label: Supraventricular Premature Complex With Unknown Origin by ECG Finding
label_lc: supraventricular premature complex with unknown origin by ecg finding
description: "An electrocardiographic finding of an ectopic impulse originating from the atria or atrioventricular junction for which the site of origin cannot be determined from the surface electrocardiographic recording; there may be one or more occurrences during an electrocardiographic recording."