424 Other diseases of endocardium 
424.0 Mitral valve disorders convert 424.0 to ICD-10-CM 424.1 Aortic valve disorders convert 424.1 to ICD-10-CM 424.2 Tricuspid valve disorders specified as nonrheumatic convert 424.2 to ICD-10-CM 424.3 Pulmonary valve disorders convert 424.3 to ICD-10-CM
424.9 Endocarditis valve unspecified 
424.90 Endocarditis valve unspecified cause convert 424.90 to ICD-10-CM 424.91 Endocarditis in diseases classified elsewhere convert 424.91 to ICD-10-CM 424.99 Other endocarditis valve unspecified convert 424.99 to ICD-10-CM