ICD-11 classes
13 Diseases of the digestive system
Diseases of large intestine
DB33 — Certain noninfectious colitis or proctitis
DB33.1 — Microscopic colitis
ICD-11 DB33.1 — Microscopic colitis
A condition of inflammation of the colon that is only detectable when the colon's lining is examined under a microscope. The endoscopic appearance of the inner colon lining is normal. There are two types of microscopic colitis: lymphocytic colitis and collagenous colitis.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code DB33.1 contains 4 clarifying diagnoses:
- DB33.10 — Collagenous colitis
- DB33.11 — Lymphocytic colitis
- DB33.1Y — Other specified microscopic colitis
- DB33.1Z — Microscopic colitis, unspecified