Health insurance terms explained for UK private medical insurance
This health insurance glossary explains the main terms you may see when you compare or buy private health insurance in the UK, from acute and chronic conditions to excess, exclusions and medical underwriting. Use it as a plain English guide so you can understand what insurers, brokers and advisers are talking about, avoid nasty surprises in the small print and find cover that genuinely suits your health needs and your budget. Private medical insurance is a complicated product, and it can be confusing if you’ve never applied for this type of cover before.
What is private medical insurance?
Private medical insurance (PMI), often shortened to health insurance, is a policy that pays for private healthcare, such as consultations, scans, hospital treatment and specialist care, according to the level of cover you choose. It is designed to complement treatment you might receive on the NHS, reduce the cost of private medical treatment, and avoid lengthy NHS waiting times.
Why use a health insurance broker?
A regulated broker compares policies from several insurers, explains the jargon and helps you find suitable, cost-effective cover, instead of you having to approach each health insurance provider one by one. Medical insurance brokers should not charge a fee to find cover for you, and they should be authorised and regulated by the Financial Conduct Authority (FCA).
How can I save money on health insurance?
You can usually reduce premiums by choosing a higher excesses, limiting hospital lists, adding a six-week wait option or tailoring outpatient cover, although this can also limit when and where you can be treated. Health insurance premiums start from £20 per month, and the average cost of health insurance in the UK is £74.35 for an individual policy.
What should I check before I buy health insurance?
Always check the underwriting terms, any exclusions, the level of hospital cover, how claims affect your no claims discount and whether the company you are dealing with appears on the Financial Conduct Authority register. Make sure that you read any policy documentation very carefully and ask your broker or the insurer if you have any questions.
Key Points: Health insurance glossary 2026 for UK private medical cover.
- This glossary covers the most common private health insurance terms you will see on UK quotes, brochures and policy documents.
- Understanding terms like ‘excess’, ‘exclusions’, ‘moratorium’ and ‘underwriting’ can help you avoid paying for cover you cannot use.
- Brokers and intermediaries can compare multiple insurers, but they must be authorised by the Financial Conduct Authority.
- Knowing the differences between in patients, day patients and outpatients helps you judge if a policy matches how you actually use healthcare.
- Options such as reduced hospital cover, six week wait and no claims discount protection can lower or stabilise costs over time.
General health insurance and policy terms
Advice
In a health insurance context, advice usually means any consultation you have had about symptoms or abnormalities with a GP, therapist or healthcare specialist. If you have already received advice about a symptom, an insurer may treat this as a sign of a pre-existing condition, which can affect what they will cover.
Acute conditions
An acute condition is an illness, disease or injury that is expected to respond to treatment and return you to full health. Most health insurance is designed to cover acute conditions, such as a broken bone, appendicitis or a sudden hernia, rather than long-term ongoing problems.
Chronic conditions
A chronic condition is one that is likely to continue indefinitely, needs ongoing treatment or monitoring, has no known cure, or may come back again. Examples include diabetes, asthma and many types of heart disease. health insurance often has limited cover for the day-to-day management of chronic conditions, so it is important to check how your policy treats these.
Annual renewal date
This is the anniversary of the day your health insurance policy started. On your renewal date the insurer can review your premium and sometimes your terms, and a broker can recheck the wider market to see if there is a better value policy for your needs and budget.
Cancer cover
One of the most important and the most used elements of any private health insurance policy is the cancer cover that it provides to policyholders. Cancer cover typically provides you with diagnostic testing, cancer treatments (including those not available on the NHS), cancer care, and cancer support for post-treatment and recovery.
Policy
Your policy is simply the legal contract between you and the insurer. It sets out what is covered, what is excluded, how much you pay, and the rules for making a claim. Always read your policy schedule and full policy wording, not just the headlines in the brochure.
Premium
The premium is the amount you pay the insurer, usually monthly or annually, to keep your cover in force. Premiums are based on factors such as your age, location, level of cover, underwriting type, claims history and any options like reduced hospital lists or a six-week wait.
