Here again, the diagnosis of functional gastrointestinal disease is based on the premise that there is no organic disease.
The latest classification is as follows.
I. Functional esophageal disorders
1.Functional heartburn
2.Functional chest pain originating from the esophagus
3.Functional dysphagia
4.Hysteria, continuous or intermittent painless mass or foreign body sensation in the larynx
II. Functional gastroduodenal diseases
1.Functional dyspepsia.
2.Belching syndrome.
3, nausea and vomiting, subdivided into.
(1) chronic idiopathic nausea
(2) functional vomiting
(3) periodic vomiting
(4) regurgitation syndrome.
III. Functional intestinal diseases
1.Irritable bowel syndrome
2.Functional abdominal distension
3.Functional constipation
4.Functional diarrhea
5.Non-specific functional enteropathy
4.Functional abdominal pain syndrome
V. Gallbladder and Oddi sphincter dysfunction
VI. Functional anorectal diseases
1.Functional fecal incontinence
2.Functional anorectal pain
3.Functional defecation disorder