GB90.1

ICD-11 MMS 2026-01

Hydroureter

Description

A condition caused by obstruction, stricture, or stenosis of the ureter, which may be due to prostatic hypertrophy, carcinoma, retroperitoneal or pelvic neoplasms, calculi, or a congenital anomaly. This condition is characterised by distention of the ureter with urine.

Index terms

  • Hydroureter
  • ureterectasis

Excludes

  • GB58 – Hydroureter with infection
  • GB90.Y – Dilatation of ureter
  • LB31.1 – Congenital primary megaureter

Exclusions from above levels

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

Sibling codes

  • GB90.0 – Nephroptosis
  • GB90.2 – Ureteral kinking or deviation without obstruction
  • GB90.3 – Ischaemia or infarction of kidney
  • GB90.4 – Renal tubular function disorders
  • GB90.Y – Other specified disorders of kidney or ureter

Foundation entity

Hydroureter – http://id.who.int/icd/entity/567819142

Allowed postcoordination axes

Part of: GB90: Certain specified disorders of kidney or ureter › 16: Diseases of the genitourinary system