E56Header code — not billable

Other vitamin deficiencies

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E56
Effective date
October 1, 2026

Related codes in category E56

E56.0Deficiency of vitamin EYesE56.1Deficiency of vitamin KYesE56.8Deficiency of other vitaminsYesE56.9Vitamin deficiency, unspecifiedYes

Frequently asked questions

What is ICD-10 code E56?

E56 is an ICD-10-CM diagnosis code for Other vitamin deficiencies.

Is E56 a billable code?

No. E56 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 E56 in?

E56 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E56 become effective?

E56 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E56?

E56 belongs to category E56, 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.