09/14/2026
Ever wondered why Medicare covered your MRI but denied your CT scan? It usually has less to do with the test itself and more to do with medical necessity, diagnosis codes, and how the claim was submitted. Here's what you should know before assuming you're stuck with the bill.
Understanding why Medicare may pay for one test but deny another.Few things are more frustrating than finding out one medical test was covered by Medicare while another wasn't.Maybe your doctor ordered both. Maybe they were done just weeks apart. Maybe they were even looking at the same part of your...