What Does Private Health Insurance Actually Cover — and What Does It Exclude?

Private health insurance can be very useful, but only if you understand what it is actually designed to do. Many people buy a policy expecting it to cover almost anything private and medical. In reality, UK private health insurance — also called private medical insurance or PMI — is usually more specific than that.

Most policies are designed to help pay for eligible private diagnosis and treatment of new, acute medical conditions that start after your policy begins. They may cover specialist consultations, diagnostic tests, scans, planned surgery, cancer treatment, physiotherapy or mental health support, depending on the level of cover you choose.

But private health insurance does not cover everything. It usually does not replace the NHS, does not cover most emergency care, does not automatically cover pre-existing conditions, and does not usually pay for long-term routine management of chronic illnesses. It may also exclude cosmetic treatment, normal pregnancy, fertility treatment, routine dental care, routine optical care and some experimental treatments.

This guide explains what private health insurance commonly covers in the UK, what it commonly excludes, where the grey areas are, and what to check before relying on a policy.

Important: This article is general information, not financial advice, medical advice or insurance advice. Private health insurance policies vary widely. Always read your own policy wording, benefit limits, underwriting terms and exclusions before buying or claiming.

First, what is private health insurance designed for?

Private health insurance is usually designed to cover private medical treatment for eligible acute conditions. An acute condition is generally a disease, illness or injury that is likely to respond to treatment and return you to your previous state of health.

For example, a policy may help if you develop a new medical problem after joining and need private diagnosis or treatment. This might include a new knee injury, a hernia, cataracts, suspected cancer symptoms, gallbladder problems, a new skin concern, or a new mental health problem where mental health cover is included.

However, PMI is not usually designed to cover every aspect of healthcare. It is not the same as having a private version of the NHS. It is an insurance contract with rules, limits and exclusions.

If you are still learning the basics of PMI, you may want to read first: What is private medical insurance (PMI) in the UK?

What private health insurance commonly covers

Private health insurance policies vary by insurer and level of cover. A basic policy may cover fewer services, while a comprehensive policy may include wider outpatient diagnostics, cancer care, mental health treatment and therapies.

Common areas of cover may include the following.

Private specialist consultations

Many policies cover consultations with private specialists, also called consultants. These may include:

orthopaedic consultants;
cardiologists;
dermatologists;
gastroenterologists;
gynaecologists;
urologists;
ENT specialists;
ophthalmologists;
neurologists;
psychiatrists, if mental health cover is included.

This is one of the main reasons people value private health insurance. A private specialist appointment may be available faster than a routine NHS outpatient appointment.

However, not every policy covers unlimited consultations. Some have outpatient limits, require a GP referral, or only cover consultants approved by the insurer. Others use a guided consultant list, where you must choose from specialists suggested by the insurer.

Diagnostic tests and scans

Diagnostic cover is one of the most important parts of a useful PMI policy. It may include:

blood tests;
X-rays;
ultrasound scans;
MRI scans;
CT scans;
ECG tests;
echocardiograms;
endoscopy or colonoscopy;
biopsies;
other specialist investigations.

This cover matters because many health problems cannot be treated until they are properly diagnosed. If you buy insurance mainly because you want quicker answers, outpatient and diagnostic cover should be one of the first things you check.

Some cheaper policies cover hospital treatment but limit outpatient tests and scans. That can leave you paying privately for the diagnostic stage before the insurer pays for treatment.

Private hospital treatment

If a claim is approved, PMI may cover private hospital treatment such as:

day-case procedures;
planned surgery;
hospital accommodation;
operating theatre fees;
nursing care;
consultant surgeon fees;
anaesthetist fees;
medicines used during hospital treatment;
some post-operative care.

Examples might include cataract surgery, hernia repair, gallbladder surgery, hip or knee replacement, some gynaecological procedures, some ENT operations or certain orthopaedic procedures.

But cover depends on your policy, hospital list, authorisation and whether the condition is eligible. You should always contact the insurer before booking private hospital treatment.

Day-patient and inpatient treatment

Private health insurance often separates treatment into outpatient, day-patient and inpatient care.

Outpatient care means you are not admitted to hospital. This includes consultations, tests and scans.
Day-patient care means you are admitted for treatment but go home the same day.
Inpatient care means you are admitted to hospital and stay overnight.

