Gastroenterologic disease: Any disease of the digestive system. Gastroenterologic disorders include Barrett's esophagus, bile duct disease, celiac disease, cirrhosis of the liver, colon polyps and colon cancer, constipation and diarrhea, Crohn's disease, diverticulosis and diverticulitis, gallbladder disease and gallstones, gastritis, GERD (gastroesophageal reflux), GI bleeding, hepatitis, hiatal hernia, indigestion, IBS (irritable bowel syndrome), jaundice, liver disease, malabsorption, nausea and vomiting, nutrition, pancreatitis, peptic ulcer, rectal bleeding, swallowing abnormalities, and ulcerative colitis.