ICD-10 Code E63.8 – Other specified nutritional deficiencies (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E63.8 – Other specified nutritional deficiencies
What it is
E63.8 identifies a nutritional deficiency that does not fit a more specific ICD-10 category. Use it when the record documents a defined deficiency, but no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Findings may reflect the specific missing nutrient, such as poor intake, weight loss, fatigue, or other deficiency-related symptoms.
When to use this code
Use E63.8 when the clinician documents an “other specified” nutritional deficiency and the condition is not covered by a more precise code. It may apply when the chart identifies a deficiency state without naming a standard deficiency code. Check documentation for the exact nutrient or cause.
Do not use for
Do not use this code when a more specific nutritional deficiency code is documented. Avoid it for general malnutrition or nonspecific poor nutrition unless the record clearly supports E63.8.
Coding tip
Look for the exact deficiency named in the note before assigning E63.8.