GC00.0

ICD-11 MMS 2026-01

Trigonitis

Description

A condition of the bladder that is frequently idiopathic. This condition is characterised by inflammation of the nonkeratinizing squamous metaplasia in the trigone region of the bladder.

Index terms

  • Trigonitis
  • bladder trigonitis
  • pseudomembranous trigonitis
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  • Urethrotrigonitis

Exclusions from above levels

  • GA91.2 – Prostatocystitis
  • http://id.who.int/icd/entity/1746821938 – Urolithiasis
  • JA62 – Infections of genitourinary tract in pregnancy
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  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • GC00.1 – Infectious cystitis
  • GC00.2 – Contracted urinary bladder
  • GC00.3 – Interstitial cystitis
  • GC00.Y – Other specified cystitis
  • GC00.Z – Cystitis, unspecified

Foundation entity

Trigonitis – http://id.who.int/icd/entity/1938116176

Allowed postcoordination axes

Part of: GC00: Cystitis › 16: Diseases of the genitourinary system