How to Write a Letter About Delayed NHS Treatment UK: Your Rights and What to Do
Waiting for NHS treatment is one of the most common and most frustrating experiences in healthcare in England right now. Millions of people are on waiting lists, many have already passed the 18-week point the NHS Constitution guarantees as a maximum, and most do not know they have enforceable rights to do something about it.
You do not have to wait passively. You have a legal right to start consultant-led treatment within 18 weeks of referral. If that right is being breached, you are entitled to request an alternative provider, including private treatment at NHS expense. You can escalate to your Integrated Care Board. You can complain to the Parliamentary and Health Service Ombudsman. And you can put all of this in writing in a way that creates a formal record and, in most cases, prompts a faster response than a phone call ever would.
This guide explains your rights precisely, what the different timescales cover, who to write to, what to say and how to escalate if the first letter does not produce a result.
Your Legal Right: 18 Weeks from Referral to Treatment
The NHS Constitution gives every patient in England a legal right to start non-urgent consultant-led treatment within a maximum of 18 weeks from the date of GP referral. As NHS England’s guide to waiting times confirms, your waiting time clock starts from the day the hospital or service receives your referral letter or from when you book your first appointment through the NHS e-Referral Service. The clock stops when treatment begins, when a clinician decides treatment is not necessary, or when you choose not to proceed.
This right is enforceable. It is underpinned by Regulation 45 of the National Health Service Commissioning Board and Clinical Commissioning Groups (Responsibilities and Standing Rules) Regulations 2012. If the NHS cannot provide treatment within 18 weeks, it must offer you an alternative provider who can.
The right does not apply in a small number of situations: if you choose to wait longer, if your clinician has determined that delaying treatment is in your clinical best interests, if you failed to attend appointments that were offered to you from a reasonable range of options, or if the treatment is no longer necessary. In all other cases, the 18-week right stands.
Other Key Waiting Time Rights
Urgent cancer referral: If your GP refers you urgently with a suspected cancer, cancer should be confirmed or ruled out within 28 days of referral under the Faster Diagnosis Standard. You should also be seen by a specialist within two weeks of an urgent GP referral.
Diagnostic tests: The operational standard for diagnostic tests such as MRI, CT scans and endoscopies is six weeks from referral. This is a target rather than a personal legal right, but breaching it is grounds for a complaint.
NHS Talking Therapies: The standard is six weeks for an initial assessment and 18 weeks to start treatment for common mental health conditions.
Last-minute operation cancellation: If a hospital cancels your operation on or after the day of admission for non-clinical reasons, it must offer you a new binding date within 28 days or fund your treatment at a hospital of your choice. This is a specific and often unknown right that many patients are never told about.
Your Right to Choose an Alternative Provider
From January 2024, a significant expansion of patient choice came into force. If you are waiting beyond 18 weeks, you are entitled to request that your Integrated Care Board refer you to any provider that has a contract with any ICB in England, not just providers in your local area. This includes private hospitals that have NHS contracts. The ICB must pay for your treatment at the new provider.
This means that if you are waiting 12 months for a knee replacement at your local NHS trust, and a private hospital in another part of England has a contract with its local ICB and can see you in three months, you can request that your ICB fund your treatment there. This right is not widely publicised. Using it requires you to ask for it explicitly and in writing.
To exercise this right: write to your hospital’s Patient Advice and Liaison Service (PALS) or to your ICB, state that your 18-week right has been or is about to be breached, request that you be offered alternative providers under Regulation 45 of the NHS (Responsibilities and Standing Rules) Regulations 2012 and the January 2024 provider choice extension, and ask for a response within a specific timescale.
Who to Write To First: PALS
The first port of call for most NHS concerns is the Patient Advice and Liaison Service at your hospital trust. PALS is a free, confidential service that helps patients, families and carers with concerns about NHS care. They are not an independent complaints body, but they can often resolve issues informally and quickly, and they provide a named contact point within the trust.
Find your hospital’s PALS contact on the trust website or by calling the main switchboard. Write to PALS first for issues that can be resolved at trust level: a waiting list query, a cancelled appointment, a request for alternative provision within the trust, or a question about your position on a waiting list.
When to Write to Your ICB
Write directly to your Integrated Care Board when the issue cannot be resolved by the trust alone, when your 18-week right has been breached and you want to exercise your right to an alternative provider, when the trust has not responded to your PALS contact within a reasonable time, or when your concern relates to the commissioning of services rather than how the trust operates.
Your ICB is the NHS body responsible for commissioning healthcare services in your area. Its contact details are on the NHS England website. A letter to the ICB about a waiting time breach carries more weight than a call to the trust because it invokes a commissioning-level obligation that the ICB itself is responsible for meeting.
How to Write Your Letter
State Your Clinical Situation First
Open with a brief, factual description of your condition, your referral date, the treatment you are waiting for and the current position. Do not include a full medical history. Include only what is directly relevant to the waiting time issue.
Reference the 18-Week Right
State that you are aware of your right to start consultant-led treatment within 18 weeks of referral under the NHS Constitution and Regulation 45 of the National Health Service (Responsibilities and Standing Rules) Regulations 2012. This signals that you understand the legal framework and are not simply making a general complaint.
