Pre-Existing Condition
A pre-existing condition is any medical issue, illness, or symptom that existed before your insurance coverage began, regardless of whether it was formally diagnosed. Insurers use this definition to assess risk and determine eligibility for certain benefits, particularly in medically underwritten or travel plans.
In health and dental coverage, pre-existing conditions may affect acceptance or limit coverage for specific treatments. In travel insurance, a pre-existing condition clause defines whether recent changes in medication or symptoms are stable enough to qualify for emergency medical protection. Some guaranteed acceptance plans still cover pre-existing conditions but with lower limits.
How It Works
In Canada there is no single national definition of a pre-existing condition. What counts is determined by your specific policy wording, which varies between insurance products and between insurers. In general, insurers consider a condition pre-existing if before coverage began you experienced symptoms or sought medical advice, received treatment or specialist referrals, took prescription medication including as-needed, or received a diagnosis. Insurers treat pre-existing conditions differently because they represent a higher financial risk, reviewing your medical history to assess risk, determine premiums, and decide whether to approve coverage, apply ratings, or impose exclusions.
How a pre-existing condition affects you depends on the plan type. Standard personal health insurance in Canada often excludes or limits coverage for pre-existing conditions through waiting periods or exclusions, while guaranteed issue plans accept all applicants regardless of health history and generally cover pre-existing conditions, though they may come with benefit caps. In Canadian group benefits (employer) plans, a pre-existing condition clause usually applies only to new employees during a waiting period, often the first 3, 6, or 12 months of employment, after which the condition is typically covered. Under a disability income-replacement "24/24" pre-existing condition amendment, claims are excluded when the insured had a pre-existing condition within the 24 months prior to coverage, the disability is related to it, and the disability begins within 24 months after coverage takes effect.
Example:
If you were treated for asthma before applying for a medically underwritten Canadian health and dental plan, your insurer may review that condition when determining eligibility or pricing, and treatment related to the asthma could be excluded during a waiting period before the plan covers it.
What to Watch For:
Disclosing a pre-existing condition is critical, because omitting it on an application is a fraudulent act that can void your policy, and claims can be denied for non-disclosure or incomplete records. Be aware that pregnancy can count as a pre-existing condition, so fees incurred from a pregnancy underway when you buy a plan with a pre-existing clause may be ineligible for reimbursement, though pregnancy would be covered when moving from a group plan into a guaranteed issue plan.






