Unfortunately, this simple question has a fairly complicated answer. The answer is: it depends. Firstly, it depends on whether you are a US resident traveling outside the US or a visitor to the US. US residents can purchase trip cancellation insurance that can cover pre-existing conditions and even plans that are travel medical only without cancellation often are more generous in their coverage of pre-existing conditions. These plans may have specific requirements in order to waive the usual exclusion of coverage for pre-existing conditions (like purchase them within a certain number of days of your initial trip deposit or that you have a primary domestic insurance plan in the US), so you should check these details carefully if this is important to you.

Non-US residents or US residents traveling into the US have much more limited options to insure their pre-existing conditions are covered. Some plans offer coverage for "acute onset" of pre-existing conditions. However, this is misleading, since a careful look at their definition excludes chronic or congenital disorders from such coverage. Chronic illnesses are those that worsen over time and congenital disorders are issues one is born with. They exclude emergencies due to chronic illness because they will say that is not "acute" it is simply a worsening of your condition. There are only two policies we know of that offer coverage for pre-existing medical conditions. They are INF Premier and INF Elite plans.

Firstly, they define pre-existing conditions in the following way: A pre-existing condition is a condition for which the insured received treatment or took medication for in the previous 12 months before the start of the policy. If the medication dosage has not changed and is taken as a maintenance medication, this would NOT count as a flare up or treatment of the condition. In that case, very stable conditions that have no flare ups in the past 12 months are not even excluded as pre-existing conditions. Conditions that have had flare ups or doctor recommended treatment or change in medication, are still covered by the plans but with a higher deductible and a lower maximum.

INF Elite (also INF Elite 90) are comprehensive plans offering fairly complete coverage. INF Premier is a fixed plan. Find details on these plans here.

The above plans must be purchased for at least 90 days and can be quite pricey for seniors, but they offer the only real coverage for chronic conditions.

The other option, of course, is to take a plans with little ($1K) or no coverage for pre-existing conditions and take a risk that that condition will not flare up during the trip.

INF plans boast they offer "full" coverage for pre-existing conditions. This can be a little misleading. Firstly, any regular treatment or medication that is required by the condition is never covered. The main advantage to the INF Elite and INF Premier is that they cover sudden illness/injury regardless of whether it is pre-existing or not. The only difference is that a pre-existing condition will be covered with a higher deductible at at a lower maximum than any other "new" illness or injury. However, coverage is not limited to an emergency or life-threatening situation.

The "Acute Onset of a Pre-Existing Condition" is a sudden and unexpected outbreak or recurrence of a pre-existing medical condition which occurs without any advance warning either in the form of physician recommendations or symptoms and requires immediate care (within 24 hours of first symptoms). A Pre-Existing Condition that is a chronic or congenital condition or that gradually becomes worse over time will not be considered acute onset.

The acute onset coverage benefit does not include coverage for known, scheduled, required, or expected medical care, drugs or treatment existent or necessary prior to the effective date of coverage. An example of this might be someone who has a food allergy or bee allergy and is unknowingly exposed to their allergen and requires immediate medical attention.

Acute onset of a pre-existing condition can be defined as the sudden & unexpected occurrence of a pre-existing condition which requires in-patient, emergency hospitalization within 24 hours of exhibiting first symptoms. The main difference between acute onset & full pre-existing is that with Full Pre-Existing coverage, is that one is covered for all pre-existing conditions and associated medical costs and this includes follow up visits, hospitalizations and doctor’s visits, etc. The acute onset coverage will only cover the in-patient hospitalization expense.

Full Pre-existing means we will cover any issue regarding a pre-existing condition, however, if one is traveling to the United States solely for medical treatment, that will not be covered. INF plans do not cover any medical tourism related claims. Pre-existing conditions under the INF plans are covered with a higher deductible and a lower maximum than other illnesses or injuries. These are chosen or specified when you purchase you plan.

Yes, the INF policies will cover any pre-existing issue that the traveler may have during their stay in the United States. This includes blood pressure, diabetes, kidney related issues and arthritis, all of which are covered by the INF Premier, INF Premier Plus, INF Elite, INF Elite Plus and INF Elite 90, Hop Travel Assist, Hop Mindoro Assist, Hop WorldHopper, Hop Trip Assist Plus Plans.

The insurance company takes on an enormous risk by insuring individuals and including coverage for pre-existing conditions without any prior medical examination. Under the INF plans, you are paying more, but you are getting the full value for the money you pay given the very high cost of US healthcare. With the INF Premier, INF Premier Plus, INF Elite, INF Elite Plus and INF Elite 90, Hop Travel Assist, Hop Mindoro Assist, Hop WorldHopper, Hop Trip Assist Plus Plans, even though it is expensive, you can have the comfort of knowing that you are covered for any emergency or contingency. This peace of mind given the expensive US healthcare expense is what makes INF plans worth it despite being expensive.

The list of covered services under Visitors insurance full pre-existing conditions coverage can be found on the American Visitor Insurance website of the INF Premier, INF Premier Plus, INF Elite, INF Elite Plus and INF Elite 90, Hop Travel Assist, Hop Mindoro Assist, Hop WorldHopper, Hop Trip Assist Plus Plan pages. INF plans are open to green card holders