Basic policies may focus heavily on day-patient and inpatient treatment, while more comprehensive policies may also provide stronger outpatient cover.

Cancer diagnosis and treatment

Cancer cover is one of the most important parts of many private health insurance policies, but it varies significantly.

Depending on the policy, cancer cover may include:

specialist consultations;
diagnostic tests and scans;
biopsies;
surgery;
chemotherapy;
radiotherapy;
targeted therapies;
immunotherapy;
follow-up scans;
monitoring after treatment;
palliative care.

Some people buy PMI mainly for cancer cover. If that is your priority, read the cancer section of the policy very carefully. Look for limits on drugs, hospital access, follow-up care and treatment duration. Do not rely only on phrases such as “comprehensive cancer cover” without checking what they mean.

Mental health treatment

Some private health insurance policies include mental health cover, while others offer it as an add-on or exclude it from basic plans.

Mental health cover may include:

therapy or counselling;
CBT;
psychology appointments;
psychiatry appointments;
mental health assessments;
inpatient mental health treatment, in some policies.

Limits are common. For example, a policy may cover a set number of therapy sessions per year, or it may exclude long-term recurring mental health conditions. If mental health support is important to you, check the wording before buying.

For more information on support options, see Mental health support options in the UK and Online therapy and counselling in the UK.

Physiotherapy and musculoskeletal treatment

Many policies include some cover for physiotherapy and musculoskeletal problems, such as back pain, knee pain, shoulder injuries and sports injuries.

This may include:

physiotherapy assessment;
treatment sessions;
direct access without a GP referral;
orthopaedic consultations;
diagnostic scans if needed;
surgery where eligible.

However, limits may apply. Some policies cover only a small number of sessions. Others require you to use an approved physiotherapy network. Some policies may treat recurring back or joint problems as pre-existing if symptoms existed before cover started.

Private GP or digital GP access

Some health insurance policies include access to a digital GP, telephone GP or private GP helpline. This can be useful for convenience, advice, prescriptions or referral letters.

But private GP access is not always the core purpose of PMI. Standard private health insurance usually focuses more on specialist diagnosis and treatment than routine GP care. If your main concern is same-day GP appointments, a private GP subscription may be more relevant than full PMI.

For more on this, see Private GP services in the UK: costs and what to expect.

Nursing care and home care after treatment

Some policies may cover limited nursing care after eligible treatment, such as home nursing, private ambulance transfer or recovery support. This is usually subject to strict rules and limits.

Do not assume a PMI policy will cover long-term home care, social care or help with daily living. Those are usually separate issues and may fall under NHS, local authority, self-funded care or separate care arrangements.

Parent accommodation for children

Some family policies include accommodation for a parent if a child is admitted for eligible private hospital treatment. This can be valuable, but the rules vary by insurer.

Additional benefits and helplines

Some policies include extras such as:

24/7 health helplines;
nurse advice lines;
second medical opinion services;
wellbeing apps;
discounted health checks;
virtual physiotherapy;
cancer support services;
mental health triage.

These can be useful, but they should not distract from the main policy wording. A helpful app or helpline does not compensate for weak outpatient, cancer or hospital cover if those are your priorities.

What private health insurance commonly excludes

Exclusions are just as important as benefits. A policy is only useful if it covers the situation you actually need help with.

Emergency treatment and A&E care

Private health insurance is usually not designed to cover emergency care. If you have chest pain, stroke symptoms, severe breathing problems, major injury, heavy bleeding, sepsis symptoms or another urgent medical emergency, you should use NHS emergency services.

Private hospitals in the UK are generally not set up like NHS A&E departments. They usually focus on planned care, diagnostics and elective procedures.

For urgent symptom guidance, see Chest pain: when to worry and Stroke symptoms and TIA.

Pre-existing conditions

Most individual PMI policies do not automatically cover pre-existing conditions. This means conditions, symptoms, injuries, investigations or related problems that existed before your policy started may be excluded.

A pre-existing condition might include:

a diagnosed illness you already had;
symptoms you had before joining;
a condition you were waiting to have investigated;
medication you were already taking;
a recurring injury or pain problem;
previous surgery or treatment in the same body area.

