GC00.3

ICD-11 MMS 2026-01

Interstitial cystitis

Description

A condition characterised by inflammation of the urinary bladder and ureters. This condition may be associated with a malformation of, or injury to, the bladder epithelium, infection with toxins, an autoimmune reaction, or an allergy. This condition may also present with Hunner ulcers diffuse glomerulations affecting all quadrants of the bladder mucosa, mild to severe chronic bladder pressure, bladder pain, urgency to urinate, and low volumes of urine.

Index terms

  • Interstitial cystitis
  • Hunner ulcer
  • elusive ulcer
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  • submucous cystitis
  • ulcerative cystitis

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

  • GC00.0 – Trigonitis
  • GC00.1 – Infectious cystitis
  • GC00.2 – Contracted urinary bladder
  • GC00.Y – Other specified cystitis
  • GC00.Z – Cystitis, unspecified

Foundation entity

Interstitial cystitis – http://id.who.int/icd/entity/1650709285

Allowed postcoordination axes

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