October 9, 2025
The ICD-10 code for cardiac arrhythmia varies depending on the type and cause of the irregular heartbeat. The general code is I49.9 β Cardiac arrhythmia and unspecified.
But more specific coding ensures accuracy, compliance, and proper reimbursement. Cardiac arrhythmias include conditions such as atrial fibrillation, tachycardia, premature ventricular contractions (PVCs), and sinus bradycardia.
ICD-10-CM Diagnosis Code R00.2 is a specific code used in the International Classification of Diseases (ICD) system to classify and diagnose palpitations and cardiac arrhythmias.
This code falls under the category of abnormalities of heart rhythm and is crucial for accurately identifying and treating heart rhythm irregularities.
Here are the most frequently used arrhythmia-related ICD-10 codes:
Accurate use of the ICD-10 code for arrhythmia helps healthcare providers:
Since arrhythmias range from benign palpitations to life-threatening tachycardia, precision in coding supports both billing integrity and patient care quality.
Our goal is to streamline your healthcare revenue cycle management, give you the financial freedom your practice deserves, and take control with a partner specializing in provider RCM optimization and services excellence.Β
Cardiac arrhythmias require precise documentation and coding to avoid billing errors and claim denials. While I49.9 covers unspecified arrhythmias, providers should use the most specific ICD-10 code whenever possible for accuracy and compliance.
Cures Medical Billing Services, our expert coders specialize in accurate ICD-10 coding for cardiac arrhythmias and other complex conditions. We help providers improve their clean claim ratio, reduce denials, and secure faster payments.
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The ICD-10 code is I49.9 β Cardiac arrhythmia, unspecified. It should only be used when the exact type of arrhythmia is not documented.
The correct code is R00.2 β Palpitations, which can be used when a patient reports a sensation of rapid or irregular heartbeats without a confirmed diagnosis.
Arrhythmia refers to the clinical diagnosis of an irregular heartbeat (coded under I47βI49), while palpitations (R00.2) are a symptom and should be coded separately if no confirmed arrhythmia is diagnosed.
Yes. R00.0, Tachycardia, unspecified is used when the heart rate is abnormally fast but without a specific diagnosis. Specific tachycardias like I47.0 (SVT) or I47.2 (Ventricular tachycardia) have their own codes.
Use Z86.79, Personal history of other circulatory diseases when documenting past arrhythmia not currently active.
Specific coding improves claim acceptance, reimbursement accuracy, and compliance with payer requirements, reducing denials and speeding up payments.
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