World Health Organization · 2026-01 · English
LB31 Structural developmental anomalies of urinary tract
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
LB31.0Congenital hydronephrosisLB31.1Congenital primary megaureterLB31.2Fetal lower urinary tract obstructionLB31.3Exstrophy of urinary bladderLB31.4Congenital diverticulum of urinary bladderLB31.5Duplication of urethraLB31.6Congenital megalourethraLB31.7Megacystis-megaureterLB31.8Atresia or stenosis of ureterLB31.9Agenesis of ureterLB31.ADuplication of ureterLB31.BMalposition of ureterLB31.CCongenital absence of bladder or urethraLB31.DCongenital vesico-uretero-renal refluxLB31.YOther specified structural developmental anomalies of urinary tractLB31.ZStructural developmental anomalies of urinary tract, unspecified© World Health Organization · CC BY-ND 3.0 IGO