ICD-10 Diagnosis Code R00

Abnormalities of heart beat

Diagnosis Code R00

ICD-10: R00
Short Description: Abnormalities of heart beat
Long Description: Abnormalities of heart beat
This is the 2017 version of the ICD-10-CM diagnosis code R00

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    • Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
      • Abnormalities of heart beat (R00)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Index of Diseases and Injuries
References found for the code R00 in the Index of Diseases and Injuries:

Information for Patients


Also called: Irregular heartbeat

An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.

Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.

Symptoms of arrhythmias include

  • Fast or slow heart beat
  • Skipping beats
  • Lightheadedness or dizziness
  • Chest pain
  • Shortness of breath
  • Sweating

Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery.

NIH: National Heart, Lung, and Blood Institute

  • Arrhythmias
  • Atrial fibrillation or flutter
  • Cardiac ablation procedures
  • Ectopic heartbeat
  • Electrocardiogram
  • Exercise stress test
  • Heart palpitations
  • Holter monitor (24h)
  • Paroxysmal supraventricular tachycardia (PSVT)
  • Ventricular tachycardia
  • Wolff-Parkinson-White syndrome

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