Sinus node dysfunction

Definition

Non-specific term that refers to abnormalities in sinus node impulse formation and propagation and includes sinus bradycardia, sinus pause/arrest, chronotropic incompetence, and sinoatrial exit block.

4 subordinate codes

• BC80.20Sick sinus syndrome
• BC80.21Sinoatrial block
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Supraventricular bradyarrhythmia

• BC80.0Sinus pause
• BC80.1Sinus bradycardia
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified