dilated cardiomyopathy familial cardiomyopathy familial dilated cardiomyopathy icd11.foundation:423719003 Orphanet:217607 MESH:C536231 UMLS:C0340427 idiopathic dilated cardiomyopathy OMIMPS:115200 dilated cardiomyopathy, familial DCM MEDGEN:90951 A a genetic form of heart disease that occurs when heart (cardiac) muscle becomes thin and weakened in at least one chamber of the heart, causing the open area of the chamber to become enlarged (dilated). As a result, the heart is unable to pump blood as efficiently as usual. To compensate, the heart attempts to increase the amount of blood being pumped through the heart, leading to further thinning and weakening of the cardiac muscle. Over time, this condition results in heart failure. MONDO:0016333 hereditary dilated cardiomyopathy hypokinetic dilated cardiomyopathy, familial GARD:0020525 obsolete_familial dilated cardiomyopathy