2026 ICD-10-CM Diagnosis Code K94.23Gastrostomy malfunction

ICD-10-CM Codes›K00–K95›K90-K95›K94

ICD-10-CM K94.23
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K94.23 is a billable ICD-10-CM diagnosis code for gastrostomy malfunction. 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. Coders also document this condition as complication of gastrostomy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative digestive system complication.

Code Identity

ICD-10-CM Code
K94.23
Billable Status
Yes — Valid for Submission
Code Describes
Gastrostomy malfunction
Short Description
Gastrostomy malfunction
Same as the full description in the CMS dataset.
Parent Code
K94.2
Gastrostomy complications

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK90-K95Other diseases of the digestive system
CategoryK94Complications of artificial openings of the digestive system
This CodeK94.23Gastrostomy malfunction

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Complication of gastrostomy
  • Gastrostomy malfunction
  • Malfunction of gastrostomy tube
  • Migration of percutaneous endoscopic gastrostomy tube
  • Stenosis of gastrostomy stoma
  • Stenosis of stoma

Tabular List NotesGuidance

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

Inclusion Terms

  • Mechanical complication of gastrostomy

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)
      • gastrostomy (stoma)
        • malfunction
    • Complication(s) (from) (of)
      • gastrostomy (stoma)
        • mechanical
    • Dysfunction
      • gastrostomy (stoma)
    • Malfunction
      • gastrostomy
    • Stoma malfunction
      • gastrostomy
    • Stricture
      • stoma (following) (of)
        • gastrostomy

Clinical ClassificationClinical

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

CCSR DIG024
Postprocedural or postoperative digestive system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Ostomy

An ostomy is surgery to create an opening (stoma) from an area inside the body to the outside. It treats certain diseases of the digestive or urinary systems. It can be permanent, when an organ must be removed. It can be temporary, when the organ needs time to heal. The organ could be the small intestine, colon, rectum, or bladder.

Read the full article at MedlinePlus

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

Convert K94.23 to ICD-9-CMHistory

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

ICD-9-CM
536.42 Gastrostomy comp - mech
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 K94.23Overview

Is K94.23 (Gastrostomy complications) a billable code?

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

What MS-DRG does K94.23 group to?

When gastrostomy malfunction 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 K94.23?

Under the General Equivalence Mappings, gastrostomy malfunction converts to ICD-9-CM 536.42 (gastrostomy comp - mech). The mapping is a direct match.

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.