Pre-existing medical conditions complicate travel insurance — but they don't make it impossible. Australians with diabetes, heart conditions, cancer history, mental health conditions, asthma or any number of other diagnosed conditions can still get quality travel insurance with appropriate coverage. The process requires more care than standard applications, but the options are better than most people assume.

What Counts as a Pre-Existing Condition?

Every insurer defines this differently, which is part of what makes comparison so important. Generally, a pre-existing condition is any medical condition you were aware of before purchasing your policy — whether or not you've had treatment recently. This includes: diagnosed chronic conditions (diabetes, hypertension, heart disease, asthma), mental health conditions (depression, anxiety, PTSD), cancer (including remission), previous surgeries, ongoing medications, and even pregnancy in some cases.

The critical legal point: if you fail to disclose a pre-existing condition that was relevant to a claim, the insurer can void your entire policy. Always disclose. The worst outcome from disclosure is paying a higher premium or having that specific condition excluded from coverage. The worst outcome from non-disclosure is having your entire policy cancelled mid-trip when you need it most.

How Australian Insurers Handle Pre-Existing Conditions

Insurers take three main approaches. Full coverage with higher premium: Some insurers (World Nomads, Cover-More) assess pre-existing conditions individually and offer coverage that includes them for an additional premium. This is the ideal outcome — you pay more but you're genuinely covered. Exclusion from coverage: The condition is excluded but everything else is covered at standard rates. Acceptable for stable, well-managed conditions where a flare-up on the road is unlikely. Decline to cover: Some insurers decline applicants with certain conditions entirely — this is more common for recent cancer treatment, unstable heart conditions, or conditions requiring ongoing hospitalisation.

Best Options for Australians with Pre-Existing Conditions

World Nomads Explorer Plan: Has a more generous pre-existing condition assessment process than most competitors. Assesses each condition individually rather than blanket exclusions. Excellent adventure activity coverage alongside medical coverage.

Cover-More: Australia's largest travel insurer (backed by Zurich) has an established process for pre-existing condition applications. Phone assessment available for complex conditions. Strong Australian customer service for claims.

Southern Cross Travel Insurance: New Zealand-based but widely available in Australia. Online medical assessment tool provides immediate indication of coverage and premium loading for pre-existing conditions.

Fast Cover: Australian-based, strong reputation for covering pre-existing conditions including mental health. Their online assessment is straightforward.

InsureandGo: Often competitive on pre-existing condition premiums. Worth comparing alongside the above.

The Application Process

Most insurers with pre-existing condition coverage have an online medical screening questionnaire — typically 10–20 minutes. You'll be asked: the specific diagnosis, when you were diagnosed, your current treatment and medications, the date of your last medical appointment, any hospitalisation in the past 12–24 months, and whether your condition has been stable. "Stable" typically means no change in medication, no hospitalisation and no new symptoms in the past 6–12 months.

If the online assessment can't accommodate your condition, call directly — phone assessments with trained medical underwriters can often find solutions that automated systems miss.

What to Do if Declined

If one insurer declines, apply to others — underwriting standards vary significantly. Specialised medical travel insurance brokers (NIB Travel, AllClear Travel) specifically cater to travellers with complex medical histories and access underwriters that general travel insurance sites don't. The premium will be higher, but coverage is available for almost any stable condition.

Our Recommendation

Start with SafetyWing if you're travelling long-term with a stable, well-managed condition — their underwriting is more flexible for ongoing conditions. For single trips with complex pre-existing conditions, get quotes from World Nomads, Cover-More and Southern Cross and compare both the premium and what exactly is covered or excluded.

How Pre-Existing Conditions Are Assessed

Australian travel insurers use two approaches for pre-existing conditions. The automatic exclusion approach: common stable conditions (well-managed hypertension, type 2 diabetes, asthma) are excluded from coverage automatically without a screening process -- you can still buy the policy but those conditions aren't covered. The assessment and loading approach: you declare the condition, the insurer assesses it, and either covers it for an additional premium (loading), excludes it, or declines to insure you. Cover-More, 1Cover and Allianz all use assessment processes. World Nomads automatically excludes most pre-existing conditions without assessment.

The Conditions Most Often Covered with Loading

Well-controlled type 2 diabetes (no recent hospitalisation, HbA1c within target): typically coverable with loading of AUD $40-120 depending on destination. Managed hypertension (BP within normal range on medication): usually coverable with small loading. Asthma (using preventer inhaler, no recent emergency presentation): often covered with minimal loading. Hip and knee replacements more than 12 months post-operation: usually coverable. Cancer in remission (typically 5+ years): assessable, outcome depends on type and treatment history. The key for all conditions: be completely honest in the declaration process. Undeclared conditions void all coverage -- not just coverage for that condition. The AUD $50-150 loading is trivially cheap compared to the AUD $50,000-500,000 exposure of an uncovered overseas medical emergency.

Specialist Pre-Existing Condition Insurers

For Australians with significant pre-existing conditions that standard insurers decline or load heavily, specialist medical travel insurance exists. AllClear Travel Insurance (UK-based, covers Australians), Battleface, and several Australian brokers who access Lloyd's of London capacity can cover conditions that mainstream policies exclude. These specialist policies cost more -- sometimes significantly more -- but provide the coverage certainty that standard policy exclusions don't. For Australians planning expensive international trips with serious pre-existing conditions, the cost of specialist insurance should be calculated against the cost exposure of an uninsured overseas medical emergency: the premium is almost always the better financial decision even at specialist rates.

The pre-departure disclosure requirement is absolute: if you have a pre-existing condition, declare it during the purchase process. The short-term comfort of not declaring is outweighed entirely by the complete coverage void that results from non-disclosure at claim time. The short answer: travel insurance with genuine pre-existing condition coverage exists, it costs more than standard policies, and it is worth every cent of the additional premium.

Pre-Existing Conditions: The Assessment Process Explained

The Australian travel insurance pre-existing condition assessment process for the three major insurers: Cover-More (online assessment at covermore.com.au, 10-15 minutes, covers 40+ conditions with immediate online decision and premium loading or exclusion notification); 1Cover (online assessment with similar coverage, immediate decision); World Nomads (medical screening process for conditions not automatically covered, 24-48 hour assessment turnaround). The conditions automatically covered without assessment by most Australian comprehensive policies: conditions stable for 12+ months with no hospitalisation, no change in medication, and no pending investigation. The conditions always requiring assessment: cardiac conditions, cancer (within 5 years of treatment completion), chronic obstructive pulmonary disease, diabetes with complications, and conditions where the treating doctor has advised against travel. The assessment result options: covered at standard premium, covered with a loading (5-50% premium increase), covered with an exclusion (the condition itself and directly related events are excluded but everything else is covered), or declined. An exclusion is often better than no insurance -- the cardiovascular exclusion on a policy still covers the broken leg, the flight cancellation, and the lost luggage.