ICD-10 E56.1
Billable / SpecificDeficiency of vitamin K
About ICD-10-CM E56.1
ICD-10-CM code E56.1 represents Deficiency of vitamin K. This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E56). The 2026 edition of ICD-10-CM E56.1 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with E56.1. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- deficiency of coagulation factor due to vitamin K deficiency (D68.4)
- vitamin K deficiency of newborn (P53)
Medicare LCD Coverage for E56.1
Local Coverage Determinations (LCDs) from CMS MACs that list E56.1 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E56.1.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but E56.1 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with E56.1
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert E56.1 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| E56.1 | 2690 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To E56.1
Other codes in section E50-E64 (Other nutritional deficiencies).
ICD-10 E56.1, Billing FAQ
Is ICD-10 code E56.1 billable? +
Yes, E56.1 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for E56.1? +
Type 1 Excludes (never code together with E56.1): deficiency of coagulation factor due to vitamin K deficiency (D68.4); vitamin K deficiency of newborn (P53)
What ICD-9 codes does E56.1 map to? +
Per CMS GEMs, E56.1 maps to ICD-9 codes: 2690. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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