fetal lower urinary tract obstruction posterior urethral valve https://github.com/monarch-initiative/mondo/issues/9097 https://www.malacards.org/card/posterior_urethral_valve ICD9:753.8 MEDGEN:451008 Posterior urethral valve (PUV) is the most common anomaly of fetal lower urinary tract obstruction (LUTO) and is characterized by an abnormal congenital obstructing membrane that is located within the posterior urethra associated with significant obstruction of the male bladder restricting normal bladder emptying. ICD10CM:Q64.2 Posterior Urethral Valves UMLS:C0238506 PUV MedDRA:10036369 GARD:0007439 Orphanet:93110 MONDO:0019640 NORD:242851 congenital posterior urethral valves SCTID:253900005 Posterior urethral valves NCIT:C99021