The diagnosis date is not the only issue. If symptoms existed before the policy began, the insurer may still treat the condition as pre-existing.

For a full explanation, see Pre-existing conditions and health insurance: what you need to know.

Chronic condition management

Private health insurance usually does not cover routine long-term management of chronic conditions. A chronic condition is an ongoing, recurring or long-term illness that needs monitoring, maintenance treatment or repeated care.

Examples may include:

diabetes;
asthma;
high blood pressure;
epilepsy;
arthritis;
COPD;
inflammatory bowel disease;
chronic kidney disease;
some long-term mental health conditions.

A policy may sometimes cover an acute flare-up or investigation, depending on the wording, but it may not cover indefinite follow-up, routine blood tests, repeat prescriptions or long-term monitoring.

Normal pregnancy and childbirth

Normal pregnancy and childbirth are usually excluded from standard private health insurance. Some complications may be covered under certain policies, but this depends on the wording.

If you are planning a pregnancy, do not assume PMI will pay for antenatal care, birth costs, private midwifery, scans or routine maternity care. Check the maternity and pregnancy exclusions carefully.

Fertility treatment

Fertility treatment and IVF are commonly excluded or heavily restricted. Some policies may cover investigations into infertility, but not the treatment itself. Others may exclude both.

If fertility is a priority, ask very specific questions about:

fertility testing;
IVF;
IUI;
egg freezing;
donor treatment;
medicines;
pregnancy after fertility treatment.

Cosmetic treatment

Cosmetic surgery or treatment purely to improve appearance is usually excluded. This may include procedures such as cosmetic breast surgery, facelifts, liposuction, cosmetic eyelid surgery or non-surgical aesthetic treatments.

Reconstructive treatment after cancer, injury or surgery may be treated differently, but it depends on the policy. Always check before assuming a procedure is covered.

Routine dental care

Standard PMI usually does not cover routine dental treatment, such as check-ups, fillings, hygienist appointments, crowns, dentures or dental implants.

Some policies offer dental add-ons, emergency dental benefits or cash-plan-style contributions. These are not the same as full dental insurance and often have limits.

For dental costs, see Private dentist prices in the UK: what common treatments cost.

Routine optical care

Routine eye tests, glasses and contact lenses are usually not included in standard PMI. Some policies offer optical benefits as an add-on or through a health cash plan.

Treatment for eye conditions may be different. For example, cataract surgery may be covered if the condition is eligible and the policy includes it. But routine eyesight correction, glasses or laser eye surgery for convenience may not be covered.

Experimental or unproven treatment

Insurers may exclude treatments they consider experimental, unproven, not medically necessary or not established in UK clinical practice.

This can be relevant for some newer therapies, regenerative medicine, overseas treatments, non-standard drug use or treatments not supported by recognised clinical evidence.

Overseas treatment

UK private health insurance usually covers treatment in the UK, unless the policy specifically includes international cover. It is not the same as travel insurance or international health insurance.

If you want treatment abroad, check whether your policy covers overseas care. Most standard UK PMI policies will not automatically pay for surgery in another country.

Routine health screening

Routine health checks, screening packages and general wellness tests are not always covered. Some policies include discounted health assessments or specific screening benefits, but many do not pay for broad private health screening unless medically indicated.

This matters because many private clinics offer screening packages that are paid for directly by patients. These may not be reimbursed by your insurer.

Weight loss treatment

Weight loss medication, obesity treatment, bariatric surgery and lifestyle programmes may be excluded or restricted. Some insurers are beginning to offer selected weight management benefits or discounted services, but this varies and should not be assumed.

If weight loss treatment is a priority, check whether the policy covers weight-related conditions, medication, surgery, dietitian support or only complications.

For related information, see Weight loss injections in the UK and Weight loss surgery in the UK.

Menopause, ageing and lifestyle-related treatment

Some policies exclude treatment related to natural ageing, menopause, puberty, contraception or lifestyle concerns. Others may cover investigations for symptoms but not ongoing management.

For example, a policy might cover tests to rule out a serious condition, but not long-term hormone management or treatment considered routine or lifestyle-related. The wording matters.

