We charge the "1st Hour IV Therapy" 90780, then if appropriate the next hour(s) with "80781" each additional hour. Make sure the nurse documents start/stop times on chart.
Right now medicare will only pay for the 1st hour per visit (up to something like 6 return visits a day) but is looking into the additional hours, so be sure to charge for them.
If any other meds are pushed during the therapy you can add the IVP "90784" along with the other...it has to be a seperate drug other than the therapy.
We also have a level 0 we charge with zero amount for our stats. And then of course the drug charges. Hope that helps.