ICD-10 Code E63 – Other nutritional deficiencies (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E63 – Other nutritional deficiencies
What it is
E63 groups nutritional deficiency conditions that do not fit a more specific ICD-10 code. Use it when documentation identifies a general or unspecified deficiency of nutrients.
Clinical signs
Clinical features vary; refer to documentation. Findings may include weight loss, poor intake, weakness, or other signs of inadequate nutrition, but you should code only what is clearly documented.
When to use this code
Use E63 when the record states an other nutritional deficiency and no more specific deficiency is named. It may also apply when the clinician documents a nutritional deficiency that is not otherwise classified in ICD-10-CM. Check documentation if the cause or specific nutrient is identified elsewhere.
Do not use for
Do not use E63 when the chart identifies a specific deficiency, such as a single vitamin or mineral deficiency. It is also the wrong choice if the condition is better described by malnutrition or another metabolic disorder.
Coding tip
Look for the exact nutrient or deficiency term first; code E63 only when the documentation remains nonspecific.