Medicare no longer pays for CGS

I have Medicare and Tri-Care for Life health insurance, and they no longer fund the Continuous Glucose Monitoring device. I have learned how to handle the severe lows and after working with my endocrinologist, who changed my basals so I rarely get the lows. Nevertheless, it was useful to have when traveling. Has anyone else (oldsters!) been rejected?
Cheers.

Medicare never DID cover the CGM, because they consider it experimental. Secondary and supplemental insurances may vary. I'm under a year and a half away from Medicare, and terrified of losing my CGM, but haven't yet found out whether my ins. (which will be secondary) will cover it as they have been doing.