I have been having trouble billing for the H1N1 vaccination. Does anyone know anything about where how to bill for the vaccination?
I've billed commercial insurances and state insurances with 90663-SL with ICD-9 V04.81 with an administration code 90470 and have been getting denials from insurances for the administration fee. Should I be billing with 90663-SL along with G9141-SL or G9142-SL?
Also, when a patient comes in for an offive visit not relating to the vaccination and then gets the H1N1 vaccination, would I have to use the modifier 25 with the offive visit cpt code? Please help!