Lactose intolerance
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
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.
sections/codes in this section (5C61.6-5C61.6)
- Primary lactase deficiency (5C61.60)
- Congenital lactase deficiency (5C61.61)
- Secondary lactase deficiency (5C61.62)
- Lactose intolerance, unspecified (5C61.6Z)
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