Pre-existing conditions: the question every nomad gets wrong on the application

Introduction

There is a moment in a lot of denied insurance claims where someone reads back the original application question and realizes the answer should have been yes.

It usually doesn't happen during the small claims. The broken wrist, the food poisoning, the stitches: those get paid out without anyone pulling records. It happens on the big ones. The surgery. The cancer workup. The pregnancy complication. The mental health hospitalization. When the claim is large enough to warrant investigation, the carrier requests medical history from primary care providers, sometimes going back years, and what they find is the diagnosis from 2019 that wasn't on the application form.

What happens next is not one outcome but four, and under UK consumer insurance law the fork is whether your answer was careless or deliberate.

Careless, and the insurer would still have written the policy on different terms: the contract is read as if it had carried those terms all along. A new exclusion therefore bites backwards, and the claim in front of you goes unpaid. If the difference was only price, the payout is cut in proportion instead.

Careless, and the insurer would not have written it at all: the policy is unwound, every claim is refused, and the premiums come back to you.

Deliberate or reckless: the policy is unwound, every claim is refused, and the insurer keeps the premiums. That last part surprises people, and it is the plain text of the statute rather than a carrier's small print.

One thing the law does not give you is a clock. There is no deadline by which the insurer had to catch it.

It is also the most avoidable bad outcome in nomad insurance, because the whole thing is decided at the application stage, months or years before anyone gets ill. So let me walk through what's actually going on.

What "pre-existing" actually means

Most people read "pre-existing condition" and think "something I'm currently being treated for." That's not the definition any major IPMI carrier uses.

A typical IPMI policy defines a pre-existing condition as any condition, symptom, or sign for which you have, before the policy start date: received medical advice or treatment, been prescribed medication, had tests or investigations, or experienced symptoms, whether or not a formal diagnosis was made. Travel policies use language that's broader still, often excluding anything that existed in any form prior to coverage, regardless of whether you knew about it.

This catches things people don't think of as conditions. A back pain episode in 2021 where you saw a physio twice and never followed up. A round of antidepressants you took for six months in your late twenties. A weird liver enzyme reading on a blood test that your GP told you not to worry about. The dermatologist visit for a mole that turned out to be nothing. A panic attack you mentioned to a doctor once.

None of these feel like conditions. All of them are pre-existing under most carrier definitions. The question on the application ("have you ever been investigated for, treated for, or experienced symptoms of...") is broader than people read it as. They answer about what they currently have. The carrier asks about what they ever had.

Full medical underwriting vs moratorium underwriting

There are two main ways carriers handle pre-existing conditions, and they're very different beasts.

Full medical underwriting (FMU) is what most IPMI carriers do. You fill out a detailed health questionnaire (sometimes ten pages, sometimes more) declaring everything. The underwriter reviews it and comes back with one of four outcomes: standard acceptance, acceptance with a premium loading (you pay more because of declared conditions), acceptance with specific exclusions (the condition is named and not covered, but everything else is), or decline. Once you're accepted, you're accepted. The conditions you declared are dealt with by the policy terms. The conditions you didn't declare, if any, are uncovered and risky.

Moratorium underwriting is what a handful of carriers use. There's no upfront questionnaire. Instead the policy automatically excludes anything you had treatment, medication, advice or symptoms for in a window before the start date, diagnosis or no diagnosis. In one published moratorium guide that window is five years.

The part people get wrong is what comes next, because it is a second clock and not the same one. That wording pays nothing on those conditions for the first two years of the policy, and cover only opens up once you have also gone two consecutive years without a doctor, a prescription, over-the-counter medication or a special diet for the condition. Five years back and two years clear are different periods. Read your own wording for both numbers rather than assuming one implies the other. The appeal is the easy application. The risk is that the burden of proof shifts to you at claim time: you have to demonstrate the condition wasn't symptomatic in the moratorium window, and “I don't think I had symptoms” is not the same evidentiary standard as “the underwriter has it in writing that this is covered.”

