Browse Disease Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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7  Diseases of the Circulatory System
420-429   Other Forms of Heart Disease
427   Cardiac dysrhythmias
427.81   Sinoatrial node dysfunction
   Sinus bradycardia:
   persistent
   severe
   Syndrome:
   sick sinus
   tachycardia-bradycardia
Excludes:    sinus bradycardia NOS (427.89)