autoimmune disease +
gastrointestinal system disease +

antisynthetase syndrome
appendix disease +
autoimmune disease of blood +
autoimmune disease of cardiovascular system +
autoimmune disease of endocrine system +
autoimmune disease of exocrine system +
autoimmune disease of musculoskeletal system +
autoimmune disease of the nervous system +
autoimmune disease of urogenital tract +
autoimmune interstitial lung, joint, and kidney disease
CINCA Syndrome
common variable immunodeficiency +
diarrhea +
esophageal atresia/tracheoesophageal fistula
esophageal disease +
familial Mediterranean fever
Felty's syndrome
gallbladder disease +
gastroenteritis +
gastroesophageal reflux disease
gastrointestinal anthrax +
gastrointestinal system benign neoplasm +
gastrointestinal system cancer +
gastrointestinal tularemia
hepatobiliary disease +
IgG4-related disease
immune dysregulation-polyendocrinopathy-enteropathy-X-linked syndrome
intestinal disease +
Jaccoud's syndrome
juvenile polyposis syndrome
Mikulicz disease
mouth disease +
mucositis
peptic ulcer disease +
perinatal necrotizing enterocolitis
peritonitis +
PFAPA syndrome
stomach disease +

autoimmune gastritis
autoimmune hepatitis +
celiac disease
primary biliary cholangitis +
ulcerative colitis