ICD-11

These are myocardial disorders in which the heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality.

Restrictive cardiomyopathy is the presence of impaired ventricular diastolic function related to reduced rate and/or extent of relaxation and/or compliance in the absence of another predominant phenotype of dilated or hypertrophic cardiomyopathy.