E73
Non-billableLactose intolerance
Lactose intolerance
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Status
Non-billable / Header
Block
E70-E88
Child Codes
4
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- Ehlers-Danlos syndromes (Q79.6-)
Child Codes (4)
Also Known As / Clinical Terms
UMLS
- AlactasiaC0022951
- Dairy Product IntoleranceC0022951
- Dairy product intoleranceC0022951
- HypolactasiaC0022951
- Intolerance to lactoseC0022951
- Intolerance to lactose (finding)C0022951
- Intolerance, LactoseC0022951
- Lactose IntoleranceC0022951
- Lactose MalabsorptionC0022951
- Lactose intoleranceC0022951
- Lactose intolerance, unspecifiedC0022951
- Lactose malabsorptionC0022951
- Malabsorption, LactoseC0022951
- Milk IntoleranceC0022951
- Milk Sugar IntoleranceC0022951
- Milk intoleranceC0022951
- Milk sugar intoleranceC0022951
- cow's milk enteropathyC0022951
- lactose intoleranceC0022951
- milk intoleranceC0022951
Frequently Asked Questions
What is ICD-10 code E73?
ICD-10-CM code E73 represents "Lactose intolerance". It is a non-billable header code — use a more specific child code for billing purposes.
Is E73 a billable code?
No, E73 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under E73.
What chapter is E73 in?
E73 is in Chapter 4: Endocrine, Nutritional and Metabolic Diseases (codes E00-E89).
What codes cannot be used with E73?
E73 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 are the subcategories under E73?
E73 has 4 child codes, including: E73.0 (Congenital lactase deficiency), E73.1 (Secondary lactase deficiency), E73.8 (Other lactose intolerance), E73.9 (Lactose intolerance, unspecified).
What are the UMLS CUIs for E73?
E73 is linked to 1 UMLS Concept Unique Identifier: C0022951. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.