What you need to know before you rely on a policy
What the cover is for
Private medical insurance is designed for an acute condition — a problem that starts after the policy begins and that treatment is expected to put right. That single idea explains most of what follows. If a condition is expected to need ongoing management rather than a course of treatment with an end point, insurers treat it as a chronic condition and fund little or nothing. If it existed before you applied, underwriting decides whether it is covered at all.
It is not a replacement for the NHS, and it does not remove any NHS right. Emergency care, most long-term condition management and routine maternity care stay with the NHS, and the NHS Constitution sets out the rights you keep whether or not you hold a policy. [7] What private cover buys is speed, choice of consultant and choice of facility for planned treatment that falls inside the policy terms.
What most policies include
Almost every UK policy is assembled from the same building blocks. The core is inpatient and day-patient treatment: the surgery, the hospital stay, the surgeon, the anaesthetist and the associated hospital charges. Around that core sit optional modules that buyers switch on or off, and those modules are where the price and the payout both move.
- Specialist consultations after a GP referral
- Diagnostic tests and scans, once the insurer has authorised them
- Inpatient and day-patient treatment in a private hospital
- Surgeons’, anaesthetists’ and hospital fees for eligible treatment
- Cancer cover, which in many policies is a separate module with its own terms
- Mental health and therapies cover, usually capped in sessions or money
- A hospital cash benefit when you have eligible treatment on the NHS instead of claiming
The building blocks are consistent; the small print is not. One insurer may pay for a scan on an outpatient basis without limit, while the next counts the same scan against a £1,000 annual outpatient allowance. Neither is wrong — they are different products at different prices, and the only reliable way to compare them is to read the two policy wordings side by side.
What is usually excluded
| Exclusion | Why it applies |
|---|---|
| Pre-existing conditions | Underwriting decides which past conditions are covered; see how medical underwriting works. |
| Chronic conditions | Policies fund treatment that cures or stabilises, not ongoing management of a long-term condition. |
| Accident and emergency | Emergency care is an NHS service; private hospitals rarely run emergency departments. |
| Routine pregnancy and childbirth | Normally excluded, though some policies cover specified complications. |
| Cosmetic treatment | Excluded unless it follows an eligible accident or covered surgery. |
| Treatment outside the hospital list | Cover usually applies only at facilities the insurer recognises for your plan. |
Exclusions are not there to catch people out; they are what keeps the product priced for the risk it actually carries. The practical consequence is that a policy is best judged on its exclusions rather than its inclusions. Two questions answer most of it: what has happened to me medically in the past, and what does this insurer do with that history?
Judging a policy on cover alone
What works well
- Fast access to a specialist and to diagnostics for a new, eligible problem
- A named hospital list, so you know in advance where you can be treated
- A cash benefit in many policies if you choose NHS treatment instead
- Clear, written terms that the regulator requires to be summarised in a short document
What to watch
- Chronic and pre-existing conditions sit outside almost every policy
- Outpatient allowances are where two similar-looking policies diverge most
- Nothing is normally payable without authorisation before treatment
- The premium is reviewed every year, and claims history feeds into it
How limits and hospital lists change what you get
Two policies with the same headline description can pay very differently. Outpatient cover may be unlimited, capped at a money amount, or excluded altogether. Therapies, mental health cover and cancer cover are often modular. The hospital list attached to your policy also decides where you can be treated, and lists in central London are routinely narrower — and more expensive to widen — than lists elsewhere. [3]
Information about private providers is more public than it used to be. The Private Healthcare Information Network publishes data on private hospitals and consultants, including the procedures they perform, which is a useful way to sanity-check a hospital list before you buy. [4] It is also worth knowing that the private market has been examined in detail by the competition regulator, whose investigation led to ongoing obligations on private hospitals and consultants about the information they must disclose. [3]
How much the market pays out
Cover is now widely held. Association of British Insurers data published in January 2026 shows 6.5 million people in the UK were covered by private medical insurance in 2024, up about 4% on the year, and that insurers processed a record £4 billion of individual and workplace claims — roughly £11 million a day. Around 4.7 million of those people were covered through an employer scheme rather than an individual policy. [1]
- 20233.57 bn
- 20244 bn
Those numbers matter to a buyer for one reason: they show that claims are routinely paid, at scale, and that the growth in cover is being driven substantially by employers. If you are weighing a policy up, it is worth checking whether you already have cover through work before buying your own.
Adviser insight
“The misunderstanding I see most often is that people expect a policy to behave like the NHS with shorter queues. It does not. It is built around acute conditions that respond to treatment, so a new knee problem is usually in and a long-term condition you already live with usually is not. Read the outpatient limit before you read anything else — that single line decides whether the scans and consultations that lead up to treatment are paid for, and it is where most disappointment starts.”

