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Compare/E73 vs E74.3

E73 vs E74.3

E73 (Lactose intolerance) compared with E74.3 (Other disorders of intestinal carbohydrate absorption), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. E74.3 carries an Excludes2 note covering E73: “lactose intolerance (E73.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

E73Lactose intoleranceE74.3Other disorders of intestinal carbohydrate absorption
Billing statusNon-billable header

Report instead: E73.0, E73.1, E73.8, E73.9

Non-billable header

Report instead: E74.31, E74.39

ClassificationE00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)E00-E89 — Endocrine, Nutritional and Metabolic Diseases (E00-E89)
DefinitionLactose intolerance is a non-billable ICD-10-CM category code (E73).Other disorders of intestinal carbohydrate absorption is a non-billable ICD-10-CM category code (E74.3).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources