structures and any associated anomalies.