A condition is stable when, for the whole look-back period before the effective date, there was no new diagnosis, no new or stopped medication, no dose change, no new or worsening symptom, no hospitalization, and no test or specialist referral pending. The period runs from 90 to 365 days depending on the insurer and the parent’s age. Feeling well is not the test; the medical record is.
The definition decides whether a pre-existing condition is covered at all. GMS’s policy wording excludes conditions “which have not been stable for 180 days immediately prior to your effective date.” Every insurer we compare has an equivalent clause; the days and the list of changes differ.
What does the definition usually include?
Six or seven tests, all of which must be passed for the entire period. Failing any one makes the condition unstable. Most wordings also treat a doctor’s recommendation for treatment, even if not followed, as a change.
| Test | Stable | Not stable |
|---|---|---|
| Diagnosis | Same diagnosis throughout | New diagnosis, or an existing one re-classified |
| Medication | Same drugs, same doses | New drug, stopped drug, dose up or down |
| Symptoms | No new or worsening symptoms | New symptom, or a known one got worse |
| Treatment | No new treatment started or recommended | Procedure done, scheduled or advised |
| Hospital | No admission | Any overnight admission for the condition |
| Tests | None ordered or pending | Scan, blood test or other investigation ordered, or results awaited |
| Referral | None | Referred to a specialist, appointment pending |
Some wordings add that the condition must not have required a change in treatment, and some list exceptions for routine dose adjustments of specific drug types. Read the exact list in your policy; the how to read your policy page shows where it sits.
How long is the look-back period at each insurer?
From 90 days to a full year, with most insurers lengthening it as the parent ages. The period is measured back from the effective date, so a delayed visa that pushes the date later also pushes the look-back window later. Terms seen October 2026 in insurer wordings and the PolicyAdvisor and BestQuote summaries — verify in the policy document.
| Insurer (underwriter) | Under 60 | 60 to 69 | 70 to 79 | 80 and over |
|---|---|---|---|---|
| Allianz Global Assistance (CUMIS General Insurance) | 90 days | 180 days | 180 days | 180 days to 89 |
| TuGo (iA Financial Group) | 90 days to 59 | 120 days | 180 days | 180 days to 85; 365 days at 86+ |
| Manulife CoverMe (Manufacturers Life) | 180 days | 180 days | 180 days | 180 days to 85 |
| Secure Travel/RIMI (iA Financial Group; claims by MSH) | 90 days | 90 days | 180 days | 180 days to 84 |
| Destination (Zurich Insurance Company Ltd, Canadian Branch) | 90 days | 120 days | 180 days | Pre-existing excluded |
| GMS (Group Medical Services) | 180 days | 180 days | 180 days to 79 | Not issued |
| 21st Century Enhanced (Manulife) | 180 days | 180 days | 180 days | 180 days to 85 |
| Travelance (Old Republic Insurance Company of Canada) | Per policy wording | Per policy wording | Per policy wording | To 85 |
TuGo offers an optional rider that covers conditions unstable for up to 7 days, to age 79. 21st Century Basic has no pre-existing cover at all. GMS asks no medical questions under 55 but still applies the 180-day stability exclusion at claim time.
What does stable look like for common conditions?
The same event can be stable at one insurer and unstable at another, purely because of the period. The examples below assume an effective date of 1 March 2027.
