| Universal criterion: The symptoms cannot be completely explained by another medical condition after appropriate evaluation |
| Functional dyspepsia |
In addition to the universal criterion, ≥1 of the following bothersome symptoms on ≥4 days/month for ≥2 months: - Persistent sensation of fullness after eating
- Feeling full after eating small amounts of food
- Epigastric burning or pain unrelated to bowel movements
- Postprandial distress syndrome: Early or persistent sensation of fullness prevents finishing a typical meal
- Epigastric pain syndrome: Bothersome epigastric pain or burning not relieved with having a bowel movement or passing gas
|
| Irritable bowel syndrome |
In addition to the universal criterion, abdominal pain on ≥4 days/month for ≥2 months that is associated with ≥1 of the following: - Pain during bowel movements
- Altered stool appearance
- Altered stool frequency - either more or less frequent
- For children or adolescents with less frequent stools, abdominal pain persists after resolution of constipation (pain that resolves with resolution of constipation indicated functional constipation, described below)
|
| Abdominal migraine |
| Abdominal pain is the most severe and troublesome symptom. In addition to the universal criterion, all of the following: - Recurrent sudden episodes of intense abdominal pain (diffuse, midline, or periumbilical) lasting ≥1 hour on ≥2 occasions within 6 months
- Weeks or months between episodes
- The pain interferes with normal activities
- The symptoms and pattern vary from patient to patient
- The pain is associated with ≥2 of the following:
- Anorexia
- Nausea
- Vomiting
- Headache
- Photophobia
- Pallor
|
| Functional abdominal pain - not otherwise specified (NOS) |
In addition to the universal criterion, all of the following: - Occurs ≥4 times/month for ≥2 months
- Whether constant or intermittent, the abdominal pain is not exclusively related to physiologic events (eg, menstruation, eating)
- Does not meet criteria for functional dyspepsia, irritable bowel syndrome, or abdominal migraine
|
| Functional constipation* |
In addition to the universal criterion, ≥2 of the following on ≥1 day/week for >1 month and does not meet criteria for irritable bowel syndrome: - For children with a developmental age of ≤4 years: ≤2 bowel movements in the toilet per week
- ≥1 episode of fecal incontinence per week
- Painful or hard bowel movements
- Large diameter stools
- Purposeful stool retention or retentive posturing
- A large fecal mass in the rectum
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