Additional Processing Instructions

150.2 - Additional Processing Instructions (Rev. 30, 09-05-03) For further information on how to implement this Medicare secondary payer provision, refer to §§3490.3-3490.16 of the Medicare Intermediary Manual. These sections include, among other things, information regarding the implementation of this provision retroactively, the processing of current claims, the determination of the 18-month period in which Medicare may be secondary, and the method of calculating the Medicare secondary payment.