I49: Other cardiac arrhythmias
I49.5: Sick sinus syndrome
The heart pumps blood through the body. Inside the heart are 4 chambers. There are 2 heart atria and 2 ventricles. Both heart atria and both ventricles are separated from each other by a partition. The pacemaker for our heartbeat is in the heart’s right atrium. The pacemaker normally emits regular, small electrical currents for the heart. The electrical currents trigger the heartbeat.
Your pacemaker is not working properly. As a result, your heart may beat too quickly, too slowly, or irregularly.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.