2026 ICD-10-CM Diagnosis Code K59.2Neurogenic bowel, not elsewhere classified

ICD-10-CM Codes›K00–K95›K55-K64›K59

ICD-10-CM K59.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K59.2 is a billable ICD-10-CM diagnosis code for neurogenic bowel, not elsewhere classified. 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 neurogenic bowel. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K59.2
Billable Status
Yes — Valid for Submission
Code Describes
Neurogenic bowel, not elsewhere classified
Short Description
Neurogenic bowel, not elsewhere classified
Same as the full description in the CMS dataset.
Parent Code
K59
Other functional intestinal disorders

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK59Other functional intestinal disorders
This CodeK59.2Neurogenic bowel, not elsewhere classified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Neurogenic bowel

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.

    • Neurogenic
      • bowel NEC

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

  • Neurogenic Bowel

    loss or absence of normal intestinal function due to nerve damage or birth defects. it is characterized by the inability to control the elimination of stool from the body.

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 K59.2 to ICD-9-CMHistory

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

ICD-9-CM
564.81 Neurogenic bowel
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 K59.2Overview

Is K59.2 (Other functional intestinal disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report neurogenic bowel, not elsewhere classified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K59.2 group to?

When neurogenic bowel, not elsewhere classified 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 K59.2?

Under the General Equivalence Mappings, neurogenic bowel, not elsewhere classified converts to ICD-9-CM 564.81 (neurogenic bowel). 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.