Morriston Hospital ERCP grading scale13
| Procedure | Grades |
|---|---|
| Diagnostic ERCP | I |
| Biliary sphincterotomy, balloon sphincteroplasty, removal of extrahepatic stones ≤1 cm using basket and/or balloon | II |
| Precut sphincterotomy, large stones removal (>1 cm), intrahepatic stone removal, mechanical lithotripsy, stricture dilation, cytology, stent insertion and nasobiliary drain | III |
| Sphincter of Oddi manometry, diagnostic and therapeutic ERCP after Billroth II surgery, minor papilla sphincterotomy, endoscopic ampullectomy and all pancreatic duct therapeutic procedures. Cholangioscopy, laser lithotripsy, electrohydraulic lithotripsy, combined procedures (PTC and ERCP) and other advanced bile duct therapeutic procedures | IV |
ERCP, endoscopic retrograde cholangiopancreatography; PTC, percutaneous transhepatic cholangiography.