Right bundle branch block

This code signifies a delay or blockage in the electrical impulses traveling through the right bundle branch of the heart's conduction system. This disruption prevents the right ventricle from depolarizing normally, often resulting in a characteristic pattern on an electrocardiogram (ECG). It is a type of intraventricular conduction defect.

Apply this code when documentation explicitly states "right bundle branch block" or "RBBB" based on ECG findings. This is commonly identified during routine physical exams, cardiac workups, or investigations into symptoms like palpitations or syncope. The diagnosis must be clearly established by a physician.

• Do not use this code for incomplete right bundle branch block; a separate code exists for that condition.
• Always ensure the physician's documentation confirms the diagnosis based on ECG interpretation.
• Consider sequencing this code as a secondary diagnosis if the RBBB is an incidental finding and not the primary reason for the encounter.