Diagnosis Code

E73.9 LACTOSE INTOLERANCE, UNSPECIFIED


Code Information

Diagnosis Code: E73.9

Short Description: Lactose intolerance, unspecified

Long Description: Lactose intolerance, unspecified

The code E73.9 is VALID for claim submission

Code Classification:

  • Endocrine, nutritional and metabolic diseases (E00–E89)
    • Metabolic disorders (E70-E88)
      • Lactose intolerance (E73)
        • E73.9 Lactose intolerance, unspecified

Code Version: 2022 ICD-10-CM


Synonyms

  • Disaccharidase deficiency
  • Intestinal disaccharidase deficiency
  • Intolerance to lactose
  • Lactase deficiency
  • Malabsorption syndrome due to intolerance to lactose
  • Sucrosuria

Diagnostic Related Group(s)

The code E73.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders With Mcc (391)
  • Esophagitis, Gastroenteritis And Miscellaneous Digestive Disorders Without Mcc (392)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
E73.9 Right Arrow 271.3 Disaccharidase def/malab

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
E73 Lactose intolerance
E73.0 Congenital lactase deficiency
E73.1 Secondary lactase deficiency
E73.8 Other lactose intolerance


This page was last updated on: 10/1/2023