How does a GP referral to a specialist work in the NHS?

When your GP decides you need to see a specialist, have tests or surgery, they make a referral through the NHS e-Referral Service (e-RS). You can often choose which hospital or clinic to be referred to, then book your first outpatient appointment online or by phone. Your 18-week 'clock' generally starts on the date of referral. You do not have to go to the nearest hospital — you can usually choose one with a shorter waiting time or that better suits you.

What is the 18-week right and is it guaranteed?

Under the NHS Constitution, you should wait no longer than 18 weeks from GP referral to the start of consultant-led treatment, and the operational standard is that 92% of patients are treated within 18 weeks. If the NHS cannot meet this, it should take all reasonable steps to offer you a range of suitable alternative providers. In reality only around 62% of patients are currently treated within 18 weeks, so the standard is often not met — which is exactly why it helps to track your wait and use your rights.

Can I choose which hospital I'm referred to?

Yes, in most cases you have the right to choose which hospital or consultant-led team you are referred to for your first outpatient appointment. You can compare waiting times, location and reputation — waiting times are often shown in the e-Referral Service and on nhs.uk. Tell your GP if you want to be referred to the hospital with the shortest wait, and they can refer you there.

I've been waiting far longer than 18 weeks — what can I do?

First, note your referral date, the hospital and your referral reference (UBRN). Contact the hospital's booking or RTT team to ask about your RTT clock and expected timescale, and raise delays with the hospital's PALS (Patient Advice and Liaison Service). If you have waited more than 18 weeks, you can explicitly ask to be offered an alternative provider, as the NHS should take reasonable steps to provide faster options. You can also go back to your GP to chase or re-refer, and tell them if your condition is getting worse.

What happens if cancer is suspected — is there a faster route?

Yes. If cancer is suspected, your GP makes an urgent suspected-cancer referral. Under the Faster Diagnosis Standard, you should be told whether you have cancer, or that it is excluded, within 28 days of that urgent referral. Importantly, if you have red-flag symptoms — abnormal bleeding, a lump, a change in bowel habit, unexplained weight loss — see your GP straight away rather than waiting for routine screening or a routine referral.

When does the 18-week clock pause or reset?

The clock generally starts at referral and runs until treatment starts. It can pause or reset in certain situations — for example if you choose to delay your appointment, if you do not attend, or if a period of monitoring (active surveillance) begins. If you are unsure where you stand, ask the hospital's RTT or booking team to confirm your current RTT status and what your clock is doing.

Should I go private instead of waiting?

Going private (self-pay or via private medical insurance) can get you seen and treated faster, but it supplements rather than replaces the NHS — emergencies and serious or chronic conditions are ultimately handled by the NHS, and private insurance often excludes pre-existing and chronic conditions. Before paying, weigh the cost against using your NHS rights (choosing a shorter-wait hospital, chasing your RTT, and requesting an alternative provider after 18 weeks).

I don't speak much English — how do I chase a referral or understand appointment letters?

You have the right to a free interpreter for NHS appointments and you can ask for language support when contacting a hospital or your GP. Keep your phone number and address up to date so you do not miss appointment calls or letters — missing a first appointment can mean the referral is returned and you have to start again. A community organisation can help you read appointment letters and make chasing phone calls; do not let language stop you using your 18-week rights.

A Complete Guide to NHS Referrals and Your 18-Week Waiting Rights in the UK: The Referral Process, Your Right to Choose a Hospital, What to Do If You Wait Too Long, and the Cancer 28-Day Faster Diagnosis Standard

Key Takeaways

GP referral is the gateway from your family doctor to a specialist / hospital: when your GP decides you need specialist care, they refer you via the NHS e-Referral Service (e-RS) — and you can usually choose which hospital you are seen at.

The 18-week right: under the NHS Constitution, from referral to the start of consultant-led treatment should be no longer than 18 weeks; the operational standard is that 92% of patients are treated within 18 weeks.

If 18 weeks cannot be met: the NHS should take all reasonable steps to offer you a range of suitable alternative providers — you have the right to ask for a faster alternative.

