GB56.2

ICD-11 MMS 2026-01

Hydronephrosis with ureteral orifice obstruction

Description

Dilatation of the renal pelvis and calyces associated with (and presumably due to) obstruction of the ureter at the insertion into the bladder and hence ascending back pressure.

Index terms

  • Hydronephrosis with ureteral orifice obstruction
  • Hydronephrosis with ureteral orifice obstruction, acquired
  • Hydronephrosis with ureteral orifice obstruction, acquired, due to cause classified elsewhere
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  • Calculus of ureter with calculus of kidney and hydronephrosis
  • hydronephrosis with renal and ureteral calculous obstruction
  • Calculus of ureter with hydronephrosis
  • Chronic pyelonephritis with calculus and hydronephrosis
  • Chronic pyelitis with calculus and hydronephrosis
  • Pyelitis with calculus and hydronephrosis, not otherwise specified
  • Urinary tract calculus with hydronephrosis
  • Hydronephrosis with ureteral orifice obstruction, congenital
  • Pyelonephritis with calculus and hydronephrosis, not otherwise specified

Excludes

  • GB58 – with infection

Exclusions from above levels

  • GB55 – Obstructive pyelonephritis
  • http://id.who.int/icd/entity/1746821938 – Calculus of kidney and ureter without hydronephrosis
  • 4A43.2Y – Sjögren syndrome with renal tubulo-interstitial disorders
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  • 4B22 – Renal tubulo-interstitial disorders in simple cryoglobulinaemia
  • 5C60.1 – Renal tubulo-interstitial disorders in cystinosis
  • GB82 – Autosomal dominant tubulointerstitial disease
  • GB90.Y – pyeloureteritis cystica
  • 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

  • GB56.0 – Hydronephrosis with ureteropelvic junction obstruction
  • GB56.1 – Hydronephrosis with ureteral obstruction
  • GB56.3 – Hydronephrosis due to bladder obstruction
  • GB56.4 – Other or unspecified hydronephrosis
  • GB56.5 – Hydronephrosis and reflux nephropathy with vesicoureteral or vesico-uretero-renal reflux
  • GB56.Y – Other specified obstructive or reflux nephropathy
  • GB56.Z – Obstructive or reflux nephropathy, unspecified

Foundation entity

Hydronephrosis with ureteral orifice obstruction – http://id.who.int/icd/entity/930964872

Allowed postcoordination axes

Part of: GB56: Obstructive or reflux nephropathy › 16: Diseases of the genitourinary system