ICD-10 Code E56.0 – Deficiency of vitamin E (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E56.0 – Deficiency of vitamin E
What it is
E56.0 identifies a deficiency of vitamin E, a fat-soluble vitamin needed for normal antioxidant protection and neurologic function. Use it when the record documents vitamin E deficiency or hypovitaminosis E.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include neurologic problems such as peripheral neuropathy, ataxia, or muscle weakness, and sometimes hemolytic anemia in severe deficiency.
When to use this code
Use E56.0 when the clinician explicitly diagnoses vitamin E deficiency, including malabsorption-related deficiency or nutritional deficiency. It also fits when the chart documents low vitamin E with compatible clinical findings and the provider confirms the condition. Check documentation if the cause is not stated.
Do not use for
Do not use this code for general malnutrition, other vitamin deficiencies, or isolated neurologic symptoms without a documented vitamin E deficiency. If the record only notes risk for deficiency, check documentation.
Coding tip
Code the documented deficiency itself and capture any stated underlying cause when supported by the record.