Ask Dr. Z

I'm trying to determine if documentation supports reporting 93620 or 93620-52 and +93621. There is no documentation for catheter placement at the high rt atrium but there is documentation for his recording and rt ventricle pacing/recording and catheter placement at these two sites. The cardiologist also documents catheter placement at the coronary sinus but there is no documentation of pacing/recording at this site. When I questioned him about the documentation for pacing/recording at the coronary sinus he responded to me, "the atrial stimulation site was the coronary sinus. I did not have a separate catheter to stimulate the atrium. All of the testing requiring atrial stimulation was done through the coronary sinus. This is always the case for my SVT ablation procedures. I will state it explicitly going forward". My question to you is can the rt atrium be stimulated at the coronary sinus or is he referring to left atrium only?