ICD-10 Code K90.41 – Non-celiac gluten sensitivity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K90.41 – Non-celiac gluten sensitivity
What it is
K90.41 identifies non-celiac gluten sensitivity, a condition where gluten causes symptoms in someone who does not have celiac disease. Use it when the chart documents gluten-related symptoms without evidence of celiac disease.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include abdominal discomfort, bloating, diarrhea, or non-gastrointestinal complaints after gluten exposure, with celiac disease and wheat allergy excluded.
When to use this code
Use K90.41 when the provider specifically documents non-celiac gluten sensitivity, gluten sensitivity, or similar wording. It also fits cases where symptoms are linked to gluten intake and the record states celiac disease is not present. Check documentation if the diagnosis is uncertain.
Do not use for
Do not use this code for celiac disease, wheat allergy, or nonspecific abdominal symptoms without a documented gluten sensitivity diagnosis. If the note only says “gluten-free diet” or “possible intolerance,” check documentation.
Coding tip
Code from the provider’s explicit diagnosis, not from diet history alone.