Question: New Jersey Subscriber Answer: To use this code, your gastroenterologist will need to perform ERCP, which includes codes 43260, 43261, 43263-43265, and 43267-43272 (Endoscopic retrograde cholangiopancreatography [ERCP] ...). Look for evidence in the doctor's notes that she cannulated, entered, or penetrated the papilla of Vater, which is where the bile duct empties into the lower intestine, or that she viewed the common bile duct or pancreatic duct. CPT introduced +43273 in 2009 to represent this new technology, which allows gastroenterologists to see inside the ducts that carry bile to the small intestine. Previously, gastroenterologists could only visualize the biliary system using imaging technology such as fluoroscopy or x-rays. With these new devices, which involve a tiny scope the physician can advance up the pancreatic or biliary duct, the physician can not only see the anatomy but directly obtain a tissue specimen of an abnormality. Learn more: