Can you get private medical insurance with pre-existing conditions?
Yes, you can often buy private medical insurance (PMI) if you have a pre-existing condition. Buying a policy and getting treatment for that condition covered are two different things.
An insurer may offer you cover for new, unrelated medical problems while excluding treatment linked to your existing condition. Whether the policy is worthwhile depends on what is excluded, what remains covered and why you wanted PMI in the first place.
If you are considering PMI because you already need a particular scan, consultation or operation, establish whether that care would be covered before buying. A new policy will not usually pay for an existing problem simply because you have not yet received a diagnosis.
Compare PMI options with a medical history
What counts as a pre-existing condition?
A pre-existing condition is generally a medical problem that existed before your cover started. Insurers may consider more than the date of a formal diagnosis. Depending on the policy, relevant history can include:
- Symptoms you had noticed
- Advice you sought from a GP or another clinician
- Medication you took
- Tests, scans or investigations
- Referrals or appointments you were waiting for
- Previous treatment or surgery
- A diagnosed condition that still needs monitoring or care
Suppose you develop recurring knee pain in March and buy PMI in April. If a scan in May identifies the cause, the insurer may still regard the knee problem as pre-existing: the symptoms began before the policy did.
That is why “I hadn’t been diagnosed yet” does not necessarily mean “it is a new condition.” The insurer’s definition and the facts of your medical history determine how a claim is assessed. Our broader guide to PMI and pre-existing conditions explains the distinction further.
Can you still get PMI if you have an existing condition?
Often, yes. Having asthma, arthritis, a previous injury, a mental health history or another medical issue does not automatically prevent you from obtaining a PMI policy.
The insurer may, however, exclude claims connected with some or all of that history. You could then have cover for separate new conditions that meet the policy’s terms.
For example, a policy might exclude treatment for an existing back problem while still providing eligible cover for an unrelated illness that begins later. Whether a particular future problem is genuinely unrelated is something the insurer may need to assess when you claim.
The question to put to an insurer or adviser is therefore:
What would be excluded for me, and what useful cover would I still have?
How does the insurer decide what is excluded?
The approach depends partly on the policy’s underwriting method. Two common methods for individual PMI are full medical underwriting and moratorium underwriting. Neither is automatically better for everyone.
Full medical underwriting
With full medical underwriting, you answer questions about your medical history when you apply. The insurer reviews your answers and tells you about any specific exclusions it applies.
This can give you a clearer view of the stated exclusions before you decide to buy. But read their exact wording. An exclusion might refer to a named condition, an area of the body or related problems; its scope matters.
You must answer the questions accurately and completely. If you cannot tell whether an old symptom, referral or treatment is relevant, ask for clarification rather than deciding to omit it.
Moratorium underwriting
With moratorium underwriting, you may not have to provide a full medical history at the start. Instead, the policy applies rules to conditions for which you had symptoms, advice, medication or treatment during a defined period before joining. The insurer may investigate that history when you make a claim.
Under some policies, a previously excluded condition may become eligible after a specified period without symptoms, treatment, medication or medical advice. The exact conditions and time periods vary.
Do not assume an exclusion automatically ends after two years. Ask what counts as remaining free of symptoms and treatment, how the insurer assesses a later claim, and whether the condition you are concerned about could realistically meet the policy’s rules.
| Question | Full medical underwriting | Moratorium underwriting |
|---|---|---|
| When is your history assessed? | Largely when you apply | Often when you claim |
| When do you learn about specific exclusions? | Usually before accepting the policy | Some decisions may only become clear at claim stage |
| Can an existing condition become eligible later? | Ask whether the insurer can review a specific exclusion | Some policies allow this if their precise conditions are met |
| Main point to check | The wording and scope of stated exclusions | The look-back rules and requirements for later eligibility |
Will PMI cover symptoms that have started but are not diagnosed?
Do not count on it. An insurer may consider a problem pre-existing if the symptoms began before cover, even if the underlying illness was identified afterwards.
This matters if you are already:
- Waiting for a GP appointment or specialist referral
- Waiting for an MRI or another test
- Investigating an unexplained symptom
- Considering private treatment for a problem you have noticed
If your immediate goal is to get an existing problem investigated, compare the cost of paying privately for that consultation or test with your NHS options. Buying PMI may still make sense for future eligible conditions, but it may not fund the investigation already under way.