| Condition | Event | 90-day period (from 1 Dec 2026) | 180-day period (from 2 Sep 2026) |
|---|---|---|---|
| Hypertension | Dose of amlodipine increased 15 October 2026 | Stable | Not stable |
| Hypertension | Same drug and dose for 2 years; routine check in January showed normal readings | Stable | Stable |
| Type 2 diabetes | Metformin unchanged; HbA1c test in November 2026 with result on file, no change made | Stable at most insurers; a test is a grey area, ask in writing | Same |
| Type 2 diabetes | Started insulin 1 August 2026 | Stable | Not stable |
| Coronary disease | Stent placed 3 years ago; aspirin and statin unchanged since | Stable | Stable |
| Coronary disease | Chest pain in December 2026, stress test ordered for February 2027 | Not stable | Not stable |
| Asthma | Rescue inhaler used once in January 2027, no prescription change | Usually stable; some wordings count increased use | Same |
| COPD | Prednisone course for a flare in October 2026 | Stable | Not stable |
| Arthritis | New anti-inflammatory prescribed 20 February 2027 | Not stable | Not stable |
| Cancer | Treatment finished 2 years ago, follow-up scan in September 2026, clear | Stable at most insurers | Grey area at insurers that count tests; ask |
| Dementia | Donepezil dose increased 1 January 2027 | Not stable | Not stable |
These are illustrations of how the clock works, not rulings. The condition pages for hypertension, diabetes and heart conditions go deeper on each.
What happens if a condition is not stable?
Three outcomes: the insurer excludes that condition and covers everything else, the insurer declines the application, or the family picks an insurer whose period the condition passes. A fourth is to wait until the period has run. The worst outcome is buying anyway and finding out at claim time.
| Option | When it fits |
|---|---|
| Choose a 90-day insurer | Change was more than 90 but less than 180 days ago; parent under 70 at Secure Travel or Destination, or under 60 at Allianz and TuGo |
| Move the effective date later | Visa timing allows; the change will fall outside the window by the new date |
| Buy with the condition excluded | Parent accepts that a flare of that condition is unpaid; everything else covered |
| TuGo unstable-condition rider | Condition unstable for 7 days or less; parent 79 or under; confirm at quote time |
| No-pre-existing plan | Only if the parent has no other conditions; every pre-existing condition is excluded |
The CP24 case, a $96,311 bill initially denied for undisclosed heart failure, is what buying anyway looks like. The medical questionnaire page explains how to answer so the adjuster finds what you declared, and the THIA Bill of Rights gives a 10-day free look to re-read the definition after purchase.
Questions people ask
What breaks stability?
Any of: a new diagnosis, a new medication, a stopped medication, a dose increase or decrease, a new or worsening symptom, a hospital admission, a test ordered or results awaited, or a referral to a specialist, during the look-back period. Most wordings count a medication change even if the doctor called it routine.
How long is the look-back period?
Allianz 90 days under 60 and 180 days from 60 to 89. TuGo 90 days to 59, 120 to 69, 180 to 85, 365 at 86 and over. Manulife, GMS and 21st Century Enhanced 180 days. Secure Travel 90 days to 69 and 180 from 70 to 84. Destination 90 days 0-59, 120 days 60-69, 180 days 70-79. Measured back from the effective date.
Is well-controlled high blood pressure stable?
Yes, if the medication and dose have not changed and no new symptoms or tests arose in the look-back period. A dose adjustment three months before a policy with a 180-day period makes it unstable; the same adjustment before a 90-day period does not. The same parent can be stable at one insurer and not at another.
Does a change of brand count as a medication change?
Usually not if it is the same drug at the same dose, for example a generic substitution. A change to a different drug in the same class usually does count. Wordings vary and some list exceptions for routine adjustments of insulin or blood thinners. Ask the insurer in writing before relying on an exception.
What if the condition was unstable but is now fine?
Stability is measured over the whole look-back period, not at the end of it. A condition that changed four months ago is unstable for a 180-day period until the six months have passed. Options are to wait, to choose an insurer with a shorter period, or to buy with the condition excluded or under TuGo's optional unstable-condition rider.
Who decides whether a condition was stable?
The claims adjuster, after the event, by comparing the questionnaire with the parent's medical records from home and from Canada. That is why the records, not the parent's memory, should drive the answers. A written confirmation from the insurer before purchase about a specific situation is strong evidence later.
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Sources
- GMS — Immigrants and Visitors to Canada policy wording (180-day stability definition)
- PolicyAdvisor — Super visa insurance cost tables (stability periods by insurer)
- BestQuote — Super visa insurance rates (stability periods)
- CP24 — $96,311 hospital bill initially denied for undisclosed heart failure
- THIA — Travel Insurance Bill of Rights and Responsibilities