Is E73.0 a billable ICD-10 code?

Yes. E73.0 (Congenital lactase deficiency) is billable and can be used for insurance claims. Always verify payer-specific requirements.

E73.0 ✓ Billable

Congenital lactase deficiency

Q: What is ICD-10 code E73.0?

ICD-10-CM code E73.0 stands for "Congenital lactase deficiency". It is a billable code in the Endocrine, Nutritional and Metabolic Diseases chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases

Code

E73.0

System

ICD-10-CM

Billable

Yes — valid for submission

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 E73.0?

ICD-10-CM code E73.0 represents Congenital lactase deficiency. It is a billable diagnosis code in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.

Is E73.0 billable?

Yes. E73.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is E73.0 in?

E73.0 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.

Related codes in the E73 category

E73 Lactose intolerance Non-billable E73.1 Secondary lactase deficiency Billable E73.8 Other lactose intolerance Billable E73.9 Lactose intolerance, unspecified Billable

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