- Abdominal pain
- Acute pancreatitis
- Appetite loss
- Autoimmune hepatitis
- Barrett's esophagus
- Bile duct inflammation (Cholangitis)
- Bloating
- Bowel incontinence
- Bowel obstruction
- Celiac disease
- Chronic pancreatitis
- Clostridium difficile infection
- Collagenous colitis
- Colonic inertia
- Constipation
- Crohn's disease
- Diarrhea
- Diverticulitis
- Elevated liver blood test
- Enlarged liver
- Eosinophilic esophagitis
- Eosinophilic gastroenteritis
- Epigastric pain
- Esophageal achalasia
- Esophageal motility disorder
- Esophageal spasm
- Esophageal stricture
- Esophageal varices
- Esophagitis (Esophagus Inflammation)
- Fatty liver disease
- Focal nodular hyperplasia
- Gallbladder Inflammation (Cholecystitis)
- Gallstones
- Gastroesophageal reflux disease (GERD)
- Gastrointestinal bleeding (GI bleeding)
- Gastrointestinal dysmotility
- Gastroparesis
- Helicobacter pylori (H. Pylori)
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Hiatal hernia
- Intestinal pseudo obstruction
- Irritable bowel syndrome (IBS)
- Jaundice
- Lactose intolerance
- Liver cirrhosis
- Liver lesion
- Lymphocytic colitis
- Lynch syndrome
- Malabsorption syndrome
- Microscopic colitis
- Nausea
- Nonalcoholic steatohepatitis (NASH)
- Pancreatic cyst
- Pancreatic pseudocyst
- Pancreatitis
- Peptic ulcer disease
- Peutz-Jeghers syndrome
- Portal hypertension
- Short bowel syndrome
- Stomach ulcer
- Swallowing difficulty
- Ulcerative colitis (UC)
- Vomiting
- Wilson's disease
- Colonoscopy