Does Private Medical Insurance Cover Pre-Existing Conditions?
13 November 2026
Quick answer: Usually no. Private medical insurance covers new conditions that start after your cover begins. What happens to your past health depends on how the insurer assesses you: moratorium or full medical underwriting. Leave something out and you can lose your cover.
The short answer
Usually no. Private medical insurance is built for new conditions that start after your cover begins. What happens to your past health depends on how the insurer assesses it, and that is called underwriting.
What counts as pre-existing
Bupa describes pre-existing conditions as conditions or injuries you had before your policy started. Vitality's definition is wider. It covers any medical problem you had before applying, including physical health, mental health, long-term conditions and one-off events.
Physical
An injury, a past operation or ongoing symptoms.
Mental health
Treatment or support you had before applying.
Long-term
Conditions needing regular checks, tests or medication.
Have a health history?
Tell us what you have had and we will explain how insurers are likely to treat it, before you pay anything.
Two ways insurers assess you
First-time customers are usually offered a choice between these, according to Vitality.
Moratorium underwriting
You do not give your full medical history upfront. Conditions from the past are excluded for a set period, and the insurer checks your history if you claim.
Vitality says it may suit someone whose condition is well managed by the NHS, or who does not need treatment for it.
Full medical underwriting
You give your history when you apply. The insurer tells you up front what is excluded.
Vitality says this can mean cover for something a moratorium would exclude, and you know where you stand before you claim.
How far back the insurer looks, and how long you must go without symptoms or treatment, varies by insurer. Ask us for the exact wording before you choose.
Mistakes that cost people their claim
Leaving something out. Vitality warns that if you claim for a pre-existing condition you did not declare, you will not get treatment and your policy may be cancelled.
Assuming it is covered. A new condition may be covered at first, then treated as ongoing (chronic) and no longer covered. Check the wording on this.
Expecting the emergency to be covered. In one published Financial Ombudsman decision, a Bupa policy did not cover diagnosis and treatment of a chronic condition after an emergency admission to an NHS hospital. The ombudsman found the policy terms clear.
Mixing up chronic and acute. Bupa says chronic conditions need ongoing or long-term monitoring, check-ups or tests. Acute conditions are expected to respond to treatment.
What this means for you
New conditions after you join
- Can be covered under the plan
- Specialist, scans and treatment, within plan limits
- Cancer and mental health are not treated as chronic by Bupa
Past or ongoing conditions
- Usually excluded
- Long-term conditions are not covered by most plans
- Not declaring them can cost you the cover
Before you apply
- List your health historyInclude illness, injury, tests and treatment, even if it seems minor.
- Choose how to be assessedTalk through moratorium and full medical underwriting with us.
- Read the exclusionsCheck the policy wording for chronic conditions and general exclusions.
- Tell the truthDeclare everything asked. It protects your claim.
Want help choosing?
We arrange private medical insurance with Bupa. We go through your history and the options before you buy.
FAQs
Does private medical insurance cover pre-existing conditions?
Usually not. Bupa says most health insurance does not cover conditions you had before the policy started. How an insurer treats your history depends on how you are underwritten.
What is moratorium underwriting?
You do not give your full medical history upfront. Past conditions are excluded for a set period and the insurer checks your history if you claim. The rules vary by insurer.
What is full medical underwriting?
You give your medical history when you apply and the insurer tells you what is excluded before you buy. Vitality says it may let you cover something that a moratorium would exclude.
What happens if I do not declare a condition?
Vitality says you will not get treatment for it and your policy may be revoked.
Are long-term conditions covered?
Bupa says conditions like asthma and diabetes are not covered by most health insurance.
Can I switch insurer and keep my cover?
Some insurers offer ways to transfer from another policy, but it depends on the insurer and your history. Ask us before you cancel anything.