Learning difficulties and neurodevelopmental conditions

Many policies exclude or limit assessment and treatment for learning difficulties, developmental conditions, behavioural conditions, autism or ADHD. Some policies may offer limited mental health or neurodevelopmental benefits, but many do not.

If ADHD assessment or ongoing treatment is important to you, check the wording carefully. For related information, see How to get a private ADHD assessment in the UK.

Addiction and substance misuse

Treatment for alcohol dependency, drug dependency or addiction may be excluded or limited. Some policies may cover certain mental health pathways but still exclude addiction treatment. This is an area where policy wording varies.

Self-inflicted injury and high-risk activities

Policies may exclude injuries linked to self-inflicted harm, dangerous sports, professional sport, war, civil unrest or high-risk activities. The exact wording varies between insurers.

Grey areas: where cover depends heavily on the wording

Some areas are not simply “covered” or “excluded”. They depend on the policy, medical evidence and claim circumstances.

Chronic conditions with acute flare-ups

If you have a chronic condition, routine management may be excluded. But if you have a sudden acute flare-up, the insurer may consider covering some treatment, depending on the policy.

For example, a policy may not cover routine arthritis monitoring, but it may consider a new injury or investigation if it is not simply ongoing chronic management. You need to ask the insurer before assuming.

Investigations that reveal an excluded condition

Sometimes a policy may cover investigations for new symptoms, but once a chronic or pre-existing condition is diagnosed, ongoing treatment may be excluded.

This can feel confusing. The insurer may pay for the diagnostic stage but not long-term management afterwards.

Mental health relapse

If someone has a past mental health condition and later needs treatment again, the insurer may consider whether it is pre-existing, recurring or a new episode. The answer depends on underwriting, symptom-free periods and policy wording.

Back, knee and shoulder problems

Musculoskeletal claims are common, and they often involve questions about previous symptoms. If you had back pain before joining, a later slipped disc claim may be disputed. If you had an old knee injury, a new knee claim may require medical evidence to show whether it is related.

Cancer follow-up and monitoring

Some policies are strong on initial cancer treatment but have limits around long-term follow-up, monitoring, palliative care or drugs. Others are broader. Cancer cover should always be checked in detail.

What are benefit limits?

Benefit limits are caps on what the insurer will pay. These can apply even when a condition is covered.

Common benefit limits include:

a maximum amount for outpatient consultations;
a maximum number of physiotherapy sessions;
limits on mental health treatment;
limits on diagnostic tests;
limits on home nursing;
limits on parent accommodation;
drug or treatment limits;
hospital list restrictions.

A policy can technically “cover” something but only up to a limited amount. Always check the number, not just the heading.

What is an excess?

An excess is the amount you pay towards an eligible claim. For example, if your policy has a £250 excess, you may need to pay the first £250 before the insurer pays the rest.

Choosing a higher excess usually reduces the monthly premium, but it also means you pay more when you claim.

Check whether the excess applies:

once per policy year;
once per claim;
once per person on a family policy;
to outpatient care;
to hospital treatment only.

What is a hospital list?

A hospital list is the group of private hospitals and clinics included in your policy. A restricted hospital list may make the policy cheaper, while a wider hospital list usually costs more.

Before buying, check:

which hospitals near you are included;
whether major local private hospitals are covered;
whether London hospitals are included;
whether specialist cancer centres are included;
whether the list can change at renewal;
whether you must use an approved provider network.

What are shortfalls?

A shortfall happens when a private consultant, anaesthetist or hospital charges more than the insurer agrees to pay. You may then need to pay the difference yourself.

To reduce the risk, ask before treatment:

Is the consultant recognised by my insurer?
Does the consultant charge within insurer limits?
Are anaesthetist fees fully covered?
Are follow-up appointments included?
Will I have any out-of-pocket costs?

Does private health insurance cover NHS treatment?

Private health insurance usually pays for eligible private treatment, not NHS treatment. NHS care remains free at the point of use for eligible patients and is not normally billed to your insurer.

Some policies may offer an NHS cash benefit if you choose to receive eligible treatment on the NHS instead of privately, but this is a policy-specific extra and may have limits.

Can you use NHS and private care together?

Yes, many people use both. You might use the NHS for your GP, emergency care and chronic condition management, while using insurance for eligible private consultations, scans or surgery.

