Any hypertrophic cardiomyopathy in which the cause of the disease is a mutation in the MYH6 gene. The disease is Monarch Disease Ontology id MONDO_0013197 (hypertrophic cardiomyopathy 14). Also known as: CMH14, MYH6 hypertrophic cardiomyopathy, cardiomyopathy familial hypertrophic 14, cardiomyopathy, familial hypertrophic, type 14, cardiomyopathy, hypertrophic, 14, hypertrophic cardiomyopathy caused by mutation in MYH6, hypertrophic cardiomyopathy type 14.