ICD-11 classes
13 Diseases of the digestive system
Diseases of small intestine
DA90 — Nonstructural developmental anomalies of small intestine

ICD-11 DA90 — Nonstructural developmental anomalies of small intestine

Any congenital defect of small intestine that results from interference with the normal growth and differentiation of the fetus. Such defects can arise at any stage of embryonic development, vary greatly in type and severity, and are caused by a wide variety of determining factors, including genetic mutations, chromosomal aberrations, teratogenic agents, and environmental factors. Most developmental defects are apparent at birth, especially any structural malformation, but some becomes evident later.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code DA90 contains 9 clarifying diagnoses:

1. DA90.0 — Syndromic diarrhoea
2. DA90.1 — Congenital intestinal transport defect
   It contains 3 clarifying diagnoses.
3. DA90.2 — Congenital intestinal motility disorders
4. 5C61.1 — Maltase-glucoamylase deficiency
5. 5C61.2 — Congenital sucrase-isomaltase deficiency
6. 5C61.3 — Alpha, alpha trehalase deficiency
7. 5C61.61 — Congenital lactase deficiency
8. DA90.Y — Other specified nonstructural developmental anomalies of small intestine
9. DA90.Z — Nonstructural developmental anomalies of small intestine, unspecified