CPT® Code 47700

Exploration for congenital atresia of bile ducts, without repair, with or without liver biopsy, with or without cholangiography

CPT® Code 47700 refers to the surgical procedure known as exploration for congenital atresia of the bile ducts, which is performed without repair. This procedure may also include a liver biopsy and/or cholangiography, depending on the clinical scenario. Congenital biliary atresia is a serious condition characterized by the obliteration or discontinuity of the extrahepatic bile ducts, leading to an obstruction in the flow of bile from the liver. If left untreated, this condition can progress to severe liver damage, including cirrhosis and eventual liver failure. During the procedure, an abdominal incision is made in the upper midline to expose the gallbladder and liver. The surgeon identifies the extrahepatic bile ducts or any remnants of the biliary tract and assesses their patency. Intraoperative cholangiography may be performed by inserting a small catheter into the cystic duct and injecting contrast media to visualize the anatomy of the biliary tree radiographically. The successful passage of contrast media to the gastrointestinal tract indicates normal biliary function, while failure to do so suggests biliary atresia. Additionally, tissue samples may be collected from the liver for histological evaluation to check for signs of bile duct proliferation or obstruction, which are critical for determining the appropriate management of the condition.