What can PMI cover despite an exclusion?
An exclusion for one condition does not necessarily remove every benefit from the policy. Depending on your cover and the circumstances of a claim, PMI may help with:
- Specialist consultations for a new eligible condition
- Eligible diagnostic tests and scans
- Hospital treatment or surgery for a covered condition
- Cancer diagnosis and treatment within the policy’s cancer terms
These benefits are not identical across policies. Outpatient limits can affect consultations and tests. Scan rules, hospital lists, excesses and cancer benefits also vary. Read our guides to inpatient and outpatient cover, MRI and CT scan cover and cancer cover when comparing what you would actually receive.
PMI may offer another route to eligible private care. It cannot guarantee how quickly a particular appointment will be available, that a condition will be covered or that treatment will shorten time off work.
What about chronic conditions?
PMI generally focuses on eligible treatment for acute conditions rather than routine, long-term management of chronic illness. If you have a condition such as diabetes or arthritis, regular monitoring, medication and ongoing management may remain outside the scope of an individual PMI policy.
That does not automatically rule out PMI for other health problems. It does mean you should assess the policy against your actual reason for buying. If most of the care you expect to need concerns an excluded chronic condition, the remaining cover may offer poor value for you.
Should you declare an old condition?
Answer every question the insurer asks accurately and completely. Include relevant symptoms and treatment where the question calls for them, even if the problem seems minor or has not been formally diagnosed.
Under full medical underwriting, this usually means providing medical information during the application. Under moratorium underwriting, you may not be asked for a full history upfront, but the insurer can still examine your earlier symptoms and treatment when assessing a claim.
If a question is unclear, ask what it means and keep a record of the answer. Assuming that an old problem “doesn’t count” can leave you with a very different claim outcome from the one you expected.
Can you switch insurer if you have medical history?
You may be able to switch, but check the underwriting terms before cancelling existing cover.
A new insurer might treat a condition you developed while holding your current policy as pre-existing. In some circumstances, a switching or continuation arrangement may preserve aspects of your existing cover, subject to the new insurer’s criteria. It should never be assumed to happen automatically.
This is particularly important if you are leaving a company PMI scheme. Ask for a clear comparison of your current terms and the proposed new terms, including any change to exclusions, benefits and excess.
How can an adviser help?
An adviser can help you compare how available policies deal with medical history and explain the practical effect of their underwriting rules. That is useful when the cheapest quote comes with exclusions or benefit limits that undermine the reason you wanted cover.
Ask an adviser to work through these questions with you:
- How would my known conditions and symptoms be treated?
- What is excluded, and does the exclusion extend to related problems?
- Could any exclusion be reviewed later? Under what exact conditions?
- What cover remains for new, unrelated problems?
- Do outpatient limits, scan rules, cancer benefits or the hospital list restrict the care I value?
- What would I pay in premiums and excess, and could I sustain that cost?
An adviser can explain and compare the options. They cannot guarantee that an insurer will cover a condition or approve a future claim. Our guide to questions to ask before buying PMI is a useful checklist.
When might PMI still be worth it?
PMI may still be worth considering if you understand the exclusions, want cover for future eligible conditions and can comfortably afford the premium. An existing medical problem may be important to you without being the only health risk you want to insure against.
It may be less suitable if:
- Your main aim is treatment for a condition the new policy would exclude
- Most of your likely care involves ongoing chronic management
- The premium would put pressure on essential spending
- The remaining cover does not justify its cost for you
If you are self-employed and worry mainly about income while you cannot work, remember that PMI does not replace lost earnings. Income protection addresses a different risk.
The decision to make
You do not need a policy that covers everything for PMI to be useful. You do need to know what it will exclude for you.
Start with your medical history and the care you hope the policy would help you access. Compare underwriting methods, ask for exclusions to be explained, then weigh the remaining benefits against the premium and excess. If the care you most need would be excluded, recognise that before committing to a policy.
Compare private medical insurance with a pre-existing condition
Private medical insurance terms, exclusions and claim decisions vary by insurer and policy. Check the policy documents and your individual underwriting terms before buying.
