CPT® Code 33130

The procedure described by CPT® Code 33130 involves the resection of an external cardiac tumor, which refers to the surgical removal of a neoplasm located on the external surface of the heart. These tumors can be classified as either benign or malignant and may affect various layers of the heart, including the endocardium, myocardium, and epicardium. Specifically, external cardiac tumors are defined as those that are situated beneath the parietal pericardium, which is the fibrous membrane encasing the heart, and they typically involve the epicardium or the outer surface of the heart muscle itself. The surgical approach begins with an incision in the skin of the chest, followed by a median sternotomy to gain access to the thoracic cavity. Once the thorax is opened, the surgeon inspects the area and incises the pericardium at the location of the tumor. The tumor is then exposed and resected, with the goal of completely removing the tumor while ensuring a clear margin of healthy heart tissue. If complete resection is not feasible, the surgeon will excise as much of the tumor as possible. After the tumor removal, any resulting defect in the heart is repaired, and chest tubes may be placed as necessary to facilitate drainage before the chest incision is closed. This procedure is critical for addressing cardiac tumors that may pose a risk to heart function or overall health.