Any hypertrophic cardiomyopathy in which the cause of the disease is a mutation in the PRKAG2 gene. The disease is hypertrophic cardiomyopathy 6 (MONDO_0010946). Also known as: CMH6, PRKAG2 hypertrophic cardiomyopathy, cardiomyopathy, familial hypertrophic 6, cardiomyopathy, familial hypertrophic, type 6, cardiomyopathy, hypertrophic 6, hypertrophic cardiomyopathy caused by mutation in PRKAG2, hypertrophic cardiomyopathy type 6.