 Q23 |
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Congenital malformations of aortic and mitral valves  |
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 Q23.0 |
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Congenital stenosis of aortic valve |
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| Congenital aortic atresia | | Congenital aortic stenosis NOS |
| Excludes1 |
congenital stenosis of aortic valve in hypoplastic left heart syndrome (Q23.4)
congenital subaortic stenosis (Q24.4)
supravalvular aortic stenosis (congenital) (Q25.3)
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| Q23.1 |
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Congenital insufficiency of aortic valve |
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| Congenital aortic insufficiency |
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| Q23.2 |
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Congenital mitral stenosis |
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| Congenital mitral atresia |
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| Q23.3 |
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Congenital mitral insufficiency |
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| Q23.4 |
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Hypoplastic left heart syndrome |
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| Q23.8 |
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Other congenital malformations of aortic and mitral valves |
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| Q23.81 |
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Bicuspid aortic valve |
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| Congenital bicuspid aortic valve | | Unicuspid (congenital) aortic valve (at birth) |
| CodeAlso |
, if applicable, acquired aortic valve disorders, such as:
aortic (valve) insufficiency (nonrheumatic) (I35.1)
aortic (valve) stenosis (nonrheumatic) (I35.0)
aortic (valve) stenosis with insufficiency (nonrheumatic) (I35.2)
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| Q23.82 |
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Congenital mitral valve cleft leaflet |
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| Cleft mitral valve leaflet at birth |
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| Q23.88 |
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Other congenital malformations of aortic and mitral valves |
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| Q23.9 |
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Congenital malformation of aortic and mitral valves, unspecified |
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