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K90.0 ICD-10-CM Code: Celiac disease

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
3 inclusion terms · 1 Excludes1 · 3 use-additional codes · 1 code-also instruction
Risk adjustment
RxHCC V08 category 66

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43, Appendix B.

  • MS-DRG 391 — ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITH MCC (MDC 06)
  • MS-DRG 392 — ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC (MDC 06)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for K90.0 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on K90.0 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

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

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from K90

Code Also

Additional codes that may be required to fully describe the encounter.

  • exocrine pancreatic insufficiency (K86.81)

Use Additional Code

Supplementary codes the tabular list directs you to add.

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

Coder workflow for K90.0

MedCoder structured workflow — derived from this code’s own official record

Before you code K90.0

  1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with K90.0. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the documentation support a condition named in K90.0’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewK91.2

Consider K90.0. Then work the Use Additional Code note and review the Code Also note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

  • Excludes1 — check before selecting K90.0(1 note)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with K90.0: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareK91.2

    See the official tabular notes · Guidelines I.A.12.a

  • Use Additional Code — after identifying K90.0(3 notes)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with K90.0 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    ReviewL13.0, G32.81

    See the official tabular notes · Guidelines I.A.13

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    ReviewK86.81

    See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: Both the condition K90.0 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewK91.2

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with K90.0?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

ReviewL13.0, G32.81

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Celiac disease is a billable ICD-10-CM diagnosis code (K90.0).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (28)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Official Coding Guidelines

No excerpt in the ICD-10-CM Official Guidelines names this code specifically. Its chapter carries only this chapter-wide note:

Chapter 11: Diseases of the Digestive System (K00-K95)

Reserved for future guideline expansion

Decision Points

The directives on this code's own record, as a pre-claim checklist.

  1. 3 Use Additional Code instructions — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
  2. 1 Code Also note — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
  3. 1 Excludes1 entry — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name K90.0 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 10 Excludes1 notes across 2 chapters: E40 — Kwashiorkor (via K90.-), E40-E46 — Malnutrition (E40-E46) (via K90.-), E41 — Nutritional marasmus (via K90.-), E42 — Marasmic kwashiorkor (via K90.-), E43 — Unspecified severe protein-calorie malnutrition (via K90.-), E44 — Protein-calorie malnutrition of moderate and mild degree (via K90.-), E45 — Retarded development following protein-calorie malnutrition (via K90.-), E46 — Unspecified protein-calorie malnutrition (via K90.-), E55.0 — Rickets, active, K59 — Other functional intestinal disorders (via K90.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 1 Excludes2 note: K90.4 — Other malabsorption due to intolerance.

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 1 Code First instruction: G32.81 — Cerebellar ataxia in diseases classified elsewhere.

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 2 MS-DRGs: DRG 391 (MDC 06), DRG 392 (MDC 06).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):DIG025 — Other specified and unspecified gastrointestinal disorders (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other specified and unspecified gastrointestinal disorders).

K63.829 — Intestinal methanogen overgrowth, unspecified, K63.89 — Other specified diseases of intestine, K63.9 — Disease of intestine, unspecified, K66.0 — Peritoneal adhesions (postprocedural) (postinfection), K66.1 — Hemoperitoneum, K66.8 — Other specified disorders of peritoneum, K66.9 — Disorder of peritoneum, unspecified, K68.2 — Retroperitoneal fibrosis, K68.3 — Retroperitoneal hematoma, K68.9 — Other disorders of retroperitoneum, K90.1 — Tropical sprue, K90.2 — Blind loop syndrome, not elsewhere classified, K90.4 — Other malabsorption due to intolerance, K90.41 — Non-celiac gluten sensitivity, K90.49 — Malabsorption due to intolerance, not elsewhere classified, K90.81 — Whipple's disease, K90.821 — Short bowel syndrome with colon in continuity, K90.822 — Short bowel syndrome without colon in continuity, K90.829 — Short bowel syndrome, unspecified, K90.83 — Intestinal failure, +64 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Morbus”, “Ataxia, ataxy, ataxic”, “Infancy, infantile, infantilism”, …; these codes share that main term but sit in a different category of the Tabular List.

I69.293 — Ataxia following other nontraumatic intracranial hemorrhage (following, cerebrovascular disease, nontraumatic intracranial hemorrhage NEC), I69.393 — Ataxia following cerebral infarction (following, cerebrovascular disease, cerebral infarction), I69.893 — Ataxia following other cerebrovascular disease (following, cerebrovascular disease, specified disease NEC), I69.993 — Ataxia following unspecified cerebrovascular disease (following, cerebrovascular disease), I77.4 — Celiac artery compression syndrome (artery compression syndrome), I95.2 — Hypotension due to drugs (nitritoid), K52.22 — Food protein-induced enteropathy (food protein-induced), K55.059 — Acute (reversible) ischemia of intestine, part and extent unspecified (hemorrhagic, terminal), K63.9 — Disease of intestine, unspecified, K86.89 — Other specified diseases of pancreas (pancreatic), M16.9 — Osteoarthritis of hip, unspecified (coxae senilis), M35.9 — Systemic involvement of connective tissue, unspecified (gluten), M95.5 — Acquired deformity of pelvis (pelvis), N13.8 — Other obstructive and reflux uropathy (Dietl's), N25.0 — Renal osteodystrophy (renal), N28.0 — Ischemia and infarction of kidney (renal), O33.1 — Maternal care for disproportion due to generally contracted pelvis (pelvis, with disproportion), O65.1 — Obstructed labor due to generally contracted pelvis (pelvis, with disproportion, causing obstructed labor), P53 — Hemorrhagic disease of newborn (hemorrhagicus neonatorum), P54.5 — Neonatal cutaneous hemorrhage (maculosus neonatorum), +44 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Fecal Occult Blood Test (FOBT), Iron Panel, Partial Thromboplastin Time (PTT) Test, Prothrombin Time Test and INR (PT/INR)

Contextual Map

Every relationship of K90.0 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run K90.0 with these 12 related codes in Claim Check

Hierarchy

Use Additional Code

Code Also

Referenced by Excludes1 notes (10)

Referenced by Excludes2 notes

Referenced by Code First instructions

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 06 — Diseases and Disorders of the Digestive System[MDC crossing]: “Diseases and Disorders of the Digestive System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 5,744 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries (28)

  • Ataxia, ataxy, ataxic, gluten, with celiac disease[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Celiac, disease (with steatorrhea)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Celiac, infantilism[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Crisis, celiac[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disease, diseased, celiac (adult) (infantile) (with steatorrhea)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disease, diseased, Gee (-Herter) (-Heubner) (-Thaysen) (nontropical sprue)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disease, diseased, Herter (-Gee) (-Heubner) (nontropical sprue)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Disease, diseased, Heubner-Herter (nontropical sprue)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 20 more

Nearest codes (16)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "K90.0 — Celiac disease." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/k90.0-celiac-disease

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Celiac disease

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to K90.0 in its code family, with their registry titles.

View all codes in the K90 family