Any hypertrophic cardiomyopathy in which the cause of the disease is a mutation in the TNNI3 gene. The disease is hypertrophic cardiomyopathy 7 (Monarch Disease Ontology identifier MONDO_0013369). Also known as: CMH7, TNNI3 hypertrophic cardiomyopathy, cardiomyopathy, familial hypertrophic 7, cardiomyopathy, familial hypertrophic, type 7, cardiomyopathy, hypertrophic, 7, hypertrophic cardiomyopathy caused by mutation in TNNI3, hypertrophic cardiomyopathy type 7.