NHS waiting list explained

The phrase “NHS waiting list” usually means the list of patients waiting to start consultant-led NHS treatment after a GP referral. The official measure is the Referral-to-Treatment (RTT) waiting list, published by NHS England every month.

The headline national list size has sat around the 7-million mark in recent years. That figure counts RTT pathways, each relating to one referral, across every hospital in England, so someone waiting for treatment for two different conditions is counted twice (what a pathway is). It is not a single physical queue with a single “your number is X” ticket.

Each hospital keeps its own list. Each specialty within each hospital has its own sub-list. So in practice you sit on a specific hospital × specialty list, not on a national one.

The most common route:

1. You see your GP. They decide you need a specialist.
2. The GP makes a referral via the NHS e-Referral Service (e-RS). You usually get a choice of hospitals at this point — NHS guidance asks referrers to shortlist on average 5, where practicable.
3. The hospital receives the referral. That date is your RTT clock start. The 18-week clock begins running.
4. You are now on the hospital's RTT waiting list for that specialty. You will be sent a first outpatient appointment.

Other routes onto the list include consultant-to-consultant referrals, follow-on referrals after diagnostics, and some direct-access pathways. They all generate an RTT clock-start event.

NHS waiting lists are not strictly first-come, first-served. Hospitals run them based on clinical priority, sub-specialty subdivision, and operational constraints. The main factors:

• Clinical priority code. Urgent and cancer referrals jump the routine queue. Two-week-wait (2WW) / Faster Diagnosis Standard (FDS) pathways exist for suspected cancer.
• Sub-specialty. Within ophthalmology, a glaucoma sub-list moves at a different pace from a cataract sub-list, even at the same hospital.
• Theatre capacity. Surgical lists are limited by staffed theatre slots, anaesthetic cover, and bed availability — not just consultant clinic time.
• Validation cycles.Hospitals periodically contact long-waiters to check they still want and need the appointment. If you don't respond, you may be removed.

This is why the “average wait” differs from your wait. For the published numbers, see What are NHS waiting times?

There is no single “your position is N” lookup. The practical options:

• Call the hospital's booking team.Ask for an update on your specific specialty list. Have your NHS number ready. They can usually tell you the typical wait remaining and whether you're tagged as routine or urgent.
• Check NHS My Planned Care. myplannedcare.nhs.uk shows the typical wait for new referrals at your trust by specialty.
• Ask your GP for your RTT clock-start date. Combine it with the median wait at your hospital to estimate the time you have left. Use HospitalWaits for the per-hospital median.

When your GP refers you for a first outpatient appointment with a consultant-led service, you can use Right to Choose to pick the provider, from those with an NHS contract for your treatment. It applies at the point of referral, your GP decides whether a referral is clinically appropriate, and there are exceptions (urgent care, suspected cancer, an onward referral for a condition you are already being treated for, and others).

Already on a list? The NHS Choice Framework says you can ask to be referred to a different provider if you have waited, or will wait, more than 18 weeks for non-urgent consultant-led treatment. Ask the hospital treating you or your integrated care board (ICB).

When switching is worth it:

• The new hospital's typical wait is much shorter than your remaining wait at the current one. A gap of a few weeks is rarely worth the friction; a gap of months usually is.
• You can realistically travel to the new hospital for appointments, pre-op assessment, and any follow-ups.
• You haven't been referred yet. Right to Choose applies at the point of referral; once you are waiting, moving depends on the 18-week right and is not always possible.

When switching is usually NOT worth it:

• You're close to a date at your current hospital. A move may not get you treated sooner.
• You're on an urgent or cancer pathway. These have separate rules and faster routes that Right to Choose doesn't supersede.
• The wait gap is borderline. Real-life friction (lost referrals, repeated tests, admin delays) can erase a small advantage.

See the full guide on Right to Choose.

If you have not been referred yet, at your GP appointment (or via reception), say:

“I'd like to exercise my Right to Choose. I've looked at the waiting times and I'd like to be referred to [hospital name], which has a shorter wait for [specialty].”

Make it easier for them by bringing a pre-filled letter. The free GP letter generator builds one in 30 seconds.

If you are already waiting, the Choice Framework says to contact the hospital treating you or your integrated care board (ICB) to ask for a different provider once you have waited, or will wait, more than 18 weeks. In its own example the patient “does not need to go back to his GP for this transfer”. How your wait is counted afterwards depends on how the move is made: ask the new provider which start date it has recorded. More on moving mid-wait.

