With the new rules this year for 97597 and 97598, I am having trouble getting multiple 97598's paid. Medicare says they are duplicates. I tried using units and Medicare didn't like that. Sooooo, I did a line for every 97598 and added mod 59. When our A/R person called Medicare, she asked if 51 mod would work. The answer was no. Since I am billing for the Wound Healing Center at our hospital, I have this alot. Any ideas?