ICD-10 Code E63.1 – Imbalance of Constituents of Food Intake (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E63.1 – Imbalance of constituents of food intake
What it is
E63.1 identifies an imbalance in the proportions of nutrients in the diet. Use it when documentation describes an abnormal mix of food constituents rather than a single nutrient deficiency or excess.
Clinical signs
Clinical features vary; refer to documentation. You may see notes describing poor dietary balance, inadequate variety, or an intake pattern that does not meet nutritional needs.
When to use this code
Use this code when the provider documents an imbalance of dietary constituents as the diagnosis or a significant nutrition-related problem. It fits situations where the chart points to an overall unbalanced intake, not a specific deficiency disease.
It may also apply when the record identifies diet composition as the issue and no more specific ICD-10-CM code is documented. Check documentation if the note instead supports malnutrition, vitamin deficiency, or another defined disorder.
Do not use for
Do not use E63.1 for isolated vitamin, mineral, or protein deficiencies when a more specific code is documented. Do not use it for general undernutrition or obesity-related dietary counseling.
Coding tip
Code E63.1 only when the provider clearly documents an imbalance of food constituents and no more specific nutritional diagnosis is supported.