E73.1
BillableSecondary lactase deficiency
Secondary lactase deficiency
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(23)
SNOMED CT
- Acquired lactase deficiency60414003
- Acquired lactose intolerance60414003
- Secondary lactase deficiency60414003
- Secondary lactose intolerance60414003
- Lactase deficiency237975008
- Intolerance to lactose due to lactase deficiency in diseases other than of the small intestine782336005
- Intolerance to lactose782415009
UMLS
- Acquired lactase deficiencyC0268183
- Acquired lactase deficiency (disorder)C0268183
- Acquired lactose intoleranceC0268183
- Secondary lactase deficiencyC0268183
- Secondary lactose intoleranceC0268183
- acquired lactose intoleranceC0268183
- intolerance lactose secondaryC0268183
- secondary lactose intoleranceC0268183
Clinical Terms
- Intolerance to lactose
- Acquired lactase deficiency (disorder)
- secondary lactose intolerance
- Acquired lactose intolerance
- intolerance lactose secondary
- Acquired lactase deficiency
- Intolerance to lactose due to lactase deficiency in diseases other than of the small intestine
- Lactase deficiency
Frequently Asked Questions
What is the ICD-10 code for secondary lactase deficiency?
The ICD-10-CM code for secondary lactase deficiency is E73.1. The full clinical description is "Secondary lactase deficiency". E73.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code E73.1 mean?
ICD-10-CM code E73.1 represents “Secondary lactase deficiency”. It is classified under Chapter 4: Endocrine, Nutritional and Metabolic Diseases and is a billable/specific code that can be used on a claim.
Is E73.1 a billable code?
Yes, E73.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is E73.1 in?
E73.1 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).
What codes cannot be used with E73.1?
E73.1 has Excludes1 notes indicating codes that cannot be used together with it, including: transitory endocrine and metabolic disorders specific to newborn (P70-P74); androgen insensitivity syndrome (E34.5-); congenital adrenal hyperplasia (E25.0); and 3 more.
What SNOMED CT codes does E73.1 map to?
E73.1 maps to 4 SNOMED CT concepts: 60414003, 782415009, 782336005, 237975008. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for E73.1?
E73.1 is linked to 1 UMLS Concept Unique Identifier: C0268183. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does E73.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like secondary lactase deficiency affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of E73.1?
E73.1 maps to the ICD-11 code: 5C61.62 (Secondary lactase deficiency).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.