2026 ICD-10-CM Diagnosis Code K92.9Disease of digestive system, unspecified

ICD-10-CM Codes›K00–K95›K90-K95›K92

ICD-10-CM K92.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K92.9 is a billable ICD-10-CM diagnosis code for disease of digestive system, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K92.9
Billable Status
Yes — Valid for Submission
Code Describes
Disease of digestive system, unspecified
Short Description
Disease of digestive system, unspecified
Same as the full description in the CMS dataset.
Parent Code
K92
Other diseases of digestive system

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK90-K95Other diseases of the digestive system
CategoryK92Other diseases of digestive system
This CodeK92.9Disease of digestive system, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute digestive system disorder
  • Allergic disorder of digestive system
  • Arthropathy associated with non-infective gastrointestinal disorder
  • Chronic digestive system disorder
  • Disorder of digestive organ
  • Disorder of digestive system
  • Disorder of digestive tract
  • Disorder of gastrointestinal tract
  • Disorder of gastrointestinal tract caused by antiretroviral drug
  • Disorder of gastrointestinal tract co-occurrent with human immunodeficiency virus infection
  • Disorder of gastrointestinal tract due to systemic lupus erythematosus
  • Disorder of lower gastrointestinal tract
  • Disorder of upper digestive tract
  • Disorder of upper gastrointestinal tract
  • Fecal incontinence due to anorectal disorder
  • Gastrointestinal complication
  • Gastrointestinal disorder caused by drug
  • Gastrointestinal lesion with sepsis
  • Gastrointestinal sequelae of disorders
  • Gastrointestinal tract disease treatment started
  • Gastrointestinal tract problem
  • Gastrointestinal tract treatment changed
  • Pangastrointestinal system dysfunction
  • Sequelae of gastrointestinal disorders
  • Subepithelial lesion of gastrointestinal tract

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.

    • Complication(s) (from) (of)
      • gastrointestinal
    • Disease, diseased
      • digestive system
    • Disease, diseased
      • gastrointestinal (tract)
    • Disorder(of)
      • digestive (system)
    • Disorder(of)
      • gastrointestinal (functional) NOS
    • Problem(with) (related to)
      • digestive

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

Patient EducationClinical

Digestive Diseases

When you eat, your body breaks food down to a form it can use to build and nourish cells and provide energy. This process is called digestion.

Read the full article at MedlinePlus

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

Convert K92.9 to ICD-9-CMHistory

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

ICD-9-CM
569.9 Intestinal disorder NOS
Approximate The match is approximate rather than exact.

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 K92.9Overview

Is K92.9 (Other diseases of digestive system) a billable code?

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

What MS-DRG does K92.9 group to?

When disease of digestive system, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K92.9?

Under the General Equivalence Mappings, disease of digestive system, unspecified converts to ICD-9-CM 569.9 (intestinal disorder NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.