LB31.7

ICD-11 MMS 2026-01

Megacystis-megaureter

Description

Megacystic-megaureter syndrome describes the presence of a massive primary non-obstructive vesicoureteral reflux and a large capacity, smooth, thin walled bladder due to the continual recycling of refluxed urine. Recurrent urinary infections are commonly associated with this condition.

Index terms

  • Megacystis-megaureter

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LB31.0 – Congenital hydronephrosis
  • LB31.1 – Congenital primary megaureter
  • LB31.2 – Fetal lower urinary tract obstruction
  • LB31.3 – Exstrophy of urinary bladder
  • LB31.4 – Congenital diverticulum of urinary bladder
  • LB31.5 – Duplication of urethra
  • LB31.6 – Congenital megalourethra
  • LB31.8 – Atresia or stenosis of ureter
  • LB31.9 – Agenesis of ureter
  • LB31.A – Duplication of ureter
  • LB31.B – Malposition of ureter
  • LB31.C – Congenital absence of bladder or urethra
  • LB31.D – Congenital vesico-uretero-renal reflux
  • LB31.Y – Other specified structural developmental anomalies of urinary tract
  • LB31.Z – Structural developmental anomalies of urinary tract, unspecified

Foundation entity

Megacystis-megaureter – http://id.who.int/icd/entity/1872503107

Allowed postcoordination axes

Part of: LB31: Structural developmental anomalies of urinary tract › 20: Developmental anomalies