A code indicating the billing frequency. 0 = Nonpayment / Zero Claim 1 = Admit through Discharge Claim 2 = Interim – First Claim 3 = Interim – Continuing Claim (Not Valid for Medicare Inpatient Hospital PPS Claims) 4 = interim – Last Claim (Not Valid for Medicare Inpatient Hospital PPS Claims) 5 = Late Charges Only Claim 6 = Reserved 7 = Replacement of Prior Claim 8 = Void / Cancel of a Prior Claim 9 = Final Claim for a Home Health PPS Episode