Allergic gastritis

Definition

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)

4 subordinate codes

• DA42.40Allergic gastritis due to IgE-mediated hypersensitivity
• DA42.41Allergic gastritis due to non-IgE-mediated hypersensitivity
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Gastritis

• DA42.0Autoimmune gastritis
• DA42.1Helicobacter pylori induced gastritis
• DA42.2Eosinophilic gastritis
• DA42.3Lymphocytic gastritis
• DA42.5Gastritis due to duodenogastric reflux
• DA42.6Menetrier disease
• DA42.7Gastritis of unknown aetiology with specific endoscopic or pathological features
• DA42.8Gastritis due to external causes