2006 ICD-9-CM Volume 1 Diagnosis Codes > Diseases Of The Circulatory System 390-459 > Chronic Rheumatic Heart Disease 393-398 > 393 Chronic rheumatic pericarditis 394 Diseases of mitral valve 395 Diseases of aortic valve 396 Diseases of mitral and aortic valves 397 Diseases of other endocardial structures 398 Other rheumatic heart disease