If you are American, one more thing is worth knowing, because it is the difference between two legal worlds. Coverage regulated under the Affordable Care Act can only be rescinded for fraud or an intentional misrepresentation of a material fact, and the insurer has to give you thirty days' notice first. Careless answers do not cost you the policy. That protection is a feature of that regulatory regime, not of insurance generally, and an international plan written offshore is not in it. Americans who assume the ACA standard follows them abroad are assuming the wrong law.

Neither approach is universally better. FMU is cleaner if you have a known history and want certainty. Moratorium can work for someone with a clean recent history who wants a simpler application. What matters is knowing which one you're on, because they behave completely differently when something goes wrong.

Why declaring honestly almost always wins

The worry I hear from nomads (and it's reasonable) is "if I declare this condition, they'll either charge me more, exclude it, or decline me. Why not just leave it off and hope it never comes up?"

The math is wrong, even before the ethics.

A loading raises your premium for a year, sometimes permanently. Annoying, but the policy is in force, the condition is on the books, and the carrier has no claim to make at claim time. You bought certainty.

An exclusion means that specific condition isn't covered, but everything else is. Also annoying, but everything else includes the new conditions that might develop, and statistically, the things that will hurt you most in the next ten years are not the things you already have, they're the things you don't have yet. Excluding a known condition while keeping the unknown ones covered is often a fair trade.

A decline means the carrier won't write the policy. You go shop elsewhere, find a carrier with different underwriting tolerance, or accept that this carrier wasn't for you. Inconvenient, but you walked away knowing the truth.

Compare that to a non-disclosure that holds for three years and then unravels at the moment of a major claim. The policy comes apart. The claim, potentially tens or hundreds of thousands of dollars, is yours. Whether the premiums come back depends on which of the four outcomes above you land in, and if the omission was deliberate they do not come back at all. Either way the money does not undo the surgery you can no longer pay for.

Loading is worse than nothing. Exclusion is worse than loading. Decline is worse than exclusion. Voidance is worse than all of them combined. Declaring honestly gets you, at worst, decline. Hiding gets you, at worst, voidance. There's no scenario where the hiding strategy ends better than the disclosing strategy.

If you're already on a policy with something undisclosed

This happens, and it happens often. The honest path forward depends on a few variables.

If the condition was genuinely forgotten, because you remembered after signing or the diagnosis was old and minor, write to the insurer and send the records. There is no statutory route for this and no guarantee of how they will treat it: some will add a loading or an exclusion going forward, some will leave the policy alone, some will re-underwrite. What you are buying is a paper trail showing you volunteered it, which is a different conversation from the one that starts when an investigator finds it in your records.

If the condition was deliberately omitted and you've been on the policy for a while, the calculus is harder. Some advisors will tell you to leave it alone. I won't. Every month that passes is another month of premium paid into a policy that may not pay out when you need it. The right move is usually to disclose retroactively, accept whatever loading or exclusion comes, and convert a fragile situation into a stable one. If the carrier responds badly, you have time to shop other carriers and start clean. That time disappears once a claim is in progress.

If you're at the start of a new policy search and have anything in your history at all, the work is: pull your own records, list everything, declare everything, let the underwriter sort it. Their job is to price the risk. Your job is to give them the inputs to do it. Anything else is gambling with a policy.

The bottom line

The application question is the most consequential moment in your relationship with an insurance carrier, and it's also the one most people give the least thought to. They spend hours comparing premiums and seconds answering "have you ever been investigated for any condition."

Flip that. Spend the seconds on the premium comparison and the hours on the disclosure. Pull your records. List everything, including the things you don't think count. Declare it on the form. Take the loading, the exclusion, the decline, whatever comes, and end up with a policy that will actually pay when something serious happens.

The cheapest policy that voids at claim time is the most expensive product you can buy. The slightly more expensive policy that holds up is the only one worth having.