Disaster Health Assistance offers insurance and medical assistance for travelers. It would cover you if you had to be taken off a mountain as a result of a skiing or hiking accident, or if you had to postpone for a lengthened period of time within a foreign hospital. Insurers would also provide coverage if you got critically sick or were injured and needed to be flown home. Some commercial airlines require exceptionally sick passengers to fly on a stretcher with a doctor. Usually this means that you might have to pay for 10 or more seats on a plane at a probable pot cost of over $10,000.
Before purchasing this kind of coverage, confirm with your particular health insurance carrier. Find out what sort of coverage you have when traveling overseas and if there are any confines. Additionally, request if the policy will compensate to fly you home or to a country with first-rate medical care.