Patient choice: at the point of referral you generally have the right to choose which hospital or consultant-led team you attend for your first outpatient appointment — you can pick one with a shorter wait.

Urgent cancer pathway: suspected cancer is handled via an urgent suspected-cancer referral; the Faster Diagnosis Standard requires that you are told whether cancer is confirmed or excluded within 28 days of that urgent referral. Do not wait for a routine referral if you have red-flag symptoms.

Reality check: currently only around 62% of patients are treated within 18 weeks (well below the 92% standard) — so actively following up and exercising your choice and alternative-provider rights genuinely matters.

How to follow up: note your referral date / RTT clock, contact the hospital booking / RTT team, your GP, or the hospital PALS to check progress; if you have waited more than 18 weeks you can request an alternative provider.

Private options: if you do not wish to wait, consider self-pay or private medical insurance (this supplements rather than replaces the NHS) — see the Medical Insurance Guide.

Jurisdiction: the 18-week RTT right and the NHS Constitution apply to England; the other three nations have their own waiting-time targets.

In the UK, your GP (family doctor) is the gateway to most specialist treatment: when you need to see a specialist, have surgery, or undergo further investigation, your GP refers you to hospital. Many members of the Chinese community in the UK are unsure: how long am I allowed to wait after a referral? Can I choose which hospital? What if there has been no progress after several months? The result is that people either wait passively or wrongly assume they have no say in the matter.

The truth is: you have rights over your waiting time — the NHS Constitution sets a maximum of 18 weeks from referral to treatment; if that cannot be achieved, the NHS should offer you a faster alternative hospital. In practice, waiting times routinely exceed the standard, which is precisely why understanding the rules, following up actively, and making use of your right to choose can make a real, tangible difference to how long you wait.

This article explains: how the referral process works, the 18-week RTT right and “clock”, your right to choose a hospital, what to do if you wait too long, the urgent cancer pathway (28 days), and practical strategies for real-life situations.

Two most practical tips: (1) At the point of referral, actively ask “which hospital has the shortest wait?” and choose it; (2) Once you have waited more than 18 weeks, explicitly ask the hospital or your GP for an alternative provider — this is your right, not an imposition.

Key resources:

NHS referrals and waiting times (RTT) — NHS England: Referral to treatment
NHS e-Referral Service — nhs.uk: NHS e-Referral Service
Your NHS rights — NHS Constitution
Related guides: Registering with a GP, Free NHS interpreting, Medical insurance (private options)

1. How the Referral Process Works

GP assessment: your GP decides you need specialist care, investigation, or surgery;
Referral made: sent electronically via the NHS e-Referral Service (e-RS);
Choose a hospital: you can usually choose from several hospitals or clinics (including by waiting time);
Book your first outpatient appointment: online or by phone;
The 18-week “clock” starts: it generally begins from the date of referral and runs until treatment starts.

Referral does not have to mean the nearest hospital — you can choose one with a shorter wait or one that suits you better (see Section 3).

2. The 18-Week RTT Right and the “Clock”

The core right: under the NHS Constitution, from referral to the start of consultant-led treatment should be no longer than 18 weeks;
Operational standard: 92% of patients should be treated within 18 weeks;
The “clock”: it starts at referral; in certain circumstances (for example, if you choose to delay, or a period of monitoring begins) the clock may pause or reset — you can ask the hospital to confirm your RTT status;
If 18 weeks cannot be met: the NHS should take all reasonable steps to offer you a range of suitable alternative providers.

3. Your Right to Choose a Hospital (Patient Choice)

In most cases, at the point of referral you have the right to choose which hospital or consultant-led team you attend for your first outpatient appointment;
You can select based on waiting time, location, or reputation — waiting times are often comparable on e-RS / nhs.uk;
Tell your GP “I would like to go to the hospital with the shortest wait” and ask them to refer you there.

