I have Medicare and a Medicare supplemental policy from Medica. When my endo decided, through the GAD-65 test, that I was or had become an LADA diabetic, there was no problem having a pump approved. Medicare and the supplemental policies usually don't cover pumps for type 2 diabetics.
My pump is covered under Durable Medical Equipment. Thus, supplies and materials to make the pump work, such as insulin, infusion sets and reservoirs are also covered under the Durable Medical Equipment clauses of the insurance policy.
Pumping has made such a difference in control, in ease of management, and lifestyle. If you can get your insurance companies to approve a pump, by all means, do so! Your companies may have limits on what you can get, but what ever they allow, get it!