424.1 Aortic valve disorders
Aortic (valve):
incompetence NOS of specified cause, except rheumatic
insufficiency NOS of specified cause, except rheumatic
regurgitation NOS of specified cause, except rheumatic
stenosis NOS of specified cause, except rheumatic
Excludes: hypertrophic subaortic stenosis (425.11)
that specified as rheumatic (395.0-395.9)
that of unspecified cause but with mention of diseases of mitral valve (396.0-396.9)
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