424: Other diseases of endocardium
Excludes:
bacterial endocarditis (421.0-421.9)
rheumatic endocarditis (391.1, 394.0-397.9)
syphilitic endocarditis (093.20-093.24)
424.3 Pulmonary valve disorders
Pulmonic:
incompetence NOS
insufficiency NOS
regurgitation NOS
stenosis NOS
Excludes:
that specified as rheumatic (397.1)
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