However, NHS and private care usually need to be kept clearly separate. Paying privately for one part of care does not mean the NHS must automatically fund the rest of a private pathway.

For a broader comparison, see NHS vs private healthcare: when does insurance actually make sense?.

What does a basic policy usually cover?

A basic private health insurance policy may focus on:

inpatient treatment;
day-patient treatment;
planned surgery;
limited hospital access;
possibly limited cancer cover;
possibly limited outpatient cover.

Basic policies can be useful if you mainly want protection against large private hospital bills. But they may be less useful if your main goal is fast diagnosis, because outpatient consultations and scans may be limited.

What does a comprehensive policy usually cover?

A more comprehensive policy may include:

broader outpatient consultations;
diagnostic scans and tests;
stronger cancer cover;
mental health support;
physiotherapy and therapies;
a wider hospital list;
more consultant choice;
lower excess options;
additional support services.

Comprehensive cover usually costs more, but it may be better value if it covers the areas you are most likely to use.

What should you check before buying?

Before choosing a policy, ask these questions:

Does it cover outpatient consultations?
Does it cover diagnostic scans?
Is cancer cover comprehensive or limited?
Is mental health included?
Is physiotherapy included?
Which hospitals can I use?
Can I choose my consultant?
What excess applies?
Are there annual benefit limits?
How are pre-existing conditions handled?
Does it use full medical underwriting or moratorium underwriting?
Are chronic conditions excluded?
Do I need GP referral before claiming?
Do I need pre-authorisation before booking treatment?
Could I face shortfalls?
What happens at renewal?

For a full buyer’s checklist, see How to choose private health insurance in the UK.

Why claims get refused

Private health insurance claims may be refused for several reasons. Common examples include:

the condition is pre-existing;
the condition is chronic and only routine management is needed;
the treatment is excluded;
the policy does not include outpatient cover;
the hospital or consultant is not approved;
the treatment was not pre-authorised;
the treatment is considered experimental;
the benefit limit has been reached;
medical information was not disclosed correctly;
the insurer does not consider the treatment medically necessary.

If a claim is refused, ask the insurer for the decision in writing and check the exact policy wording. If you disagree, use the insurer’s complaints process. If the complaint is not resolved, you may be able to take it to the Financial Ombudsman Service.

Practical examples of what may or may not be covered

Example 1: new knee injury after joining

You take out a policy and six months later injure your knee while exercising. You have no previous knee symptoms. Your GP refers you to an orthopaedic consultant.

This may be covered if your policy includes outpatient consultations, scans and treatment, and the insurer authorises the claim.

Example 2: knee pain before joining

You had knee pain for several months, then bought insurance. After joining, an MRI shows arthritis or a meniscus tear.

The insurer may treat this as pre-existing because symptoms started before the policy began.

Example 3: suspected cancer symptoms after joining

You develop new symptoms after your policy starts and your GP refers you urgently. Your policy includes strong cancer cover.

Private consultations, tests and treatment may be covered if authorised and within policy terms.

Example 4: diabetes monitoring

You have type 2 diabetes and want private appointments, blood tests and medication reviews every few months.

Routine chronic disease management is usually not covered by standard PMI. The NHS is likely to remain the main route.

Example 5: private GP appointment

You want a same-day GP appointment for a minor illness.

This may be covered only if your policy includes digital GP or private GP access. Otherwise, you may need to self-pay or use your NHS GP.

Example 6: cosmetic eyelid surgery

You want eyelid surgery for appearance reasons.

This is likely to be excluded as cosmetic treatment. If there is a medical reason affecting vision, the insurer may assess it differently, but cover is not guaranteed.

Private health insurance vs health cash plans

Some people confuse PMI with health cash plans. They are different products.

A health cash plan may contribute towards everyday costs such as:

dental check-ups;
eye tests;
glasses;
physiotherapy;
health screening;
chiropody;
some consultations.

Private health insurance is usually designed for larger eligible private medical costs such as consultations, diagnostics, hospital treatment and surgery.

If you mainly want help with dental and optical costs, a cash plan may be more relevant. If you want protection against private hospital bills, PMI is more relevant.

Private health insurance vs critical illness cover

Private health insurance and critical illness cover are also different.

