CPT® Code 48148

The procedure described by CPT® Code 48148 involves the excision of the ampulla of Vater, a critical anatomical structure located at the junction of the bile duct and the pancreatic duct within the second part of the duodenum. This surgical intervention, commonly referred to as an ampullectomy, is performed to address various conditions affecting the ampulla, such as tumors or obstructions. The procedure typically requires a subcostal or midline incision in the abdomen to provide access to the duodenum. Once the incision is made, the surgeon mobilizes the second part of the duodenum to facilitate the excision. The use of stay sutures in the duodenal wall helps stabilize the area during the operation. A catheter is then utilized to cannulate the bile and pancreatic ducts, allowing for precise manipulation and resection. The duodenal mucosa surrounding the ampulla of Vater is carefully resected, followed by the transection of the biliary and pancreatic ducts. The excision of the ampulla is performed with attention to the surrounding structures to minimize complications. After the ampulla is removed, the biliary and pancreatic ducts are reconstructed by approximating their common walls and suturing them to the duodenal wall. This reconstruction is critical for restoring normal drainage into the duodenum, and the ducts are probed with biliary dilators to ensure they are of adequate size. Finally, the duodenum is closed, and the surgical wound is irrigated with normal saline. In some cases, drains may be placed to facilitate postoperative drainage, and the abdomen is subsequently closed around these drains to complete the procedure.