Specialty Surgeon Complete Packaged Procedure. Laparoscopic Duodenal Switch is bariatric surgery for weight loss by restricting the amount of food that can be eaten (removal of 70% of the stomach or vertical gastrectomy) and by limiting the amount of food that is absorbed into the body (intestinal bypass or duodenal switch). It is also called vertical gastrectomy with duodenal switch and biliopancreatic diversion with duodenal switch. It has a significant component of malabsorption (bypass of the intestinal tract), limiting fat absorption which seems to augment and help maintain long-term weight loss. Treatment cost includes the facility fee, physician’s fee, related medical procedures and drugs required to administer the plan of care. Not included are diagnostic studies, consultations with additional specialists and cost of complication management; travel, food and lodging.