K58.9 ICD-10-CM Code: Irritable bowel syndrome, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
K58.9Irritable bowel syndrome, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where K58.9 sits
- 1
Chapter 11
Diseases of the digestive system (K00-K95)
- 2
Section
Other diseases of intestines (K55-K64)
- 3
Category K58
Irritable bowel syndrome
- 4
Code K58.9
Irritable bowel syndrome, unspecified
Documentation details
Notes for this code
Inclusion terms
- Irritable bowel syndrome NOS
Code first
No “code first” instruction is listed for K58.9.
Use additional code
No “use additional code” instruction is listed for K58.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for K58.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for K58.9.
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 K58.9 mean?
K58.9 is the FY 2027 U.S. ICD-10-CM code for “Irritable bowel syndrome, unspecified.”
Is K58.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, K58.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is K58.9 located in ICD-10-CM?
K58.9 is listed in Chapter 11, Diseases of the digestive system (K00-K95), within Other diseases of intestines (K55-K64) (K55–K64), under category K58, Irritable bowel syndrome.
What coding notes are listed for K58.9?
Its listed inclusion terms are Irritable bowel syndrome NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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