Private medical insurance is not a single product but a set of building blocks you can combine. One of the most important choices is how much outpatient cover to include, and what overall level of cover to buy. This guide explains outpatient cover and the levels of private medical insurance, so you can tailor a policy to your needs and budget.

Cover is built in layers

Private medical insurance ranges from basic to comprehensive, and much of the difference comes down to which elements you include. At the core is inpatient and day-patient treatment. Around that, you can add outpatient cover, mental health cover, therapies and other extras. Because you can mix and match, the price varies widely, so understanding the layers helps you build a policy that covers what matters to you without paying for things you do not need.

Inpatient and day-patient cover

The core of any PMI policy is inpatient and day-patient cover. Inpatient treatment is where you are admitted and stay overnight, while day-patient treatment involves a hospital admission without an overnight stay. This core covers things like surgery, hospital accommodation and specialist fees, and it is the part that protects you against the largest costs. Even basic policies include this, because it is what private medical insurance is fundamentally for.

What outpatient cover is

Outpatient cover pays for treatment, consultations and tests where you are not admitted to hospital, such as seeing a specialist, having diagnostic scans, or blood tests. This matters because much of the early part of a medical journey, the diagnosis, happens as an outpatient. Without outpatient cover, you might have to fund consultations and tests yourself before your inpatient cover kicks in, which is why outpatient cover is a key decision.

Why outpatient cover matters

Outpatient cover is often where the value of a comprehensive policy shows. Getting a quick private consultation and fast diagnostic tests can be the main reason people value PMI, since it gets you answers and a treatment plan quickly. Basic policies may limit or exclude outpatient cover to keep the price down, while comprehensive policies include generous outpatient limits. Deciding how much outpatient cover you want is central to choosing the right level.

Optional extras and modules

Beyond the core and outpatient cover, you can usually add modules to suit your needs. Common extras include mental health cover, physiotherapy and other therapies, and sometimes dental and optical cover, though dental is often a separate product, as our wider guides explain. Adding modules increases the premium, so it is worth choosing the ones that genuinely matter to you and leaving out those you are unlikely to use, to keep the cost in check.

Using your excess to control cost

Your excess, the amount you pay towards a claim, is a powerful lever on price. Choosing a higher excess lowers your premium, in exchange for paying more when you claim. As with other insurance, set it at a level you could comfortably afford, so that the cover remains useful when you need it. A sensible excess is one of the simplest ways to make a comprehensive policy more affordable, as our guide to why premiums rise notes.

Hospital lists

The range of hospitals you can use also affects the price. Policies with access to a wider list of hospitals, including more expensive ones, cost more, while restricting yourself to a smaller list of hospitals lowers the premium. If you are happy to be treated at a defined set of hospitals, choosing a narrower list is an effective way to reduce the cost without giving up the core benefits of private treatment.

The six-week wait option

One useful way to cut the cost is a six-week wait option. With this, you agree to use the NHS if it can treat you within six weeks, and only go private if the NHS wait would be longer. Because you would not claim privately for treatments the NHS can do quickly, the premium is lower. It can be a sensible middle ground for people who want private cover mainly for the longer NHS waits.

Choosing the right level

The right level of cover balances what you want covered against what you can afford. Think about whether outpatient diagnosis matters to you, whether you want mental health or therapy cover, how big an excess you could manage, and which hospitals you would want. Building the policy around your real priorities, rather than defaulting to the cheapest or the most comprehensive, gives you cover that fits, as our guide to is it worth it helps you judge.

Diagnostic tests and scans

A major reason outpatient cover is valued is access to diagnostic tests and scans, such as MRI and CT scans, without a long wait. Getting a quick scan and a fast specialist opinion can be the difference between weeks and months in finding out what is wrong. Policies vary in how much diagnostic cover they include and whether it sits within an outpatient limit, so if speedy diagnosis is your priority, look closely at how tests and scans are covered.

Mental health cover

Mental health cover is an increasingly important consideration, and policies differ widely in what they offer. Some include cover for conditions like anxiety and depression, with access to therapy and, where needed, inpatient treatment, while others limit or exclude it. If mental health support matters to you, check whether it is included as standard, available as an add-on, or excluded, since this is an area where the level of cover can vary considerably between policies.

Reviewing your level over time

The right level of cover is not fixed for life. As your circumstances, health priorities and budget change, the cover that suited you a few years ago may no longer be the best fit. Reviewing your policy at renewal, and adjusting the modules, excess and hospital list, helps keep it aligned with what you actually need and can afford, especially as premiums rise, as our guide to why premiums rise explains.

The advantage of building cover in layers is that you can match it precisely to what matters to you, paying for the protection you want and leaving out what you do not. A little thought at the outset produces a policy that fits both your needs and your budget, rather than a generic plan that does neither well.

In short

Private medical insurance is built in layers: core inpatient and day-patient cover, plus optional outpatient cover, mental health, therapies and other modules. Outpatient cover matters because diagnosis often happens without a hospital stay. You can control the cost through your excess, a restricted hospital list, and options like the six-week wait, where you go private only if the NHS would take longer. Tailor the level to your priorities and budget.

Where to get help and next steps

Read private medical insurance explained for the basics, manage rising costs with why premiums rise, and weigh the value in is private health insurance worth it. This is general information, not medical or financial advice.