CPT® Code 37180

The CPT® Code 37180 refers to a surgical procedure known as an open proximal splenorenal venous anastomosis. This procedure is performed to create a connection between the splenic vein and the left renal vein, facilitating improved blood flow and pressure regulation in the venous system. The term "splenorenal" indicates the anatomical relationship between the spleen and the renal (kidney) vein involved in this procedure. The procedure is typically indicated in cases where there is a need to manage complications arising from conditions such as portal hypertension, which can lead to the development of esophagogastric varices. During the operation, a thoracoabdominal or transabdominal incision is made to access the spleen, which is then removed to allow for the proper dissection and anastomosis of the veins. The meticulous steps involved in this procedure ensure that the splenic vein is adequately prepared and connected to the left renal vein, thereby enhancing venous drainage and alleviating pressure in the surrounding vascular structures.