Table 1

Functional gastrointestinal disorders

A. Esophageal disorders
 A1. Globus
A2. Rumination syndrome
A3. Functional chest pain of presumed esophageal origin
A4. Functional heartburn
A5. Functional dysphagia
A6. Unspecified functional esophageal disorder
B. Gastroduodenal disorders
 B1. Functional dyspepsia
  B1a. Ulcer-like dyspepsia
  B1b. Dysmotility-like dyspepsia
  B1c. Unspecified (non-specific) dyspepsia
 B2. Aerophagia
 B3. Functional vomiting
C. Bowel disorders
C1. Irritable bowel syndrome
C2. Functional abdominal bloating
C3. Functional constipation
C4. Functional diarrhea
C5. Unspecified functional bowel disorder
D. Functional abdominal pain
D1. Functional abdominal pain syndrome
D2. Unspecified functional abdominal pain
E. Biliary disorders
E1. Gall bladder dysfunction
E2. Sphincter of Oddi dysfunction
F. Anorectal disorders
F1. Functional fecal incontinence
F2. Functional anorectal pain
 F2a. Levator ani syndrome
 F2b. Proctalgia fugax
F3. Pelvic floor dyssynergia
G. Functional pediatric disorders
 G1. Vomiting
  G1a. Infant regurgitation
  G1b. Infant rumination syndrome
  G1c. Cyclic vomiting syndrome
 G2. Abdominal pain
  G2a. Functional dyspepsia
  G2b. Irritable bowel syndrome
  G2c. Functional abdominal pain
  G2d. Abdominal migraine
  G2e. Aerophagia
 G3. Functional diarrhea
 G4. Disorders of defecation
  G4a. Infant dyschezia
  G4b. Functional constipation
  G4c. Functional fecal retention
  G4d. Non-retentive fecal soiling