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	✓
E63.1	Imbalance of constituents of food intake	✓
E63.8	Other specified nutritional deficiencies	✓
E63.9	Nutritional deficiency, unspecified	✓

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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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