If you have a pre-existing medical condition, standard travel insurance may not cover you — and the consequence of discovering that in a foreign hospital is enormous. Specialist cover costs more, but it’s essential. This guide explains what counts as pre-existing, what you’ll pay, how to get covered, and the mistakes that void policies.
What Counts as Pre-Existing
| Condition Type | Examples |
|---|---|
| Long-term | Asthma, diabetes, high blood pressure |
| Recent | Surgery in last 2 years, recent diagnosis |
| Ongoing | Arthritis, depression, heart conditions |
| Medication | Any regular prescription |
Insurers define a pre-existing condition as anything you’ve been diagnosed with, treated for, or take medication for — usually within a look-back window of the last 2-3 years, plus any condition that has caused symptoms in the last 12 months. This includes conditions you consider “under control.” A stable condition still has to be declared.
The Risk of Not Declaring
| If You Don’t Declare | Consequence |
|---|---|
| Claim related to condition | Denied |
| Emergency medical treatment | You pay 100% |
| Repatriation costs | Can be £20,000+ |
| Policy void | All claims denied |
A heart attack in the US can produce a six-figure hospital bill. Even in Europe, private hospital treatment for a serious condition commonly runs to tens of thousands of pounds. Repatriation by air ambulance to the UK routinely exceeds £20,000 — and some insurers void the whole contract on non-disclosure, meaning your unrelated claim (a stolen camera, a delayed flight) is refused too.
Realistic scenario. A traveller with type 2 diabetes doesn’t declare it. They fall ill in Florida, need hospital treatment and evacuation, and the bill comes to $75,000. The insurer refuses the claim because the diabetes wasn’t disclosed. A £40 saving on their premium becomes a $75,000 loss.
How Premiums Compare
| Trip | Standard Policy | With a Declared Condition |
|---|---|---|
| 2 weeks in Europe | £15-25 | £60-150 |
| 2 weeks in the US | £30-60 | £120-300 |
| Annual multi-trip (Europe) | £50-100 | £150-400 |
The gap reflects real risk — but it’s still small next to the exposure. The question isn’t “can I afford the specialist premium?” It’s “can I afford to be uninsured?”
What Affects the Premium
| Factor | Impact |
|---|---|
| Type of condition | Heart/stroke > asthma |
| Time since diagnosis | Longer = lower premium |
| Medication | Multiple meds = higher cost |
| Destination | USA = most expensive |
| Trip duration | Longer = more risk |
Insurers also look at whether your condition has been “stable” — commonly defined as no new symptoms, no change in medication, and no hospital admissions in the past 12 months. A recent change in medication usually increases the premium or triggers an exclusion.
How to Get Covered
| Step | Action |
|---|---|
| 1 | Check if your condition needs declaring |
| 2 | Use a medical screening tool (most comparison sites offer this) |
| 3 | Get quotes from specialist insurers |
| 4 | Declare ALL conditions accurately |
| 5 | Keep a copy of your medical declaration |
Medical screening is a questionnaire that decides whether you’re covered, excluded, or need an underwriter to review. Answer each question literally — “have you been prescribed medication in the last 2 years” means any medication, not just for major conditions. If a question is unclear, ask before guessing.
Specialist Providers
| Provider | Best For |
|---|---|
| Allclear | Most conditions |
| Staysure | Over-50s with conditions |
| Free Spirit | Complex conditions |
| Avanti | Cancer survivors |
| InsureandGo | Common conditions |
Two policy types matter here:
- Full medical underwriting — you answer questions and the insurer prices your specific conditions. Best for most people.
- Moratorium policies — conditions that haven’t needed treatment, medication, or caused symptoms in the past 24 months become covered after you’ve held the policy for 6 months. Useful for long-forgotten conditions, but read the definitions carefully.
Tips
| Tip | Why |
|---|---|
| Declare everything | Non-disclosure voids cover |
| Get annual cover if travelling often | Cheaper than multiple single-trip |
| Carry a medical letter | Proof for foreign hospitals |
| Check EHIC/GHIC | Free or reduced treatment in EU |
Even with a GHIC card, state care in the EU doesn’t cover private hospitals, repatriation, or everything you might need — and it only works in the EU. Travel insurance covers the gaps.
Common Mistakes
- Assuming “under control” means “doesn’t need declaring.”
- Letting a cheap quote hide an exclusion — check the policy wording, not just the price.
- Not updating the policy — a new diagnosis or prescription after you’ve bought cover must be reported before you travel.
- Skipping the medical letter — foreign hospitals need your medication list and history; a translated letter from your GP smooths everything.
Bottom Line
Travel insurance with medical conditions is available. Declare everything accurately, use specialist providers, and expect higher premiums. The cost of not declaring — potentially £20,000+ in medical bills — far exceeds the premium.
What to watch out for
The most dangerous assumption is that a stable or well-managed condition does not need declaring. Insurers disagree. A condition you have not thought about for years — controlled blood pressure, a resolved episode of depression, a childhood asthma diagnosis — still has to be disclosed if it falls within the look-back window. The insurer decides whether it affects your cover, not you.
Also watch for cheap policies that include a medical screening questionnaire but then exclude the declared condition in the fine print. You have gone through the effort of declaring it honestly, only to find the policy does not actually cover it. Always read the schedule of exclusions after the screening, not just the quote. A slightly more expensive policy that genuinely covers your condition is far better value than a cheap one with a hidden exclusion.
Keeping your cover current
Your health changes after you buy the policy too. A new diagnosis, a change in medication, or a hospital admission between buying cover and travelling must be reported to your insurer before you leave. Failing to update them gives the insurer grounds to deny a claim — even if the claim is unrelated to the new condition.
Before each trip, double-check that your medical declaration is still accurate and that the policy covers your destination. A policy that covers European travel may not extend to the US, and a policy that covered your condition at the time of purchase may have different terms if you have been diagnosed with something new since then. Five minutes of checking before each trip is far cheaper than a six-figure medical bill abroad.