Some Medigap policies also offer coverage for services that Original Medicare doesn't cover, like medical care when you travel outside the U.S. If you have Original Medicare and you buy a Medigap policy, Medicare will pay its share of the Medicare-approved amount for covered health care costs. Then your Medigap policy pays its share.
A Medigap policy is different from a Medicare and other senior health products Plan. Those plans are ways to get Medicare benefits, while a Medigap policy only supplements your Original Medicare benefits.
Standard Medigap Plans C, D, F, G, M, and N provide foreign travel emergency health care coverage when you travel outside the U.S.
Plans E, H, I, and J are no longer for sale, but if you bought one before June 1, 2010 you may keep it. All of these plans also provide foreign travel emergency health care coverage when you travel outside the U.S.
Source(3): Medicare FAQ 2014 [DIRECT LINK]
Source(4): Medicare FAQ 2014 [DIRECT LINK]
Source(5): Medicare FAQ 2014 [DIRECT LINK]
Source(6): Medicare FAQ 2014 [DIRECT LINK]
Source(7): Medicare FAQ 2014 [DIRECT LINK]