Collagenous colitis

Description

Collagenous colitis is characterised by chronic watery diarrhoea, normal radiological and endoscopic appearance of the colon, and a specific histopathological feature consisting in the presence of a subepithelial collagen band (10 mm or more) adjacent to the basal membrane, together with epithelial lymphocyte infiltration and chronic inflammation of the lamina propria.

Index terms

Collagenous colitis

Exclusions from above levels

http://id.who.int/icd/entity/588616678 – Gastroenteritis or colitis of infectious origin
http://id.who.int/icd/entity/598093212 – Inflammatory bowel diseases
01 – Certain infectious or parasitic diseases

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02 – Neoplasms
05 – Endocrine, nutritional or metabolic diseases
06 – Mental, behavioural or neurodevelopmental disorders
18 – Complications of pregnancy, childbirth and the puerperium
22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

DB33.11 – Lymphocytic colitis
DB33.1Y – Other specified microscopic colitis
DB33.1Z – Microscopic colitis, unspecified

Foundation entity

Collagenous colitis – http://id.who.int/icd/entity/1322041450

Allowed postcoordination axes

Part of: DB33.1: Microscopic colitis › DB33: Certain noninfectious colitis or proctitis › 13: Diseases of the digestive system