I recently had two different cases where I believe a 22 modifier should be used, but I'm not sure what is normal for ablations. In two different cases multiple applications of RF energy were applied in order to obtain junctional rhythm - more than 35 applications in each case. I queried the provider to find out what was "normal" and he said 1-2. The documentation has never before stated how many ablations were done, so before I submit the charges I was wondering if anyone else has added the 22 modifier to an SVT ablation and if you think this qualifies. Thanks in advance for the assistance.