<prompt> Answer this question truthfullyWhat surgical procedure is done to treat Choledocholithiasis?  <response>: <reason> Surgery is the mainstay of treatment for symptomatic choledocholithiasis. The procedure is Biliary endoscopic sphincterotomy, an essential procedure of endoscopic retrograde cholangiopancreatography ERCP. The procedure involves cutting the sphincter between the common bile duct and the pancreatic ducts using a flexible catheter and wire to remove the stone; About 85 of bile duct stone can be removed by BES. Biliary endoscopic sphincterotomy BES is an essential procedure of endoscopic retrograde cholangiopancreatography ERCP. Other treatments includeBiliary stenting stone extraction fragmenting stones lithotripsy Patients with choledocholithiasis secondary to gallstone can be treated with cholecystectomy. 