2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Cardiomyopathy 425.* > 2006 ICD-9-CM Diagnosis 425.3 Endocardial fibroelastosis View the most recent version of ICD-9-CM 425.3 A condition characterized by the thickening of ENDOCARDIUM due to proliferation of fibrous and elastic tissue, usually in the left ventricle leading to impaired cardiac function (CARDIOMYOPATHY, RESTRICTIVE). It is most commonly seen in young children and rarely in adults. It is often associated with congenital heart anomalies (HEART DEFECTS,CONGENITAL); INFECTION; or gene mutation. Defects in the tafazzin protein, encoded by TAZ gene, result in a form of autosomal dominant familial endocardial fibroelastosis. 425.3 is a specific code that can be used to specify a diagnosis 425.3 contains 9 index entries View the ICD-9-CM Volume 1 425.* hierarchy Alternate Terminology Elastomyofibrosis  Index entries containing 425.3: Anomaly, anomalous (congenital) (unspecified type) 759.9 heart 746.9 fibroelastosis cordis 425.3 Cardiomyopathy (congestive) (constrictive) (familial) (infiltrative) (obstructive) (restrictive) (sporadic) 425.4 congenital 425.3 newborn 425.4 congenital 425.3 Elastomyofibrosis 425.3 Endocarditis (chronic) (indeterminate) (interstitial) (marantis) (nonbacterial thrombotic) (residual) (sclerotic) (sclerous) (senile) (valvular) 424.90 congenital 425.3 fetal 425.3 Fibroelastosis (cordis) (endocardial) (endomyocardial) 425.3 Newborn (infant) (liveborn) cardiomyopathy 425.4 congenital 425.3 Sclerosis, sclerotic subendocardial, congenital 425.3