Payer Paid Amount or CAS not allowed when COB submitted

Rejection: Payer Paid Amount (AMT*D) or any CAS segments are not allowed when the COB Total Non-Covered Amount (AMT*A8) is submitted.

What happened: The AMT*A8 cannot be sent when the AMT*D and CAS segments are sent.

‍Resolution: The AMT*A8 segment represents that the primary payer was bypassed, therefore was not adjudicated by a primary payer. Need to remove the AMT*A8 or the AMT*D and CAS segments and update the claim.