2026 ICD-10-CM Diagnosis Code K90.0Celiac disease

ICD-10-CM Codes›K00–K95›K90-K95›K90

ICD-10-CM K90.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K90.0 is a billable ICD-10-CM diagnosis code for celiac disease. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K90.0
Billable Status
Yes — Valid for Submission
Code Describes
Celiac disease
Short Description
Celiac disease
Same as the full description in the CMS dataset.
Parent Code
K90
Intestinal malabsorption

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK90-K95Other diseases of the digestive system
CategoryK90Intestinal malabsorption
This CodeK90.0Celiac disease

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Adult form of celiac disease
  • Celiac crisis
  • Celiac disease
  • Celiac disease with diffuse intestinal ulceration
  • Celiac disease with epilepsy and cerebral calcification syndrome
  • Celiac rickets
  • Dementia due to celiac disease
  • Duodenal ulcer due to celiac disease
  • Duodenitis due to celiac disease
  • Gingival disease due to celiac disease
  • Iron deficiency anemia due to celiac disease
  • Megaloblastic anemia due to celiac disease
  • Megaloblastic anemia due to disease of small intestine
  • Megaloblastic anemia due to impaired absorption of folate
  • Microscopic enteritis
  • Refractory celiac disease
  • Sprue
  • Transient gluten intolerance
  • Unclassified sprue

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Celiac disease with steatorrhea
  • Celiac gluten-sensitive enteropathy
  • Nontropical sprue

Code Also

  • exocrine pancreatic insufficiency K86.81

Use Additional Code

  • code for associated disorders including:
  • dermatitis herpetiformis L13.0
  • gluten ataxia G32.81

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.

    • Ataxia, ataxy, ataxic
      • gluten
        • with celiac disease
    • Celiac
      • disease (with steatorrhea)
    • Celiac
      • infantilism
    • Crisis
      • celiac
    • Disease, diseased
      • celiac (adult) (infantile) (with steatorrhea)
    • Disease, diseased
      • Gee (-Herter) (-Heubner) (-Thaysen) (nontropical sprue)
    • Disease, diseased
      • Herter (-Gee) (-Heubner) (nontropical sprue)
    • Disease, diseased
      • Heubner-Herter (nontropical sprue)
    • Disease, diseased
      • Thaysen-Gee (nontropical sprue)
    • Enteropathy
      • celiac-gluten-sensitive
    • Gee(-Herter)(-Thaysen) disease (nontropical sprue)
    • Herter-Gee syndrome
    • Heubner-Herter disease
    • Infancy, infantile, infantilism
      • celiac
    • Infancy, infantile, infantilism
      • Herter's (nontropical sprue)
    • Infancy, infantile, infantilism
      • intestinal
    • Morbus
      • celiacus
    • Psilosis(sprue) (tropical)
      • nontropical
    • Rickets(active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal)
      • celiac
    • Sprue(tropical)
      • celiac
    • Sprue(tropical)
      • nontropical
    • Steatorrhea(chronic)
      • primary
    • Syndrome
      • celiac
    • Syndrome
      • Gee-Herter-Heubner
    • Syndrome
      • Herter (-Gee) (nontropical sprue)
    • Syndrome
      • Heubner-Herter
    • Thaysen-Gee disease(nontropical sprue)
    • Thaysen's disease

Clinical ClassificationClinical

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

CCSR DIG025
Other specified and unspecified gastrointestinal disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Celiac Disease

    a malabsorption syndrome that is precipitated by the ingestion of foods containing gluten, such as wheat, rye, and barley. it is characterized by inflammation of the small intestine, loss of microvilli structure, failed intestinal absorption, and malnutrition.

Patient EducationClinical

Celiac Disease

Celiac disease is a chronic (long-term) digestive and immune disorder that damages your small intestine. The damage may prevent your body from absorbing vitamins, minerals, and other nutrients from the food you eat. This can lead to malnutrition and other serious health problems

The full article covers:

  • What is celiac disease?
  • What causes celiac disease?
  • Who is more likely to develop celiac disease?
  • What are the symptoms of celiac disease?
  • What other problems can celiac disease cause?
  • How is celiac disease diagnosed?
  • What are the treatments for celiac disease?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K90.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
579.0 Celiac disease
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K90.0Overview

Is K90.0 (Intestinal malabsorption) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report celiac disease on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K90.0 group to?

When celiac disease 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 K90.0?

Under the General Equivalence Mappings, celiac disease converts to ICD-9-CM 579.0 (celiac disease). The mapping is a direct match.

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.