E56: Other vitamin deficiencies
Codes under E56 (Other vitamin deficiencies). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| E56.0 | Deficiency of vitamin E | ✓ |
| E56.0 | Deficiency of vitamin E | ✓ |
| E56.1 | Deficiency of vitamin K | ✓ |
| E56.1 | Deficiency of vitamin K | ✓ |
| E56.8 | Deficiency of other vitamins | ✓ |
| E56.8 | Deficiency of other vitamins | ✓ |
| E56.9 | Vitamin deficiency, unspecified | ✓ |
| E56.9 | Vitamin deficiency, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code E56?
E56 is an ICD-10-CM category covering Other vitamin deficiencies. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is E56 a billable code?
No — E56 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example E56.0 — Deficiency of vitamin E). 8 of the 8 codes under E56 are billable.
What codes fall under E56?
E56 includes E56.0, E56.0, E56.1, E56.1, E56.8, plus 3 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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