2026 ICD-10-CM Diagnosis Code K90.41Non-celiac gluten sensitivity
ICD-10-CM Codes›K00–K95›K90-K95›K90
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
K90.41 is a billable ICD-10-CM diagnosis code for non-celiac gluten sensitivity. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 391 through 392. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 14 closely related codes. Coders also document this condition as gluten intolerance. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Allergic reactions and Other specified and unspecified gastrointestinal disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Gluten intolerance
- Non-celiac gluten sensitivity
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Gluten sensitivity NOS
- Non-celiac gluten sensitive enteropathy
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
gluten K90.41
Sensitive, sensitivity See Also: Allergy;
gluten (non-celiac) K90.41
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Gluten Sensitivity
Gluten is a protein found in wheat, rye, and barley. It is found mainly in foods. But it may also be in other products like medicines, vitamins, and supplements. People with gluten sensitivity have problems with gluten. Gluten sensitivity may sometimes be called non-celiac gluten sensitivity or gluten intolerance.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K90.41 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code History & ChangesHistory
Replacement K90.41 replaces the following previously assigned code(s):
- K90.4 - Malabsorption due to intolerance, not elsewhere classified
- K90.4 - Other malabsorption due to intolerance
Questions About K90.41Overview
What is the ICD-10 code for non-celiac gluten sensitivity?
The ICD-10-CM code for non-celiac gluten sensitivity is K90.41 (sometimes written as K9041). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is K90.41 (Other malabsorption due to intolerance) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report non-celiac gluten sensitivity on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K90.41 group to?
When non-celiac gluten sensitivity is the principal diagnosis on an inpatient stay, it groups to MS-DRG 391, 392, with relative weights from 0.7796 to 1.2683 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K90.41 a CC or MCC?
CMS lists K90.41 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 14 closely related codes in its exclusion list.
What is the ICD-9 equivalent of K90.41?
Under the General Equivalence Mappings, non-celiac gluten sensitivity converts to ICD-9-CM 579.8 (intest malabsorption NEC). The mapping is approximate, so confirm the match fits the documentation.