Smokers
Smokers typically pay a higher premium for health insurance than non-smokers because of the health risks linked with smoking nicotine, vaping, and using nicotine replacement products. A smoker is defined by insurance underwriters as someone who has smoked, vaped, or used a nicotine replacement product in the past 12 months, including patches, pipes, nicotine free vapes.
Certificate of insurance
This certificate, issued by your health insurer, confirms the key details of your cover, including who is insured, dates of birth, the start date, the level of cover, your address and how and when you pay your premium. It acts as a quick reference summary of your policy.
Conditions, treatment types and care settings
Day patients
A day patient is admitted to hospital or a treatment unit for surgery or procedures and monitored for recovery but does not stay overnight. Many modern operations, such as keyhole surgery, are carried out on a day patient basis.
In patients
An inpatient occupies a hospital bed for at least one night while receiving treatment. Health insurance usually distinguishes between inpatient and daypatient cover and may set separate limits for outpatient treatment.
Outpatients
An outpatient attends a hospital, clinic or consultant’s rooms for consultations, tests or minor procedures and goes home the same day, without being admitted as a day patient or inpatient. Outpatient cover is a key part of many health insurance policies and can be full, limited or excluded.
Diagnostic tests
Diagnostic tests include scans, blood tests and X rays used to find the cause of symptoms. Common examples in health insurance are CT scans, MRI scans and ultrasound. Policies may have different rules for diagnostic tests, so it is worth checking whether they are fully covered or capped.
CT scans
A CT scan uses a rotating X-ray beam and computer processing to produce detailed cross-sectional images of the inside of the body. These scans are frequently used to investigate injuries, internal bleeding or suspected tumours.
MRI scan
An MRI scan uses strong magnets and radio waves to create detailed images of organs and soft tissues. MRI is often used to investigate joint problems, brain and spinal issues and some types of cancer.
Palliative care
Palliative care focuses on easing symptoms, pain and stress for people with serious illness, rather than trying to cure the condition. Health insurance may limit or exclude some palliative care, as long-term symptom management can fall under NHS and social care rather than acute treatment.
Curative intent
When treatment is given with curative intent, the expectation is that it will return the patient to the health they had before diagnosis and that they will be alive and free of the disease five years after treatment starts. Some cancer cover options in health insurance refer to curative or non-curative intent to set limits on what they will fund.
Remission and remission of cancer
Remission is when a disease is suppressed, controlled or no longer causing symptoms. Remission of cancer means there is no clear evidence of the disease, or it is under control, and the patient appears symptom-free and cured. Insurers use these definitions to decide whether treatment is classed as active or follow-up.
People and professionals involved in health insurance
General practitioner (GP)
A GP is a doctor on the General Medical Council’s GP register with a licence to practise. For non-emergencies, your GP is normally your first point of contact about symptoms and is often the person who refers you for private treatment.
Specialist
A specialist is a doctor with advanced training in a specific area of medicine, such as a consultant surgeon, consultant physician or consultant anaesthetist. To be covered by health insurance, specialists usually need to hold full registration under the relevant medical act and meet the insurer’s recognition criteria.
Practitioner
In policy wording, a practitioner tends to mean a qualified professional providing medical or therapeutic services, from dietitians and nurses through to psychologists, psychotherapists and speech therapists. When you receive treatment in a private hospital, the fees for recognised practitioners are often included in the hospital charges.
Physiotherapist
A physiotherapist is a medical professional who treats illness and injury using movement, manual therapy, exercise and education and is registered under the relevant professional act. Many health insurance policies include a set number of physiotherapy sessions per year.
Therapist
‘Therapist’ is a broad term that can cover osteopaths, chiropractors and other hands-on therapists, usually those registered under a medical or allied health act. Cover for therapies such as osteopathy and chiropractic is often optional and subject to annual limits.
Acupuncturist
An acupuncturist is a practitioner who specialises in acupuncture and is either a medically qualified professional or a member of an approved body such as the British Acupuncture Council. Some health insurance policies cover acupuncture when it is provided by recognised practitioners.
