I49.40
ICD-10-CMThis code signifies an abnormal electrical impulse originating in the atria or ventricles that occurs earlier than expected in the cardiac cycle, without further specification of its origin (atrial or ventricular). It represents a general finding of premature beats or ectopic activity on an electrocardiogram (ECG) or other cardiac monitoring.
Use this code when documentation indicates "premature beats," "ectopic beats," or "premature depolarization" without specifying if they are atrial (PACs) or ventricular (PVCs). This is appropriate when the physician has not definitively identified the specific chamber of origin for the premature depolarization.
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