In regards to billing inpatient/residential for substance abuse (or really any residential), can an interim bill be billed daily? We've always billed with a date span using a treatment plan HCPC and a room and board rev code. Then the appropriate type of bill code. For us we use 86(1,2,3 or 4). Our current system we bill out the date span for the month, but we are trying to bill out of our EHR system and previously it kicked out a daily bill on a UB. That seemed to cause a lot of problems with trying to get paid. Our EHR system says their other clients bill daily. Not sure if it has something to do with the state we are in or not. We are in Minnesota. Any advice would be helpful. Thanks