K52.2
ICD-10Non-billable categoryAllergic and dietetic gastroenteritis and colitis
Official ICD-10-CM descriptor (FY2026)
Allergic and dietetic gastroenteritis and colitis
K52.2 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Food hypersensitivity gastroenteritis or colitis
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- allergic eosinophilic colitis (K52.82)
- allergic eosinophilic esophagitis (K20.0)
- allergic eosinophilic gastritis (K52.81)
- allergic eosinophilic gastroenteritis (K52.81)
Use additional code
Report an additional code to identify the associated condition.
- code to identify type of food allergy (Z91.01-, Z91.02-)
ICD-10-CM FY2026 defines 3 codes beneath K52.2. See the ICD-10-CM index for what this site publishes.
Related codes in K52
Where this code sits
- Parent code
- K52
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.