Avoiding/Correcting This Error
Collect all insurance information from the beneficiary when admitted to your HHA. Talk to the beneficiary about insurance changes and check CWF before billing Medicare. Many times a claim will overlap an MAO period because it was open at the time of billing, but was subsequently closed by the time the provider researches the reason for rejection. The best way to avoid this reason code is to verify the beneficiary has traditional Medicare right before submitting the claim.