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 425.1
Hypertrophic obstructive cardiomyopathy 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 Therefore, this code may be out of date.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 425.1 can be accessed here. - 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).
- 425.1 is a specific code that can be used to specify a diagnosis
- 425.1 contains 8 index entries
- View the ICD-9-CM Volume 1 425.* hierarchy
425.1 also known as:- Hypertrophic subaortic stenosis (idiopathic)
Index entries containing 425.1:- Cardiomyopathy (congestive) (constrictive) (familial) (infiltrative) (obstructive) (restrictive) (sporadic) 425.4
- hypertrophic
- obstructive
 425.1
Hypertrophy, hypertrophic- subaortic stenosis (idiopathic) 425.1
Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic) 425.4- hypertrophic obstructive 425.1
Stenosis (cicatricial) - see also Stricture- hypertrophic subaortic (idiopathic) 425.1
- myocardium, myocardial (see also Degeneration, myocardial) 429.1
- hypertrophic subaortic (idiopathic) 425.1
- subaortic 746.81
- hypertrophic (idiopathic) 425.1
Stricture (see also Stenosis) 799.89- myocardium, myocardial (see also Degeneration, myocardial 429.1
- hypertrophic subaortic (idiopathic) 425.1
- subaortic 746.81
- hypertrophic (acquired) (idiopathic) 425.1
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