has characteristic has characteristic congenital left-sided heart lesions https://github.com/monarch-initiative/mondo/issues/4069 MEDGEN:868006 UMLS:C4022397 MONDO:0005584 GARD:0024207 EFO:0005938 Serious heritable structural anomalies of the left side of the heart, including hypoplastic left heart syndrome, aortic valve stenosis, coarctation of the aorta, mitral valve anomalies and bicuspid aortic valve, that are present from birth. congenital heart malformation congenital