Outcomes in ERCP are measured mainly in terms of procedural success and complications. Recently, disposable duodenoscopes have been developed to overcome the challenges associated with reusable duodenoscope-related infections. While it is important to measure the technical performance of the newly developed disposable duodenoscope relative to conventional reusable scopes, presently, there are no objective tools to accomplish this task. The aim of this registry is to assess the reliability of a newly designed assessment tool to evaluate the technical performance of the currently available duodenoscopes. The duodenoscope assessment tool will be completed by each endoscopist after performing the ERCP and this data will be summarized and analyzed to assess the technical performance of the duodenoscopes and also to assess validity of the duodenoscope assessment tool. This is a multicenter study, with data collection from multiple centers across the United States.