2026 ICD-10-CM Diagnosis Code K59.2Neurogenic bowel, not elsewhere classified
ICD-10-CM Codes›K00–K95›K55-K64›K59
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 15 closely related codes. 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
Code Classification
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.
Neurogenic See Also: condition;
bowel NEC K59.2
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
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Convert K59.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K59.2Overview
What is the ICD-10 code for neurogenic bowel, not elsewhere classified?
The ICD-10-CM code for neurogenic bowel, not elsewhere classified is K59.2 (sometimes written as K592). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
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.
Is K59.2 a CC or MCC?
CMS lists K59.2 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 15 closely related codes in its exclusion list.
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.