Homoeopath
A homoeopath specialises in homoeopathy and may be a doctor or other healthcare professional with additional homoeopathic training or a practitioner who holds full membership of an organisation such as the Faculty of Homoeopathy. Only some insurers provide limited cover for homoeopathy, and it is usually only when it is delivered by recognised practitioners.
Brokers, intermediaries and regulation
Broker
A private health insurance broker works on your behalf to find a suitable policy from a range of insurers. They look at your needs and budget, compare the market, explain the options and help you apply, which can save you time and money compared with approaching each insurer yourself.
Intermediary
‘Intermediary’ is a general term for an insurance broker or agent who arranges policies for customers. Because intermediaries usually deal with multiple insurance companies, they can search across the market for affordable products that match your requirements.
Financial Conduct Authority (FCA) and authorisation
The Financial Conduct Authority (FCA) regulates insurance brokers and many insurers in the UK. Genuine health insurance intermediaries will display their FCA registration number, and you can look them up on the official Financial Services Register to check they are authorised to advise on and arrange insurance.
Insurance Premium Tax (IPT)
IPT is a UK government tax on most insurance premiums. For private medical insurance the standard rate, which is currently 12 per cent, is included in the premiums you are quoted, so you do not have to add it on separately.
Underwriting, exclusions and pre-existing conditions
Underwriting
Underwriting is how insurers assess the risk of covering you. They look at your medical history and other factors to decide what they will cover, what they will exclude and what premium to charge. In health insurance you will usually see three main types of underwriting: full medical underwriting, moratorium and switch terms.
Full medical underwriting
With full medical underwriting you disclose your complete medical history at the time you apply. The insurer may then exclude cover for some pre-existing conditions and anything related to them, but you have clarity from day one about what is and is not covered.
Moratorium underwriting
A moratorium lets you take out insurance without giving full medical details up front. In return, the insurer will not initially cover any conditions you have had symptoms of, treatment for, medication for or advice about in the five years before the policy starts. If those issues do not come back and require medication or treatment during a set period, often the first two continuous years of cover, you may regain cover for them. Exact terms vary from insurer to insurer.
Switch terms
Switches, or continuing personal medical exclusions terms, apply when you move from one insurer to another without a break in cover. The new insurer usually agrees to cover any conditions that arose since you took out your original policy and to carry across your existing personal medical exclusions, rather than adding new ones.
Pre-existing conditions
A pre-existing condition is any health issue you have previously experienced, sought medical advice about or received treatment or medication for. How insurers treat pre-existing conditions depends on the underwriting method, and this has a big impact on what they will pay for in the future.
Personal medical exclusions
Personal medical exclusions are specific conditions that an insurer lists as not covered on your policy, usually because of your past medical history. These may be added when you are fully medically underwritten or sometimes when you transfer from another policy.
Specified conditions
A specified condition is a medical issue linked to known risk factors such as diabetes, raised blood pressure or an abnormal prostate specific antigen (PSA) test result. Insurers may apply tighter limits or exclusions around specified conditions because they increase the chance of related claims.
Exclusion
An exclusion is anything that a policy does not cover. Common examples include treatment relating to self-inflicted injuries, drug abuse or cosmetic surgery. Exclusions may be standard, applying to everyone, or personal medical exclusions based on your health history.
How excesses, discounts and options affect cost
Excess
The excess is the amount you agree to pay towards the cost of a claim before the insurer starts to pay. It is usually a fixed sum per policy year or per claim. Choosing a higher voluntary excess can reduce your premium, but make sure it is still affordable if you need treatment.
No claims discount (NCD)
A no-claims discount is a reduction in your premium if you have not made claims in previous policy years, or your claims have stayed within certain limits. Each insurer has its own NCD scale and rules for how claims affect your discount.
No claims discount protection
NCD protection is an option that lets you make one claim each policy year, up to set limits, without losing your no claims discount level. This can help smooth your premiums over time if you need occasional treatment.
Reduced hospital cover
Reduced, or restricted, hospital cover is a money-saving option where you agree to use a smaller network of private hospitals, usually excluding some central London or high-end facilities. In return, the insurer charges a lower premium, so it can be a useful way to cut costs if you are flexible about where you are treated.
