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Start free with EleplanSmall bowel atresia
ORPHA:1201Morphological anomaly
Also called Atresia of small bowel · Atresia of small intestine · Jejunal atresia · Jejunoileal atresia · SBA · Small intestinal atresia
What it is
A rare, congenital defect of the small intestine characterized by disruption in the normal small intestine continuity, resulting in intestinal obstruction. The malformation may be classified in four different types of small bowel atresia (SBA) based on the anatomical obstruction.
Key facts
- Prevalence
- 1-9 / 100 000 (at birth, Europe)
- Age of onset
- Antenatal
- Inheritance
- Autosomal recessive, Not applicable, Unknown
- Classified as
- Morphological anomaly
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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