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Mixing Private and NHS Treatment

HealthEnglandLast reviewed: 1 April 20256 min

You can use both NHS and private healthcare, but the rules about mixing them within a single episode of care are complex. Understanding these rules helps you make informed choices without inadvertently losing your NHS entitlements.

Important

This is general guidance only and does not constitute medical or legal advice. NHS rules and charges change regularly — always verify current information on NHS.UK or with your GP practice before acting.

Key points

  • The NHS must treat private and NHS parts of your care as separate episodes — you cannot be charged for NHS care that runs alongside private care you are paying for.
  • NHS "top-up" payments for more expensive drugs or treatments not approved for NHS use are permitted since 2009 guidance, but rules vary.
  • Using private diagnostics (e.g., a private scan) does not affect your right to subsequent NHS treatment.
  • You do not lose your NHS entitlement by seeing a private specialist — you can return to NHS care at any time.
  • Always get written confirmation of what is NHS-funded and what is private before starting treatment.

The Separate Episode Rule

The fundamental principle is that NHS treatment and private treatment should be provided in separate episodes of care. An NHS trust cannot charge you for NHS care simply because you are also paying for private care at the same time or in the same facility.

In practice this means:

  • If you choose to pay for a private room ("amenity bed") in an NHS hospital, the clinical care (operations, drugs, nursing) must still be provided free on the NHS.
  • If you are receiving NHS treatment for one condition and private treatment for a different condition simultaneously, these are separate episodes and neither affects the other.
  • A hospital cannot make NHS treatment conditional on you accepting private services.

If you believe you have been charged for NHS care you were entitled to receive free, complain to PALS or make a formal complaint, and contact NHS England.

NHS Top-Up Payments

Since 2009, NHS England guidance has permitted patients to pay privately for treatments or drugs that the NHS does not fund (for example, a drug not approved by NICE), while still receiving their NHS care. These are sometimes called "top-up payments" or "co-payments."

Key rules:

  • The additional private treatment must be clearly separated from NHS care and delivered in a distinct private episode where possible.
  • NHS staff may administer the privately funded drug in the same clinical setting, but this must be clearly documented and contracted separately.
  • The NHS cannot withdraw or reduce the NHS elements of care because you are funding additional private treatment.

The rules are complex and implementation varies between NHS trusts. Always request a clear written agreement setting out what is NHS-funded and what you are paying privately before starting.

Going Private First, Then Returning to the NHS

Many patients use private healthcare for diagnostics or initial consultations (where NHS waits can be longest) and then return to NHS care for treatment. You are fully entitled to do this:

  • Your private specialist can write to your GP with their findings, and your GP can then make an NHS referral for treatment.
  • If you have already been seen privately, an NHS consultant may accept a copy of private test results to avoid duplication — though they are not obliged to do so.
  • Your 18-week NHS waiting time clock starts from the date of the NHS referral, not from any private appointments.

The main risk is that you spend money privately on diagnostics and then still face a significant NHS wait for treatment. Consider whether a private referral directly to a surgical team (who can also operate privately) may be more efficient.

Using Private Health Insurance

If you have private health insurance (PHI), check your policy carefully before proceeding with any treatment:

  • Most policies require pre-authorisation before elective treatment — failing to get this may mean the insurer refuses to pay.
  • Exclusions often apply to pre-existing conditions, chronic conditions, and some mental health treatments.
  • Your insurer may have a network of approved hospitals and consultants — using providers outside this network may not be fully covered.
  • If your insurer refuses to fund treatment, you have the right to complain internally and then to the Financial Ombudsman Service (FOS).

Private health insurance does not affect your right to NHS care — you can always choose to use the NHS instead of or in addition to your private coverage.

Frequently asked questions

Can an NHS trust refuse to treat me on the NHS because I have private insurance?
No. NHS treatment is free at the point of use regardless of whether you have private insurance. A trust cannot refuse NHS treatment or discriminate against you because you have insurance. Your insurance is irrelevant to your NHS entitlement.
I paid for a private operation but had an NHS anaesthetist — is this allowed?
This should not happen in principle — private operations should be carried out entirely by private clinical teams. If an NHS clinician provided private services during NHS working hours without proper authorisation, this may be a breach of their employment contract. Report concerns to the hospital's medical director or NHS England.
Will paying for private treatment affect my position on the NHS waiting list?
It should not. The NHS waiting list is managed on clinical priority, not on whether you use private healthcare. Choosing to go private for one element of care does not remove you from the NHS list for other elements unless you withdraw your NHS referral.
My private insurer refused my claim — what can I do?
Start by using the insurer's internal complaints process. If you are not satisfied, you can refer the complaint to the Financial Ombudsman Service (FOS) free of charge, which can require the insurer to pay up to £415,000. The FOS handles complaints about most private health insurance policies sold in the UK.

What to do next

  1. 1
    NHS choices and rights guidance

    Your legal rights to NHS services under the Constitution.

  2. 2
    Financial Ombudsman Service

    Dispute a rejected private health insurance claim.

  3. 3
    NHS waiting time rights

    Your 18-week right to start treatment and how to enforce it.

  4. 4
    NHS complaints procedure

    How to complain if an NHS trust has charged you incorrectly.

Official bodies and resources

National Health Service

Government

The publicly funded healthcare system in the United Kingdom, providing free healthcare for all UK residents.

Care Quality Commission

Regulator

The independent regulator of health and adult social care in England, inspecting and rating care services.

Financial Ombudsman Service

Ombudsman

Resolves complaints between consumers and financial businesses such as banks, insurers, and lenders.

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Disclaimer

This information is for general guidance only and does not constitute legal advice. You should seek qualified legal help if your situation requires it.