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Electrocardiogram

Definition: A recording of the electrical activity of the heart. Within each heartbeat, electrical waves travel through the heart. For a normally functioning heart, the P wave indicates atrial contraction, then after a short pause, the QRS complex indicates ventricular contraction and then a T wave marks the relaxation of the ventricles. EKGs are recorded on a chart paper, displayed on a monitor or digitally captured.

Pronunciation: e-lek″tro-kahr´de-o-gram″

Body System: Cardiovascular

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ICD10 Codes Containing Term: electrocardiogram

CodeDescription
R94.31 Abnormal electrocardiogram [ECG] [EKG]
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