E63Header code — not billable

Other nutritional deficiencies

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E63
Effective date
October 1, 2026

Related codes in category E63

E63.0Essential fatty acid [EFA] deficiencyYesE63.1Imbalance of constituents of food intakeYesE63.8Other specified nutritional deficienciesYesE63.9Nutritional deficiency, unspecifiedYes

Frequently asked questions

What is ICD-10 code E63?

E63 is an ICD-10-CM diagnosis code for Other nutritional deficiencies.

Is E63 a billable code?

No. E63 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is E63 in?

E63 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E63 become effective?

E63 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E63?

E63 belongs to category E63, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.