When you buy travel insurance, you will be asked about your health, and it is essential to answer fully. Failing to declare a pre-existing medical condition is one of the most common reasons travel claims are refused. This guide explains declaring pre-existing conditions for travel insurance, why it matters, and what to do if cover is hard to find.
What a pre-existing condition is
A pre-existing medical condition, for travel insurance, is generally a health problem you already have or have had, particularly one you have received treatment, medication or advice for, or are awaiting investigation or results for. This can include ongoing conditions, recent illnesses, and conditions under investigation. The definition is broad, so it is best to assume a condition needs declaring and to check the insurer's questions carefully rather than guessing what counts.
Why you must declare it
You must declare pre-existing conditions because insurers use this information to assess the risk and price your cover. If you do not declare a condition and then make a claim related to it, or even sometimes unrelated, the insurer can refuse the claim and may cancel the policy. Since a medical claim abroad is exactly where you most need cover, an undeclared condition can leave you facing enormous bills, which is why honesty is vital.
What counts and what to declare
Insurers typically ask about conditions you have had within a certain period, ongoing conditions, medication you take, and whether you are awaiting tests, results or treatment. You should declare anything they ask about, even if it feels minor or unrelated to travel, and even if you feel perfectly well. If in doubt, declare it. The screening questions are designed to capture what matters, so answering them fully and accurately is the safest approach.
What happens after you declare
Once you declare a condition, the insurer decides how to handle it. They may cover it at the standard price, charge a higher premium to reflect the risk, exclude that condition from cover, or in some cases decline to cover you. Being declared and covered, even at a higher price, is far better than being uninsured, because it means a claim related to the condition would actually be paid if the worst happened abroad.
If cover is expensive or refused
If you are quoted very high prices or refused cover because of a medical condition, you have options. Specialist travel insurers cater for people with medical conditions and can often provide cover that mainstream insurers will not. There is also an official signposting service: firms that cannot help must point you towards a directory of specialist providers, so you can find cover suited to your condition rather than giving up or travelling uninsured.
The medical screening process
Buying cover with a condition usually involves a medical screening, where you answer detailed questions about your health, often online. Answer these carefully and honestly, having details of your conditions and medication to hand. The screening determines your cover and price, and it forms part of your contract, so accuracy matters. Taking a little time over it, rather than rushing, helps ensure the cover you buy genuinely protects you.
Don't travel uninsured for a condition
It can be tempting, if cover is pricey, to buy a policy that excludes your condition, or to go without. But travelling with a condition excluded means any claim relating to it, potentially the most likely and most expensive kind, would not be covered. Given how high medical costs abroad can be, it is usually well worth paying more, or using a specialist insurer, to have your condition properly covered.
Conditions of travelling companions
Remember that cancellation cover can be affected by the health of people you are not travelling with, such as a close relative whose illness might force you to cancel. Some policies let you declare the conditions of such relatives so that cancellation for their illness is covered. If your trip might be affected by a family member's health, check whether and how their conditions can be declared, as this is easily overlooked.
Why claims get refused
The most common reason a medical travel claim is refused is that the traveller did not declare a relevant pre-existing condition. If a claim relates to an undeclared condition, or the non-disclosure is material, the insurer can decline it and may treat the whole policy as invalid. Given that a serious medical claim abroad is exactly where you need cover most, this makes full and honest declaration the single most important thing you can do.
Declare changes before you travel
Your duty to disclose does not end when you buy the policy. If your health changes between buying cover and travelling, for example a new diagnosis, a change in medication, or being referred for tests, you should tell your insurer, as this can affect your cover. New developments you fail to report could undermine a later claim. Keeping your insurer informed of significant changes ensures the cover remains valid right up to and during your trip.
Update your insurer if your health changes
On an annual policy especially, your health may change during the year, so it is worth updating your insurer about any new conditions before your next trip. The cover you arranged months ago was based on your health at the time, and a new condition might need declaring. A quick update keeps the policy accurate and avoids a nasty surprise if you needed to claim for something that arose after you first took out the cover.
Common conditions travellers declare
Insurers routinely deal with a wide range of declared conditions, from heart conditions, diabetes and high blood pressure to respiratory conditions, past cancer and many others. Declaring them does not necessarily make cover unaffordable; often it simply means a higher premium or, through a specialist insurer, properly tailored cover. The key is that declaring puts you in a position to be genuinely covered, rather than holding an apparently cheaper policy that would not pay out.
The simple rule is to treat the medical questions as the most important part of buying cover. Answer them fully, keep your insurer informed of any changes to your health, and use a specialist insurer if your condition makes mainstream cover hard to find. Do that, and your policy will be there for you when you most need it, rather than failing at the very moment it matters.
In short
You must declare pre-existing medical conditions when buying travel insurance, including ongoing conditions, recent treatment, medication and anything under investigation, since non-disclosure is a top reason claims are refused. After declaring, you may be covered at a higher price, have the condition excluded, or be declined. If cover is hard to find, use specialist insurers and the official signposting service, and never travel with a condition simply left uncovered.
Where to get help and next steps
Read about mental health conditions and your rights, see cancellation cover, and start with travel insurance explained. This is general information, not financial or medical advice.