ICD-10 diagnosis code

E73 Lactose intolerance

E73 is the ICD-10 code for Lactose intolerance. It is a three-character category divided into 4 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block E70–E90 (Metabolic disorders) in Chapter IV, Endocrine, nutritional and metabolic diseases.

Code type: Category (3 characters)
Chapter: IV · E00–E90
Classification: WHO ICD-10, 2019 version

Subcodes of E73

E73 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

E73Laktosintolerans

DenmarkICD-10-DK

DE73Laktoseintolerans

FinlandICD-10-FI

E73Laktoosi-intoleranssi

GermanyICD-10-GM

E73Laktoseintoleranz

FranceICD-10-FR

E73Intolérance au lactose

NetherlandsICD-10-NL

E73lactose-intolerantie

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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