Allergic gastritis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Gastritis due to allergic disorders, principally meaning acute gastritis that occurs secondary to food allergy. But this also includes allergic gastritis due to non-food substances and allergic gastritis due to non-IgE-mediated hypersensitivity. This includes gastroduodenitis and gastroenteritis.

exclusions

• Allergic eosinophilic gastritis  (DA42.2)
• Food-induced eosinophilic gastroenteritis  (4A83.0)

sections/codes in this section ()

• Allergic gastritis due to IgE-mediated hypersensitivity  (DA42.40)
• Allergic gastritis due to non-IgE-mediated hypersensitivity  (DA42.41)
• Other specified allergic gastritis  (DA42.4Y)
• Allergic gastritis, unspecified  (DA42.4Z)

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