How a claim actually runs
Cover only becomes real at the point of claim, and the sequence is almost always the same. You see your GP; the GP refers you; you tell the insurer before anything is booked; the insurer confirms the treatment is eligible and issues an authorisation number; treatment goes ahead at a facility on your list; the hospital invoices the insurer directly; you pay only your excess and anything the policy does not cover.
Step 1: See your GP and get a referral
Self-referral is accepted by some insurers for some services, but the default route is a GP referral.
Step 2: Call the insurer before booking
This is pre-authorisation. Booking first is the most common reason a claim runs into trouble.
Step 3: Check the facility is on your list
Treatment at a hospital outside your list may be refused or only part-paid.
Step 4: Let the hospital invoice the insurer
Most bills are settled directly; you are billed separately for the excess.
Step 5: Keep the paperwork
If you later need to complain, the authorisation record and the wording are what the case turns on.
If a claim is declined and you disagree, you complain to the insurer first, and then, if you are still unhappy, to the Financial Ombudsman Service, which handles medical insurance complaints and can direct a firm to put things right. [5]
Where the rules come from
Private medical insurance is a regulated product. Firms selling it must give you appropriate information about the policy in good time before you commit, including a short standardised summary document, so that you can make an informed decision. [2] Since the Consumer Duty came into force, firms also have to show that products deliver good outcomes for retail customers and that communications support understanding rather than merely disclose. [6]
None of that changes the basic discipline for a buyer: the summary document tells you the shape of the cover, and the full wording tells you whether your particular situation is inside or outside it. Where the two appear to conflict, the wording governs.
What to check before you rely on a policy
Step 1: Read the policy wording, not the brochure
The wording is the contract; the summary is not.
Step 2: Check the exclusions and any personal exclusions
Underwriting can add exclusions specific to you, on top of the standard list.
Step 3: Check the hospital list
Cover usually applies only at facilities the insurer recognises for your plan.
Step 4: Check the outpatient limit
This is where most policies differ most, and where most unexpected bills come from.
Step 5: Check what happens at renewal
Ask how claims affect the premium and whether any no-claims discount can be protected.
If you want to go deeper, read how medical underwriting works, what an excess is and the NHS 18-week waiting time standard, which together explain most of what decides whether a policy is worth holding.
Looking at cover with PremierPMI
PremierPMI is a specialist private medical insurance broker and the publisher of The Health Guide. If you want to talk through what this means for your own cover, you can start there.
Or, if you would rather start here, send an enquiry and PremierPMI will contact you.
Common questions
Does private health insurance cover pre-existing conditions?
Does private health insurance cover A&E or emergencies?
Can I use private health insurance instead of the NHS?
How many people in the UK have private health insurance?
What is the difference between outpatient and inpatient cover?
Do I need a GP referral to claim?
Will my premium go up if I claim?
What should I do if a claim is turned down?
Sources and methodology
- [1] Association of British Insurers. “Insurers process record £4bn across individual and workplace health schemes (2024 data)”. View source(opens in a new tab)Primary source
- [2] Financial Conduct Authority. “ICOBS 6: Product information (FCA Handbook)”. View source(opens in a new tab)Primary source
- [3] Competition and Markets Authority. “Private healthcare market investigation”. View source(opens in a new tab)Primary source
- [4] Private Healthcare Information Network. “Information about private hospitals and consultants”. View source(opens in a new tab)Primary source
- [5] Financial Ombudsman Service. “Complaints about medical insurance”. View source(opens in a new tab)Primary source
- [6] Financial Conduct Authority. “The Consumer Duty”. View source(opens in a new tab)Primary source
- [7] Department of Health and Social Care. “The NHS Constitution for England”. View source(opens in a new tab)Primary source
- [8] NHS England. “Referral to treatment (RTT) waiting times statistics, July 2026 data”. View source(opens in a new tab)Primary source
We cite primary sources wherever possible. Read about our sourcing methodology.

Stuart Hendy
PMI Expert and Head of Publishing, PremierPMI
- 20 years in UK private medical insurance
- Underwriting and corporate placement specialist
Stuart brings over 20 years of experience advising on UK private medical insurance. He is a key member of the private medical insurance team and Head of the Publishing Team, gathering detailed client requirements, liaising with insurers on tailored quotes, and running training on insurer product changes and underwriting nuance.
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Parvoz Haydarov
Founder, PremierPMI
- Founder of PremierPMI
- Whole-of-market private medical insurance
Parvoz founded PremierPMI as a specialist private medical insurance brokerage. He sets the direction of the firm — insurer relationships, service standards, compliance culture and the editorial bar for everything published under the PremierPMI name — and personally reviews the largest corporate and family cases before they go to market.
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