424.0 Mitral valve disorders
Mitral (valve):
incompetence NOS of specified cause, except rheumatic
insufficiency NOS of specified cause, except rheumatic
regurgitation NOS of specified cause, except rheumatic
Excludes:
mitral (valve):
disease (394.9)
failure (394.9)
stenosis (394.0)
the listed conditions:
specified as rheumatic (394.1)
unspecified as to cause but with mention of:
diseases of aortic valve (396.0-396.9)
mitral stenosis or obstruction (394.2)