E73
⚠ Non-billable
Lactose intolerance
ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases
Code
E73
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Endocrine, Nutritional and Metabolic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code E73?
ICD-10-CM code E73 represents Lactose intolerance. It is a non-billable header code requiring a more specific subcategory in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is E73 billable?
No. E73 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E73 in?
E73 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.
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