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

ICD-11 DB33 — Certain noninfectious colitis or proctitis

Noninfectious colitis and proctitis is inflammation or tissue defect in the large intestine of non-infectious origin, but not included in inflammatory bowel diseases, including specific type of colitis, colitis due to medication including chemotherapy or radiation therapy side effects; or allergic or systemic disorders.

The diagnosis includes nothing.

It excludes 2 items.

  • Inflammatory bowel diseases (DD70-DD7Z)
  • Gastroenteritis or colitis of infectious origin (1A00-1A40.Z)

Diagnosis with code DB33 contains 7 clarifying diagnoses:

  1. DB33.0 — Primary ulcer of colon
  2. DB33.1 — Microscopic colitis
    It contains 4 clarifying diagnoses.
  3. DB33.2 — Allergic or dietetic colitis
    It contains 3 clarifying diagnoses.
  4. DB33.3 — Diversion colitis
  5. DB33.4 — Colitis or proctitis due to external causes
    It contains 6 clarifying diagnoses.
  6. DB33.Y — Other specified noninfectious colitis or proctitis
  7. DB33.Z — Certain noninfectious colitis or proctitis, unspecified

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