Rejection: Payer no longer accepts paper claims from clearinghouses. Please print and mail claim directly to payer. (RC123)

What happened: This claim was sent by paper and payer can only accept paper claims from the provider directly.

Resolution: Either claims need to be sent by paper directly to the payer or need to verify if pre enrollment is needed to send electronically. If so, fill out the pre enrollment form and resend the claim when pre enrollment is completed.