A patient had a single-chamber atrial pacemaker and underwent pulse generator replacement. What code(s) should be reported?

In the context of CPT coding for pacemaker procedures, when reporting a replacement of a pulse generator for a single-chamber atrial pacemaker, the appropriate code is 33227. This specific code is defined for the replacement of an existing pulse generator for an atrial pacemaker system, indicating that the procedure is focused on the generator, rather than any leads or other components.

When coding for pacemaker-related procedures, it's crucial to recognize the distinctions among the various codes based on the type of device and the nature of the procedure. In this case, the replacement procedure is specifically aligned with the functionality of a single-chamber atrial pacemaker, which is why 33227 is the correct choice.

Alternatively, other codes such as 33226, 33225, and 33224 pertain to different scenarios involving pacemaker systems, such as replacement of certain lead configurations or different chamber types (e.g., dual-chamber pacemakers). Thus, selecting 33227 is appropriate for accurately reflecting the specific service performed.