4. What to Do If You Are Waiting Too Long (Active Follow-Up)

Step	What to do
Record key information	Note your referral date, the hospital, and your referral reference / UBRN
Check progress	Contact the hospital booking / RTT team and ask about your RTT clock and expected timescale
Contact PALS	Raise the delay with the hospital PALS (Patient Advice and Liaison Service) and seek their assistance
If you have waited more than 18 weeks	Explicitly request an alternative provider — the NHS should offer faster options at another hospital
Return to your GP	Ask your GP to chase the referral or re-refer you somewhere with a shorter wait; tell them if your condition is getting worse

If your condition deteriorates: do not simply wait — go back to your GP and explain, as you may need to be seen urgently; for emergencies or red-flag symptoms go directly to 111 / A&E.

5. Urgent Cancer Pathway: the 2-Week Referral and 28-Day Faster Diagnosis Standard

When cancer is suspected, your GP makes an urgent suspected-cancer referral;
Faster Diagnosis Standard: you should be told whether you have cancer or that it has been excluded within 28 days of that urgent referral;
Do not substitute screening for seeking help about symptoms: if you have red-flag symptoms such as abnormal bleeding, a lump, a change in bowel habit, or unexplained weight loss, see your GP immediately rather than waiting for routine screening or a routine referral — see the Cancer Screening Guide.

6. The Reality and Practical Strategies

Current position: only around 62% of patients are currently treated within 18 weeks (well below the 92% standard) — waits are broadly longer than they should be;
Strategies: (1) at referral, choose the hospital with the shortest wait; (2) record and regularly follow up your RTT; (3) once you have waited more than 18 weeks, request an alternative provider; (4) return to your GP promptly if your condition changes; (5) if you do not wish to wait, consider private care / private medical insurance (this supplements rather than replaces the NHS — see the Medical Insurance Guide).

7. Common Situations and Pitfalls for the Chinese Community

“I’ve been referred — I just have to wait” — you have 18-week rights + patient choice + the right to an alternative provider; knowing how to follow up can get you seen faster.
Not knowing you can choose your hospital — at the point of referral, actively choose the hospital with the shortest wait.
Unable to understand appointment letters or make chasing phone calls — you can request a free interpreter; Circle Vision Foundation can help.
Having red-flag symptoms but waiting for a routine referral or screening — see your GP immediately and ask for an urgent cancer referral.
Missing a hospital call or letter and having the referral “cancelled” — keep your phone number and address up to date; missing a first appointment may mean the referral is returned and you have to start again.
Defaulting straight to private care — going private can speed things up, but emergencies and serious or chronic conditions ultimately still depend on the NHS; weigh the options before deciding.

Circle Vision Foundation Services

Circle Vision Foundation (CVF) provides referral and waiting-time advocacy support for the Chinese community in the UK:

Explaining your 18-week rights — clarifying your RTT rights, patient choice, and alternative-provider rights
Progress follow-up assistance — bilingual support contacting the hospital RTT team or PALS to check progress and chase referrals
Alternative provider requests — guidance on requesting a faster alternative hospital once you have waited more than 18 weeks
Appointment letter interpretation and telephone support — to avoid missing appointments and having referrals returned
Urgent cancer referral prompts — how to be seen quickly when you have red-flag symptoms
Interpreter arrangement guidance — how to request a free interpreter for appointments and phone calls

Email: [email protected]
Address: 5th Floor, 167-169 Great Portland Street, London, W1W 5PF
Website: circle-vision.org/contact-us

Jurisdiction / Data Version Note

Scope: the 18-week RTT right and the NHS Constitution apply to England; Scotland, Wales, and Northern Ireland each have their own waiting-time targets.

Version of rules: based on NHS England RTT standards (18 weeks / 92%), the NHS Constitution (alternative-provider rights), and the cancer Faster Diagnosis Standard (28 days), with current actual performance noted (approximately 62% treated within 18 weeks, as at early 2026).

This article is not medical or legal advice — it is a guide to your rights; for your specific condition and referral please consult your GP.

Version & Responsibility:

Jurisdiction: England
Data sources: NHS England (RTT), NHS Constitution, nhs.uk, cancer Faster Diagnosis Standard
Date last verified: 2026-06-06
Published by: Circle Vision Foundation (registered charity in England & Wales, charity no. 1209727)
Feedback and corrections: if you find that information is out of date or factually incorrect, please email [email protected] and we will verify and update within 14 days.

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