E63: Other nutritional deficiencies
Codes under E63 (Other nutritional deficiencies). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| E63.0 | Essential fatty acid [EFA] deficiency | ✓ |
| E63.0 | Essential fatty acid [EFA] deficiency | ✓ |
| E63.1 | Imbalance of constituents of food intake | ✓ |
| E63.1 | Imbalance of constituents of food intake | ✓ |
| E63.8 | Other specified nutritional deficiencies | ✓ |
| E63.8 | Other specified nutritional deficiencies | ✓ |
| E63.9 | Nutritional deficiency, unspecified | ✓ |
| E63.9 | Nutritional deficiency, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code E63?
E63 is an ICD-10-CM category covering Other nutritional deficiencies. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is E63 a billable code?
No — E63 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 E63.0 — Essential fatty acid [EFA] deficiency). 8 of the 8 codes under E63 are billable.
What codes fall under E63?
E63 includes E63.0, E63.0, E63.1, E63.1, E63.8, 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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