13Diseases of the digestive system
Diseases of anal canal
DB71Anal polyp
DB71.2
category
Hypertrophied anal papillae
Definition The enlargement of existing anal papillae is a consequence of chronic inflammation and fibrotic proliferation within the anorectal zone, which is known as hypertrophied or fibrous anal polyp.
Also indexed as
Hypertrophied anal papillae fibrous anal polyp
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
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This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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