16Diseases of the genitourinary system
Diseases of the urinary system
Certain specified diseases of urinary system
GC00
category
Cystitis
Definition A condition of the bladder, caused by infection, reaction to pharmacological agents, exposure to radiation therapy, or potential irritants. This condition is characterised by inflammation of the urinary bladder, dysuria, pollakiuria, fever, or flank pain.
Nearby in Certain specified diseases of urinary system
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.
View this entity in the official WHO ICD-11 browser .
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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