There are various kinds of visitors insurance for parents visiting USA. Comprehensive visitor insurance plans provide up to the plan maximum selected, whereas scheduled or fixed benefit visitor medical insurance limit till the amounts set for each medical condition. It makes sense to always buy the required coverage protection with pre-existing condition feature if previous medical history of such in a look back period of typically three years prior to start of coverage. Nowadays, medical repatriation, evacuation, in-patient emergency hospitalization, trip cancellation, baggage loss, and many more are packaged into same policy. It is imperative that you study about all the types of coverage to ensure selection of the apt plan for relatives or parents visiting America.