Private health insurance pays for eligible private medical treatment. Critical illness cover usually pays a lump sum if you are diagnosed with a specified serious illness covered by the policy.

PMI helps with treatment access. Critical illness cover helps with financial impact, such as mortgage payments, time off work or household costs. Some people have both, but they serve different purposes.

Private health insurance vs income protection

Income protection is different again. It pays a regular income if you cannot work because of illness or injury, subject to policy terms.

Private health insurance may help you access treatment. Income protection helps replace income if you cannot work. For self-employed people, both types of cover may be worth understanding.

Final thoughts: what does private health insurance really cover?

Private health insurance can cover a lot, but it does not cover everything. It is usually most useful for eligible new acute conditions where you want faster private diagnosis, specialist care, planned treatment or hospital access.

It may cover consultations, scans, surgery, cancer treatment, physiotherapy, mental health support and private hospital care, depending on your policy.

It commonly excludes emergency care, pre-existing conditions, chronic condition management, normal pregnancy, cosmetic treatment, fertility treatment, routine dental care, routine optical care and experimental treatment.

The most important lesson is simple: do not judge a policy by the headline benefits alone. Check outpatient cover, cancer wording, mental health limits, hospital lists, excesses, benefit caps, pre-existing condition rules and the claims process.

A good policy is not just one that looks affordable. It is one that covers the situations you are genuinely worried about, excludes things you understand, and remains affordable long term.

FAQ: What private health insurance covers and excludes

What does private health insurance usually cover?

It may cover eligible private consultations, diagnostic tests, scans, hospital treatment, planned surgery, cancer treatment, physiotherapy and mental health support, depending on the policy.

Does private health insurance cover everything?

No. Every policy has exclusions, limits and conditions. PMI is not a private version of the NHS and does not cover every medical problem.

Does private health insurance cover pre-existing conditions?

Usually not automatically. Most individual policies exclude conditions, symptoms or investigations that existed before the policy started.

Does private health insurance cover chronic conditions?

Routine long-term management of chronic conditions is usually excluded. Some policies may cover acute flare-ups or investigations, depending on the wording.

Does private health insurance cover emergency care?

Usually not. Emergency care, A&E, ambulance care and intensive care are mainly NHS services. Use NHS emergency services for urgent or life-threatening symptoms.

Does private health insurance cover cancer?

Many policies include cancer cover, but the level varies. Check diagnosis, surgery, chemotherapy, radiotherapy, advanced drugs, follow-up and palliative care limits.

Does private health insurance cover mental health?

Some policies include mental health cover, some offer it as an add-on, and some exclude or limit it. Always check the policy wording.

Does private health insurance cover scans?

It may cover MRI, CT, ultrasound and other scans if diagnostic cover is included and the claim is authorised. Cheaper policies may limit outpatient diagnostics.

Does private health insurance cover GP appointments?

Some policies include digital GP or private GP services, but standard PMI usually focuses on specialist care and treatment rather than routine GP access.

Does private health insurance cover dental treatment?

Routine dental treatment is usually not included in standard PMI. Some policies offer dental add-ons or cash-plan-style benefits.

Does private health insurance cover eye care?

Routine eye tests, glasses and contact lenses are usually not covered. Treatment for eligible eye conditions, such as cataracts, may be covered depending on the policy.

Does private health insurance cover pregnancy?

Normal pregnancy and childbirth are usually excluded. Some complications may be covered under certain policies, but you should check the wording carefully.

Does private health insurance cover IVF?

Fertility treatment and IVF are commonly excluded or heavily restricted. Some policies may cover investigations but not treatment.

Does private health insurance cover cosmetic surgery?

Cosmetic treatment purely to improve appearance is usually excluded. Reconstructive treatment for medical reasons may be assessed differently.

Does private health insurance cover treatment abroad?

Standard UK private health insurance usually does not cover overseas treatment unless international cover is specifically included.

Can an insurer refuse a claim?

Yes. Claims may be refused if the condition is excluded, pre-existing, chronic, not authorised, outside benefit limits, or treated by a non-approved provider.

What should I check before buying PMI?

Check outpatient cover, diagnostic scans, cancer cover, mental health, therapies, hospital list, consultant choice, excess, benefit limits, pre-existing condition rules and exclusions.