Travel Insurance and Pre-Existing Medical Conditions
Read the medical-stability definition and the period reviewed before departure to avoid a denied claim.
Published 2026-07-21
Travel insurance rests on a definition travellers discover at claim denial: medical stability, a contractual notion rather than a medical one. A condition is covered if it stayed stable during the period before departure — three to six months depending on the policy — stability defined by no new diagnosis, no new symptoms, no hospitalization and no change in medication, dosage included, an adjustment reflecting better control still breaking stability. A change before departure calls for a call to the insurer, never silence: depending on the policy, the condition becomes uncovered, a rider exists, or a specialized insurer with a detailed questionnaire covers the condition as it stands, at a surcharge. During the trip, non-urgent care requires the assistance line's prior authorization, and an emergency calls the line as soon as possible. This article dissects the stability definitions, the options by calendar and the procedures that make a claim settle instead of being argued.
Read the contract's definition of stability
The pre-existing condition clause rests on a precise notion, stability, defined differently by each insurer. The typical wording requires that during a set period before departure there was no new diagnosis, no change of treatment, no change in dosage, no new symptom, and no consultation for worsening. Some contracts explicitly exclude dose adjustments; others tolerate changes of brand for the same medication. That definition is the heart of a travel contract, more so than the coverage amount, and it is read in full before purchase, not after.
Count the review period backwards
The stability period generally runs from three to twelve months before the departure date, and its length varies by insurer, age and product. The calculation runs backwards from the departure date, with the medical file in hand rather than from memory. A consultation for a minor adjustment three months before the trip can be enough to break the stability of a condition controlled for fifteen years. That reality calls for a concrete check of appointment, prescription and renewal dates, often more revealing than anyone's recollection of them.
Declare every change, however minor
The medical questionnaire must be completed with complete accuracy, and omitting a seemingly unimportant detail is enough to void the coverage. A change of medication, a test ordered by the doctor, a consultation for an unexplained symptom — all of it gets declared. The completed questionnaire is kept, along with the insurer's confirmation. A change occurring between buying the policy and departing, such as a new prescription, must also be reported: stability is assessed as of the departure date, not the purchase date, a distinction that escapes almost everyone.
Get authorization before treatment
Most policies require contacting the assistance service before receiving care, except in an immediate life-threatening emergency. Failing that obligation can reduce the settlement substantially, sometimes by half, even for care otherwise covered. The assistance number is therefore carried on your person and not only in documents left at home. A prior consultation with the insurer, before departure, about a specific condition, is done in writing and kept: it is the only way to know whether the coverage will genuinely apply when the day comes.
Quebec scenario: compare before confirming
The trip to Greece has been booked for months when the doctor of a retiree in Chicoutimi adjusts her blood-pressure medication — a simple dosage change, three weeks before departure. A reflex turned familial since a friend's claim denial: reread the travel insurance before leaving, starting with the pre-existing-conditions clause. The stability definition fills a dense paragraph: a condition is covered if it has remained stable during the period before departure, six months in her policy, and stability is defined there by the absence of new diagnosis, new symptoms, hospitalization and — the crucial point — any change in medication, dosage included, decreases as much as increases. Last week's adjustment therefore breaks her condition's stability, and a blood-pressure emergency during the trip would not be covered — even though the change reflects better control. The solutions compare across three calls: her credit card's insurer applies a similar definition; a specialized insurer offers a policy with a detailed medical questionnaire that covers the condition as it stands, $180 more; and her current policy offers a rider reducing the required stability period to thirty days after stability returns, an option her calendar cannot use. She takes the specialized policy, declares the change in black and white, and notes the rule for all future trips: between the doctor and the insurer, the order of the calls matters — and the second must always know what the first has done.
Checklist
- Read your policy's stability definition
- Count the period examined before departure
- Treat any dosage change as a break
- Call the insurer before leaving, never stay silent
- Compare the rider and a specialized insurer
- Declare the changes in black and white
- Get authorization before non-urgent care
- Call assistance the moment of an emergency
- Travel with the policy, numbers and medication list
Frequently asked questions
What is medical stability in a travel policy's sense?
A contractual definition, not a medical one: no new diagnosis, no new symptoms, no hospitalization and no change in medication — dosage included — during the period before departure, three to six months depending on the policy. An adjustment reflecting better control still breaks stability.
What if my medication changes before departure?
Call the insurer before leaving: depending on the policy, the condition becomes uncovered, a rider exists, or a specialized insurer with a detailed medical questionnaire covers the condition as it stands, at a surcharge. The order of the calls matters: the insurer must always know what the doctor has done.
Which precautions apply during the trip?
For non-urgent care, get the assistance line's authorization before consulting, as the policy requires; for emergencies, call assistance as soon as possible. Documents at hand: the policy, the assistance number, the medication list. A claim that follows the procedures settles; an improvised one gets debated.