CPT® Code 33983

The CPT® Code 33983 refers to the replacement of a ventricular assist device (VAD) pump that is implantable and intracorporeal, specifically designed for a single ventricle, and performed with the use of cardiopulmonary bypass. A ventricular assist device is a mechanical pump that supports heart function and blood flow in individuals with weakened hearts. The term "intracorporeal" indicates that the device is implanted within the body, as opposed to being external. This procedure is typically necessary when the existing pump has failed mechanically, necessitating its replacement to ensure continued support for the patient's circulatory system. The process involves a surgical approach that includes making a midline incision in the chest, which may be extended into the upper abdomen to access the pump pocket. The use of cardiopulmonary bypass during the procedure allows for the temporary support of circulation while the heart is not functioning normally, ensuring that blood flow is maintained throughout the body. This complex procedure requires careful inspection and management of the heart and associated components, including the drive line and conduits, to ensure proper placement and function of the new pump. The overall goal is to restore effective heart function and improve the patient's quality of life.