Esophagitis, esophageal varices, esophageal polyps, esophageal cancer, gastritis, Helicobacter pylori infection, gastric ulcer, gastric varices, gastric polyps, gastric cancer, duodenitis, duodenal ulcer, duodenal polyps, duodenal cancer, enteritis, intestinal obstruction, small intestine bleeding, small intestine polyps, small intestine cancer, colitis, diverticulitis of the colon, diverticular bleeding of the colon, colon polyps, colon cancer, gastrointestinal endocrine tumors, mesenchymal tumors (such as GIST), gastrointestinal polyposis, eosinophilic gastrointestinal diseases, Crohn's disease, ulcerative colitis, intestinal Behçet's disease.
　

Pancreatic cancer, biliary tract cancer, common bile duct stones, gallstones, intrahepatic stones, postoperative biliary stricture, pancreatic cysts (IPMN, MCN, SCN), acute pancreatitis, complications after pancreatitis (pseudocysts, walled-off necrosis), chronic pancreatitis and pancreatic stones, autoimmune pancreatitis, IgG4-related sclerosing cholangitis, primary sclerosing cholangitis.
　

Viral hepatitis, fulminant hepatitis and acute liver failure, autoimmune hepatitis, primary biliary cholangitis, non-alcoholic fatty liver disease, cirrhosis, hepatocellular carcinoma.