Re-entry ventricular arrhythmia

This code describes a type of irregular heart rhythm originating in the ventricles, specifically caused by a re-entry mechanism. This occurs when an electrical impulse abnormally re-excites an area of myocardial tissue after its refractory period, leading to a sustained, rapid ventricular rhythm. It is a form of ventricular tachycardia.

Use this code when documentation explicitly states a diagnosis of re-entry ventricular arrhythmia or ventricular tachycardia confirmed to be due to a re-entry circuit. This diagnosis is typically established through electrophysiology studies (EPS) or detailed ECG analysis. Supporting documentation should include findings from these diagnostic tests.

• Differentiate from other types of ventricular arrhythmias (e.g., I47.2 for other specified ventricular tachycardias) if the re-entry mechanism is not explicitly documented.
• Ensure the documentation clearly identifies the arrhythmia as ventricular and due to re-entry, not supraventricular or unspecified.
• Consider sequencing with underlying cardiac conditions (e.g., ischemic heart disease, cardiomyopathy) if they are contributing factors to the arrhythmia.