K59 ICD-10-CM Code: Other functional intestinal disorders
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
K59Other functional intestinal disorders
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where K59 sits
- 1
Chapter 11
Diseases of the digestive system (K00-K95)
- 2
Section
Other diseases of intestines (K55-K64)
- 3
Category K59
Other functional intestinal disorders
- 4
Code K59
Other functional intestinal disorders
More specific choices
Codes under K59
K59 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for K59.
Code first
No “code first” instruction is listed for K59.
Use additional code
No “use additional code” instruction is listed for K59.
Excludes1
Conditions that should not be reported together with this code.
- change in bowel habit NOS (R19.4)
- intestinal malabsorption (K90.-)
- psychogenic intestinal disorders (F45.8)
Excludes2
Conditions not included here that may be reported separately when present.
- functional disorders of stomach (K31.-)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code K59 mean?
K59 is the FY 2027 U.S. ICD-10-CM code for “Other functional intestinal disorders.”
Is K59 a billable or specific ICD-10-CM code?
No. K59 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is K59 located in ICD-10-CM?
K59 is listed in Chapter 11, Diseases of the digestive system (K00-K95), within Other diseases of intestines (K55-K64) (K55–K64), under category K59, Other functional intestinal disorders.
What coding notes are listed for K59?
No inclusion terms are listed for K59 in this reference record. No code-first instruction is listed. Excludes1 notes: change in bowel habit NOS (R19.4); intestinal malabsorption (K90.-); psychogenic intestinal disorders (F45.8). Excludes2 notes: functional disorders of stomach (K31.-).
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