Is E56.1 a billable ICD-10 code?

Yes. E56.1 (Deficiency of vitamin K) is billable and can be used for insurance claims. Always verify payer-specific requirements.

E56.1 ✓ Billable

Deficiency of vitamin K

Q: What is ICD-10 code E56.1?

ICD-10-CM code E56.1 stands for "Deficiency of vitamin K". 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

E56.1

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 E56.1?

ICD-10-CM code E56.1 represents Deficiency of vitamin K. It is a billable diagnosis code in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.

Is E56.1 billable?

Yes. E56.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is E56.1 in?

E56.1 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.

Related codes in the E56 category

E56 Other vitamin deficiencies Non-billable E56.0 Deficiency of vitamin E Billable E56.8 Deficiency of other vitamins Billable E56.9 Vitamin deficiency, unspecified Billable

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