What should be done if no Medigap benefits are assigned in Block 9?

When Block 9 of the CMS-1500 form indicates that no Medigap benefits are assigned, it is appropriate to leave the block blank. This action signifies that there is no Medigap insurance involved in the claim, which accurately reflects the circumstances. Each block on the form serves a specific purpose, and leaving it blank indicates that there is no information to report for that particular section.

Writing 'N/A' or 'Not Required' could create confusion, as they suggest an unnecessary specification when the simplest response is to leave the field empty. Similarly, stating 'Zero' might imply that there are benefits, but they amount to nothing, which does not accurately represent the situation when Medigap is not applicable. Therefore, leaving the block blank is the most straightforward approach in this case.