ICD-10-CM
ICD-10 code for Gastroenteritis: K52.9
The ICD-10-CM index points "Gastroenteritis" to K52 (Other and unspecified noninfective gastroenteritis and colitis), a header that is not billable. When nothing more specific is documented, the billable code is K52.9, Noninfective gastroenteritis and colitis, unspecified.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
- K52.29allergic, Other allergic and dietetic gastroenteritis and colitisBillable
- K52.29dietetic, Other allergic and dietetic gastroenteritis and colitisBillable
- K52.1drug-induced, Toxic gastroenteritis and colitisBillable
- K52.81eosinophilic, Eosinophilic gastritis or gastroenteritisBillable
- A09epidemic (infectious), Infectious gastroenteritis and colitis, unspecifiedBillable
- K52.29food hypersensitivity, Other allergic and dietetic gastroenteritis and colitisBillable
- K52.9noninfectious, Noninfective gastroenteritis and colitis, unspecifiedBillable
- A08.0rotaviral, Rotaviral enteritisBillable
- A02.0Salmonella, Salmonella enteritisBillable
- K52.1toxic, Toxic gastroenteritis and colitisBillable
- A08.4viral NEC, Viral intestinal infection, unspecifiedBillable
More specific codes in K52
A header groups codes and is not billed. A billable code is one you can report.
- K52Other and unspecified noninfective gastroenteritis and colitisHeader
- K52.0Gastroenteritis and colitis due to radiationBillable
- K52.1Toxic gastroenteritis and colitisBillable
- K52.2Allergic and dietetic gastroenteritis and colitisHeader
- K52.21Food protein-induced enterocolitis syndromeBillable
- K52.22Food protein-induced enteropathyBillable
- K52.29Other allergic and dietetic gastroenteritis and colitisBillable
- K52.3Indeterminate colitisBillable
- K52.8Other specified noninfective gastroenteritis and colitisHeader
- K52.81Eosinophilic gastritis or gastroenteritisBillable
- K52.82Eosinophilic colitisBillable
- K52.83Microscopic colitisHeader
- K52.831Collagenous colitisBillable
- K52.832Lymphocytic colitisBillable
- K52.838Other microscopic colitisBillable
- K52.839Microscopic colitis, unspecifiedBillable
- K52.89Other specified noninfective gastroenteritis and colitisBillable
- K52.9Noninfective gastroenteritis and colitis, unspecifiedBillable
Excludes1
Excludes1 means these codes are not reported together.
Related conditions
Related pages
- K52.9 code detailsNotes, nearby codes, CMS-HCC group
- Category K52Every code under it
- Chapter 11Diseases of the digestive system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Gastroenteritis?
The ICD-10-CM index points "Gastroenteritis" to K52 (Other and unspecified noninfective gastroenteritis and colitis), a header that is not billable. When nothing more specific is documented, the billable code is K52.9, Noninfective gastroenteritis and colitis, unspecified.
Is K52.9 billable?
Yes. K52.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to K52.9?
The CDC tabular list gives 5 Excludes1 notes (not coded together) for K52.9 and the categories above it. They are listed on this page.
What chapter is K52.9 in?
Chapter 11. Diseases of the digestive system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.