Accelerated Idioventricular Rhythm (AIVR)
(2Q 2025 Coding Clinic)
AIVR is a hemodynamically stable rhythm and can occur after a myocardial infarction during the reperfusion phase or after cardiac ablation.
Idioventricular rhythm is similar to ventricular tachycardia, except the rate is less than 60 bpm and is alternatively called a ‘slow ventricular tachycardia.’ When the rate is between 50 to 110 bpm, it is referred to as accelerated idioventricular rhythm (AIVR).
Assign code I49.8, Other specified cardiac arrhythmias, for AIVR.
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