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2009 ICD-9-CM
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| Aortic Stenosis, Subvalvular Aortic Subvalvular Stenosis | Subvalvular Aortic Stenosis | Aortic Stenoses, Subvalvular | Aortic Subvalvular Stenoses | Stenoses, Aortic Subvalvular | Stenoses, Subvalvular Aortic | Stenosis, Aortic Subvalvular | Stenosis, Subvalvular Aortic A narrowing of the aorta in the region below the aortic valve. |