The Handbook to the NHS Constitution says you have the right to start consultant-led treatment within a maximum of 18 weeks from referral for non-urgent conditions, with exceptions (for example, if you choose to wait longer). If that is not possible, the ICB or NHS England, whichever commissions and funds your treatment, must take all reasonable steps to offer you a suitable alternative provider that can treat you sooner. A 52-week wait is far past that. If you reach that point:

• Contact the hospital's PALS (Patient Advice and Liaison Service) and ask in writing for an update on your case.
• Ask the hospital you were referred to, or your local integrated care board (ICB), to offer you a provider that can treat you sooner. The handbook says you need to contact one of them before alternatives can be investigated. The trust × specialty pages on HospitalWaits show which alternatives have shorter waits.
• Escalate to your local Healthwatch and your MP.
• If you are not offered an alternative, the NHS Choice Framework says to complain to your ICB in most cases. You can also complain to NHS England: email england.choice@nhs.net or call its contact centre on 0300 311 22 33.
• For a complaint about the hospital itself, complain to the hospital or to your ICB. NHS England's complaints guidance says “You cannot complain to both.” By law the body must acknowledge it within 3 working days and send you a written response (NHS complaints regulations, regulation 13, regulation 14).

How do I find out where I am on the NHS waiting list?

There is no single national list with a numbered position. The closest equivalents are: call your hospital's booking team and ask, check NHS My Planned Care for the typical wait at your provider, and ask your GP for your RTT clock-start date so you can work out how long you have already waited.

Can I switch hospitals to a shorter NHS waiting list?

Two different rights apply. When your GP refers you for a first outpatient appointment with a consultant-led service, you have a legal right to choose the provider, from those with an NHS contract for the service (with exceptions). Once you are on a list, the NHS Choice Framework says you can ask to be referred to a different provider if you have waited, or will wait, more than 18 weeks for non-urgent consultant-led treatment; you ask the hospital or your integrated care board (ICB), and it is not always possible. How your wait is counted after a move depends on how the move is made, so ask the new provider which start date it has recorded.

What happens if I wait more than 18 weeks on the NHS list?

The Handbook to the NHS Constitution says you have the right to start consultant-led treatment within a maximum of 18 weeks from referral for non-urgent conditions. The right has exceptions, for example if you choose to wait longer or if a delay is in your best clinical interests. If 18 weeks is not possible, the ICB or NHS England, whichever commissions and funds your treatment, must take all reasonable steps to offer you a suitable alternative provider that can treat you sooner. To start that, contact the hospital you were referred to or your local integrated care board (ICB). You can also ask your hospital for an update and contact PALS.

What happens if I wait more than 52 weeks?

The legal waiting-time right in the NHS Constitution is 18 weeks, not 52, so a 52-week wait is far past the 18-week maximum. Unless an exception applies, the steps for an 18-week wait apply: ask the hospital you were referred to or your local integrated care board (ICB) to offer you a provider that can treat you sooner. If you are not offered one, the NHS Choice Framework says to complain to your ICB in most cases, and that you can also complain to NHS England, giving the email address england.choice@nhs.net. NHS England's contact centre is also on 0300 311 22 33. Your hospital's PALS, your local Healthwatch and your MP can also help.

Does the NHS waiting list include diagnostic tests like MRI?

If the test is part of a referral to a consultant-led service, yes: you are on the RTT waiting list while you wait for it, and NHS England says people on that list may be waiting for diagnostics, an appointment with a consultant, or admission for a procedure. Waits for the tests themselves are also published separately each month, for 15 key tests and procedures, in NHS England's diagnostic waiting times collection (DM01).

• NHS England — Referral-to-Treatment (RTT) statistics
• NHS My Planned Care
• NHS England — Patient Choice guidance
• NHS Constitution for England
• Handbook to the NHS Constitution for England (the 18-week right and its exceptions)
• NHS Choice Framework (who to contact about a long wait)
• NHS England — Feedback and complaints about NHS services
• NHS website — Guide to NHS waiting times in England
• NHS website — What is PALS (Patient Advice and Liaison Service)?
• Public Service Ombudsman (formerly the Parliamentary and Health Service Ombudsman) — Making a complaint about the NHS in England
• Public Service Ombudsman — A new name for a new chapter
• NHS Constitution — complaint and redress
• NHS England — RTT statistics user guidance (who is on the waiting list)
• NHS England — Monthly diagnostic waiting times and activity (DM01)
• HospitalWaits methodology