urachal diverticulum ICD10:Q64.4 MONDO:0018553 NCIT:C123254 Orphanet:431347 SCTID:253899000 UMLS:CN237554 Urachal diverticulum is the rarest type of congenital urachal anomaly resulting from the failure of the distal urachus to close at its point of connectivity to the bladder that is usually asymptomatic but can be associated with recurrent urinary tract infections and other complications. Vesicourachal diverticulum congenital urachal anomaly