Ask Dr. Z

We are seeing physicians insert the RV component of a dual chamber leadless pacemaker system as a single chamber pacemaker instead of a single chamber leadless pacemaker. There is no plan to add the RA component in the future. There is nothing in CPT Assistant indicating whether or not these should be coded based on the type of device used (0797T) or the type of pacing it is intended to perform (33274). Should this be coded as a single chamber leadless pacemaker (33274), since there is no intention of adding an RA component later, or should they be coded based on the type of device inserted using 0797T?