To expand on the previous response.
The 90 day global for PM/ICD insertion is for the surgical portion of the procedure and is not applicable to the functioning of the devise itself. If the patient experiences any heart rhytym symptoms within the 90 day global period, the ensuing E/M services would fall under post-operative care.
However, cardiac symptoms such as chest pain, syncope, angina, shortness of breath, etc. may not have an arrythmia etiology and the associated E/M services would be separately reportable. Same for CAD, MI or other cardiomyopathies.
If your in doubt, ask the physician.
Terry Davis
CPC