CPT® Code 32320

The procedure described by CPT® Code 32320 involves decortication and parietal pleurectomy, which are surgical interventions aimed at addressing issues related to the pleura, the serous membrane surrounding the lungs. The pleura consists of two layers: the parietal pleura, which lines the chest wall, and the visceral pleura, which covers the lungs themselves. In certain medical conditions, the visceral pleura can become encased in a thick layer of fibrin, leading to restricted lung expansion and impaired respiratory function. This thickened layer must be surgically removed to restore normal lung mechanics. The procedure begins with a posterolateral incision in the chest, typically at the fifth or sixth intercostal space, allowing access to the lung. During the decortication process, the surgeon not only removes the parietal pleura but also meticulously strips away the thickened fibrin layer from the visceral pleura. This dual approach is essential for ensuring that all areas of the lung that are encased by the fibrin layer are adequately addressed, thereby facilitating improved lung expansion and function post-surgery. Following the procedure, chest tubes are often placed to assist with drainage, and the incision is subsequently closed to promote healing.