Hypertrophic cardiomyopathy caused by mutations in the genes encoding components of the sarcomere, in the absence of predisposing conditions. The disease is familial hypertrophic cardiomyopathy (MONDO_0024573). Also known as: cardiomyopathy, familial hypertrophic, familila or idiopathic hypertrophic obstructive cardiomyopathy, hereditary hypertrophic cardiomyopathy, hypertrophic familial cardiomyopathy.