ICD-11 classes
13 Diseases of the digestive system
Diseases of large intestine
DB33 — Certain noninfectious colitis or proctitis
DB33.2 — Allergic or dietetic colitis

ICD-11 DB33.2 — Allergic or dietetic colitis

Colitis and proctitis due to allergic disorders including food allergy. This category includes both immediate-type (IgE mediated) and non-igE-mediated colonic hypersensitivity, and eosinophilic disorders of large intestine. Food protein-induced proctitis/colitis of infants is also included here.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code DB33.2 contains 3 clarifying diagnoses:

1. DB33.20 — Food protein-induced proctitis or colitis of infants
2. DB33.2Y — Other specified allergic or dietetic colitis
3. DB33.2Z — Allergic or dietetic colitis, unspecified

The diagnosis is coded elsewhere:

• Allergic or hypersensitivity disorders involving the gastrointestinal tract #3858
• Allergic or dietetic colitis #3867
• Food-induced gastrointestinal hypersensitivity #3928
• Allergic or dietetic colitis #3930