Slater,
I've done that as well in my current ehr. For something like Orthovisc/Synvisc the next two visits I do only the injection. After playing with AC, I think I would do a separate note with a -25 modifier and the injection as an addendum just to keep everything clean and easy. It would be nice to be able to do a procedure and have it placed with the notes but be labeled as what procedure was performed. I'm working on templates for every procedure and will probably be up and running by the new year. I'm still playing around with sending notes to the referring docs and would like to send the hpi and plan only with the letters I send.