2026 ICD-10-CM Diagnosis Code K90.41Non-celiac gluten sensitivity

ICD-10-CM Codes›K00–K95›K90-K95›K90

ICD-10-CM K90.41
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

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. 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

ICD-10-CM Code
K90.41
Billable Status
Yes — Valid for Submission
Code Describes
Non-celiac gluten sensitivity
Short Description
Non-celiac gluten sensitivity
Same as the full description in the CMS dataset.
Parent Code
K90.4
Other malabsorption due to intolerance

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK90-K95Other diseases of the digestive system
CategoryK90Intestinal malabsorption
This CodeK90.41Non-celiac gluten sensitivity

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

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Enteropathy
      • celiac-gluten-sensitive
        • non-celiac
    • Intolerance
      • gluten
    • Sensitive, sensitivity
      • gluten (non-celiac)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INJ031
Allergic reactions
Default principal diagnosis: inpatient No · outpatient No
CCSR DIG025
Other specified and unspecified gastrointestinal disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

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.

ICD-9-CM
579.8 Intest malabsorption NEC
Approximate The match is approximate rather than exact.

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
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K90.41Overview

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.

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.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.