How do I bill Medicare secondary using eClinicalworks?

I cant seem to figure out how to bill Medicare secondary thru eClinicalworks. I have over 100 claims that can't get past our clearing house. I have tried over and over and still can't seem to get my claims past the clearinghouse.

Response:

Thanks for your question.

I'll post and invite anyone with experience billing Medicare secondary with eClinicalworks to see if they can answer.