Intrinsic cardiomyopathies are generally classified into four types , but additional types are also recognized : Dilated cardiomyopathy -LRB- DCM -RRB- , the most common form , and one of the leading indications for heart transplantation .

There are four main types of cardiomyopathy : Dilated cardiomyopathy -LRB- DCM -RRB- is the most common form .
