2007 ICD-9-CM Procedure 51.84 Endoscopic dilation of ampulla and biliary duct 51.84 is a specific code that can be used to specify a procedure 51.84 contains 7 index entries View the full Volume 3 51.* hierarchy 51.84 also known as: Dilation of ampulla and biliary duct by procedures classifiable to 51.10-51.11, 52.13 Index entries containing 51.84: Dilation ampulla of Vater 51.81 endoscopic 51.84 biliary duct endoscopic 51.84 sphincter of Oddi 51.81 endoscopic 51.84 sphincter of Oddi 51.81 endoscopic 51.84 Exploration -- see also Incision bile duct(s) 51.59 common duct 51.51 for relief of obstruction 51.42 endoscopic 51.84 for relief of obstruction 51.49 endoscopic 51.84 common bile duct 51.51 for relief of obstruction 51.42 endoscopic 51.84