ICD-11 classes
13 Diseases of the digestive system
Diseases of small intestine
DA96 — Intestinal malabsorption or protein-losing enteropathy
DA96.0 — Intestinal malabsorption
DA96.02 — Malabsorption or intolerance of specific nutrients
5C61.6 — Lactose intolerance
ICD-11 5C61.6 — Lactose intolerance
Lactose intolerance is the inability to digest lactose, a sugar found in milk and some dairy products, due to a deficiency of lactase, the enzyme that metabolizes lactose. Lactose intolerance occurs when lactose is not completely broken down and consequently the sugar cannot be absorbed into the blood.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code 5C61.6 contains 4 clarifying diagnoses:
- 5C61.60 — Primary lactase deficiency
- 5C61.61 — Congenital lactase deficiency
- 5C61.62 — Secondary lactase deficiency
- 5C61.6Z — Lactose intolerance, unspecified
The diagnosis is coded elsewhere: