48150
Pancreatectomy, proximal subtotal with total duodenectomy (Whipple-type procedure)
The Whipple procedure, or pancreaticoduodenectomy, is a highly complex surgical operation used primarily to treat tumors of the pancreatic head, duodenum, or distal common bile duct. CPT 48150 specifically describes the classic Whipple technique, which involves a proximal subtotal pancreatectomy along with a total duodenectomy and a partial gastrectomy. During this procedure, the surgeon removes the head of the pancreas, the entire duodenum, the gallbladder, the distal portion of the common bile duct, and the distal part of the stomach. The operation begins with a diagnostic laparotomy or laparoscopy to ensure the disease has not metastasized. If the tumor is deemed resectable, the surgeon performs a Kocher maneuver to mobilize the duodenum and head of the pancreas. Significant dissection is required to separate the pancreatic neck from the underlying superior mesenteric vein and portal vein. After the specimen is resected, the surgeon must reconstruct the gastrointestinal tract to maintain digestive function. This reconstruction, often referred to as the 're-plumbing' phase, includes three critical anastomoses: a pancreatojejunostomy (connecting the pancreatic remnant to the jejunum), a choledochojejunostomy (connecting the common bile duct to the jejunum), and a gastrojejunostomy (connecting the stomach to the jejunum). Because of the involvement of major vascular structures and the necessity of multiple high-risk anastomoses, this procedure is associated with significant morbidity and requires specialized surgical expertise. It remains the gold standard for treating resectable pancreatic head adenocarcinoma and other periampullary malignancies.
Clinical Indications
- Malignant neoplasm of the head of the pancreas
- Malignant neoplasm of the duodenum
- Malignant neoplasm of the distal common bile duct
- Ampullary carcinoma
- Chronic pancreatitis with a mass in the pancreatic head
- Severe trauma involving the pancreas and duodenum
- Neuroendocrine tumors of the pancreatic head
- Cystic neoplasms of the pancreas with high-grade dysplasia
Procedure Steps
- Perform exploratory laparotomy to assess resectability and rule out metastasis.
- Mobilize the duodenum and pancreatic head using the Kocher maneuver.
- Divide the gastrocolic and duodenocolic ligaments to access the lesser sac.
- Identify and protect the superior mesenteric artery and vein.
- Perform a cholecystectomy and divide the common hepatic duct.
- Perform a distal gastrectomy (partial removal of the stomach).
- Divide the proximal duodenum or distal stomach to clear the tumor margins.
- Divide the neck of the pancreas over the portal vein/superior mesenteric vein junction.
- Resect the specimen consisting of the pancreatic head, duodenum, distal bile duct, and distal stomach.
- Create a pancreatojejunostomy (anastomosis of the pancreatic tail to the jejunum).
- Create a choledochojejunostomy (anastomosis of the hepatic duct to the jejunum).
- Create a gastrojejunostomy (anastomosis of the stomach to the jejunum).
- Irrigate the operative field and place surgical drains near the anastomoses.
- Close the abdominal wall in layers.
Coding Guidelines
- Use 48150 for the classic Whipple procedure which includes a partial gastrectomy.
- If the procedure is performed with preservation of the pylorus (pylorus-preserving pancreaticoduodenectomy), use CPT 48153 instead.
- Cholecystectomy (47600) is considered a standard component of 48150 and is not reported separately.
- Do not report 44015 (Tube jejunostomy) as a separate procedure if performed during the same session for feeding access.
- If a total pancreatectomy is performed instead of a proximal subtotal pancreatectomy, use CPT 48155.
- Modifier 62 (Co-surgeons) may be appropriate if two surgeons of different specialties are required for the procedure.
- Regional lymphadenectomy is included in the primary procedure code and should not be billed separately.