2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Cardiomyopathy 425.* >  2008 ICD-9-CM Diagnosis 425.4
Other primary cardiomyopathies On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date.
The 2009 version of ICD-9-CM 425.4 can be accessed here. - A form of CARDIAC MUSCLE disease in which the ventricular walls are excessively rigid, impeding ventricular filling. It is marked by reduced diastolic volume of either or both ventricles but normal or nearly normal systolic function. It may be idiopathic or associated with other diseases (ENDOMYOCARDIAL FIBROSIS or AMYLOIDOSIS) causing interstitial fibrosis.
- A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, contractile dysfunction of the left or both HEART VENTRICLES, and congestive heart failure (HEART FAILURE, CONGESTIVE) symptoms. Risk factors include ETHANOL and TOBACCO abuse, PREGNANCY; HYPERTENSION; INFECTION; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.
- A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).
- A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).
- 425.4 is a specific code that can be used to specify a diagnosis
- 425.4 contains 14 index entries
- View the ICD-9-CM Volume 1 425.* hierarchy
425.4 also known as:- Cardiomyopathy:
- NOS
- congestive
- constrictive
- familial
- hypertrophic
- idiopathic
- nonobstructive
- obstructive
- restrictive
- Cardiovascular collagenosis
Index entries containing 425.4:- Cardiomegaly (see also Hypertrophy, cardiac) 429.3
- idiopathic
 425.4
Cardiomyopathy (congestive) (constrictive) (familial) (infiltrative) (obstructive) (restrictive) (sporadic) 425.4Cardiopathy (see also Disease, heart) 429.9- idiopathic 425.4
Collagenosis (see also Collagen disease) 710.9- cardiovascular 425.4
Disease, diseased - see also Syndrome- myocardium, myocardial (see also Degeneration, myocardial) 429.1
- primary (idiopathic) 425.4
Hypertrophy, hypertrophic- myocardium (see also Hypertrophy, cardiac) 429.3
- idiopathic 425.4
Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic) 425.4Myocarditis (fibroid) (interstitial) (old) (progressive) (senile) (with arteriosclerosis) 429.0- constrictive 425.4
Myocardosis (see also Cardiomyopathy) 425.4
Newborn (infant) (liveborn)- cardiomyopathy 425.4
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