It sounds like you are trying to send secondary claims on paper. You need to add the "payment" versions of the CMS-1500 report templates that come with Medisoft. To do that go to Tools -> Add/Copy User Reports -> Add button. Select the CMS-1500 report template that you need. There are a bunch of HCFA-1500 report templates there. These are old legacy report templates that should not be used.
Now, there is a catch if you are on Medisoft v16 or newer. These reports have not worked since version 16 so there are additional steps to take to make this work. What you have to do is open the "payment" report template and the report template you have been using Design Custom Reports and Bills and add what the payment report has in box 29 to the report template you are using.
If you switch over to send electronic claims with Revenue Management, then all the payment information is automatically send on the electronic claim.
Walker Tek Solutions, LLC