▷ Diseases or disorders of orofacial complex
    ▷ Diseases of oesophagus
    ▷ Diseases of the stomach or the duodenum
    ▷ Diseases of small intestine
    ▷ Diseases of appendix
    ▷ Diseases of large intestine
    ▷ Diseases of anal canal
    ▷ Diseases of liver
    ▷ Diseases of gallbladder or biliary tract
    ▷ Diseases of pancreas
    ▷ Diseases of peritoneum
    ▷ Diverticular disease of intestine
    ▷ Ischaemic vascular disorders of intestine
    ▷ Hernias
    ▷ Inflammatory bowel diseases
    ▷ Functional gastrointestinal disorders
    ▷ Postprocedural disorders of digestive system