Six-week wait option
With a six-week wait, you agree that if the NHS can provide your treatment within six weeks of the date it is needed, you will use the NHS rather than going private. If the NHS cannot treat you within that time, your policy will cover private treatment instead. This option can significantly reduce premiums but does not usually apply to consultations and diagnostic tests.
Other important health insurance terms to know
Open referral
An open referral is when your GP confirms that you need to see a particular type of specialist, but does not name a specific consultant. The insurer then helps you choose from specialists they recognise, which can keep costs under control and ensure your treatment is covered.
Group policy
A group policy is an annual health insurance contract taken out by an employer to cover a number of employees, sometimes with the option to add family members. Group schemes can offer lower premiums per person and simpler underwriting than standalone individual policies.
Rewards and discounts
Most health insurance policies now will typically offer some kind of customer benefits or a rewards scheme, such as the Vitality Healthy Rewards Programme. Check with your insurer or your broker to find out what benefits are available and whether you pay more for any rewards schemes.
Switch
Switching is when you move your existing health insurance to a new provider on terms that recognise your previous cover. Done properly, this can allow you to shop around for better value without losing cover for conditions that arose while you were insured on your old policy.
Treatment
Treatment in health insurance usually covers any medical diagnostics, surgery, procedures or professional services that are needed to relieve or cure an illness or injury, as set out in the policy wording. Insurers will only pay for treatment that is covered, clinically appropriate and carried out by recognised practitioners.
NICE
The National Institute for Health and Care Excellence (NICE) produces evidence-based guidance for the NHS and wider health and care system in England. Some insurers use NICE guidance as a reference when deciding which drugs and treatments they will fund, particularly for cancer and high-cost medicines.
FAQs – Private Health Insurance glossary and terms
Who is this UK health insurance glossary designed for?
This glossary is written for anyone looking at private medical insurance in the UK, including individuals, families and employees on company schemes. If you are comparing policies, reading a quote, talking to a broker or trying to make sense of your policy wording, it gives you plain English meanings for the most common health insurance terms so you can see what you are really being offered.
How can this glossary help me choose the right private medical insurance?
By understanding terms such as acute and chronic conditions, in patients, day patients, out patients, excess and exclusions, you can match a policy to the way you actually use healthcare. The glossary helps you spot where cheaper cover may rely on restricted hospital lists, six week wait options or limited out patient and therapy benefits, so you can decide whether those trade offs are acceptable before you buy.
Why is it important to understand underwriting and pre existing conditions?
Underwriting and pre existing conditions determine what your insurer will pay for in future, so they are just as important as the headline benefits. Knowing the difference between full medical underwriting, moratorium terms and switch terms helps you see how past symptoms, treatments and test results might affect your cover and where personal medical exclusions or specified conditions could leave gaps that you were not expecting.
What should I check with a broker or insurer before I take out cover?
Before you commit, ask the broker or insurer to confirm how your out patient cover works, which hospitals and specialists are included, what level of excess applies and how your no claims discount is calculated. You should also check how chronic and cancer conditions are treated, clarify any exclusions or personal medical exclusions on your certificate of registration and make sure the firm is authorised on the official Financial Services Register.
Does this glossary replace professional advice from a broker or adviser?
No, this glossary is a general guide to common health insurance terms and is not personal or regulated advice. It is designed to help you understand the language used by insurers, so that when you speak to a regulated health insurance broker or adviser you can ask more focused questions, compare options more confidently and make better informed decisions about which policy suits your health needs and budget.
Using this glossary to choose the right health insurance
Understanding these terms gives you a strong starting point when you compare quotes or speak to a broker. You can ask clearer questions about what is and is not covered, spot where cheaper policies are cutting back on benefits and decide which options, such as higher excess or reduced hospital lists, are worth the trade-off for a lower premium.
If you are unsure about any wording, ask the insurer or broker to explain it in plain language and request the full policy document before you commit. Taking a little extra time at the start to understand the jargon can save you money, stress and disputes later on and help you get the most from your private medical insurance when you actually need to use it.
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