Monarch Disease Ontology term MONDO_0007268 (hypertrophic cardiomyopathy 4) is an autosomal dominant condition caused by mutation(s) in the MYBPC3 gene, encoding MYBPC3 protein. It is characterized by severe neonatal hypertrophic cardiomyopathy. Also known as: CMH4, MYBPC3 hypertrophic cardiomyopathy, cardiomyopathy, familial hypertrophic, 4, cardiomyopathy, familial hypertrophic, type 4, cardiomyopathy, hypertrophic, 4, familial hypertrophic cardiomyopathy type 4, hypertrophic cardiomyopathy caused by mutation in MYBPC3, hypertrophic cardiomyopathy type 4.