State the Impact on You
Describe specifically how the delay is affecting your health, your ability to work, your daily functioning or your quality of life. Be factual and specific. A letter that describes concrete impact is harder to set aside than a general expression of frustration.
State What You Want
Be specific about the outcome you are seeking. A binding treatment date within the 18-week maximum. A referral to an alternative provider. A written explanation of how long you will wait and why. A response within a specific timescale. Ask for one or more of these clearly.
Full Worked Example: Letter to PALS About Waiting Time Breach
[Your full name]
[Your date of birth]
[Your NHS number]
[Your address]
[Date]
Patient Advice and Liaison Service (PALS)
[Hospital trust name and address]
Subject: 18-Week Waiting Time Breach – Request for Treatment Date or Alternative Provider – [Your name]
Dear PALS,
I am writing about my ongoing wait for [name of treatment or procedure] at [hospital name]. I was referred by my GP on [date]. It is now [X weeks/months] since my referral, and I have not yet received a treatment date.
My current clinical situation
[Describe your condition and the impact of waiting briefly and factually. For example: I was referred for [condition/procedure] following a diagnosis of [condition]. During the waiting period my symptoms have [worsened / remained severe / prevented me from working / significantly affected my daily life in the following ways: describe specifically]. I have attended [number] outpatient appointments and have been told I require [describe the treatment]. I have not yet been given a date for that treatment.]
My right to treatment within 18 weeks
Under the NHS Constitution, I have a legal right to start consultant-led treatment within a maximum of 18 weeks of referral. My referral was received by the trust on [date]. I am now in week [X] of my wait. My 18-week right [has been breached / will be breached on approximately [date] if I am not given a treatment date].
Under Regulation 45 of the National Health Service Commissioning Board and Clinical Commissioning Groups (Responsibilities and Standing Rules) Regulations 2012, the NHS must take all reasonable steps to offer me a range of suitable alternative providers if the 18-week standard cannot be met. I am formally requesting that this obligation is fulfilled.
What I am asking for
I am asking [hospital trust name / PALS] to: provide me with a confirmed treatment date within the 18-week maximum, or, if this is not possible at this trust, offer me a referral to an alternative provider, including any provider with an NHS contract that can treat me within the 18-week standard. I also ask you to confirm in writing my current position on the waiting list and the expected date of treatment.
Please respond to this letter within 14 days. If the matter cannot be resolved at PALS level, please confirm the process for escalating to a formal complaint to [trust name] or to the Integrated Care Board.
Yours sincerely,
[Your name]
[Contact details]
Full Worked Example: Letter to ICB Requesting Alternative Provider
[Your full name]
[Your NHS number]
[Your address]
[Date]
Chief Executive / Patient Experience Team
[ICB name and address]
Subject: Formal Request for Alternative Provider Under 18-Week Right – [Your name]
Dear Sir or Madam,
I am writing to formally request that [ICB name] exercise its duty under Regulation 45 of the National Health Service (Responsibilities and Standing Rules) Regulations 2012 to offer me treatment with an alternative provider.
I was referred by my GP on [date] for [treatment]. My referral was received by [hospital trust] on [date]. I have now been waiting [X weeks] without a treatment date. My 18-week right under the NHS Constitution has been breached.
I have contacted PALS at [hospital trust] on [date] and [received no satisfactory response / was told no earlier treatment date is available at this trust / was told to continue waiting without a confirmed date].
Under the January 2024 extension of patient choice rights, I am entitled to request referral to any provider with an NHS contract, not only providers within this ICB area. I am asking [ICB name] to identify and refer me to a suitable alternative provider that can offer me treatment within the 18-week standard, and to confirm that the cost of treatment at that provider will be met by [ICB name].
The delay is affecting me in the following ways: [describe the specific impact: I am unable to work / I am in daily pain / my condition has deteriorated since referral / I have been prescribed escalating pain management while waiting which is not a long-term solution].
Please respond within 20 working days with a list of alternative providers and the steps to arrange a referral. If you intend to refuse this request, please confirm your reasons in writing so I can consider whether to escalate to NHS England or to the Parliamentary and Health Service Ombudsman.
Yours sincerely,
[Your name]
[Contact details]
Escalation: If the Letters Do Not Produce a Result
NHS England
If your ICB does not respond or does not take action, escalate to NHS England. NHS England oversees ICBs and can intervene where a commissioner is failing to meet its legal duties around waiting times. Contact NHS England through its website or by writing to NHS England, PO Box 16738, Redditch, B97 9PT.
Parliamentary and Health Service Ombudsman
If you have made a formal complaint to the trust and to the ICB and remain dissatisfied, you can escalate to the Parliamentary and Health Service Ombudsman. The PHSO is independent of the NHS and can investigate complaints about NHS services in England including failures to meet waiting time standards. The service is free and the Ombudsman can recommend that the NHS take remedial action, provide an explanation and, where harm has occurred, pay compensation. You can submit a complaint at ombudsman.org.uk.
If the Delay Has Caused Harm
If you believe that a delay in NHS treatment has caused you clinical harm, for example a condition that has significantly worsened, a cancer that has progressed, or a complication that arose because of the wait, this may give rise to a clinical negligence claim. Clinical negligence claims must generally be brought within three years of the date you knew or ought to have known of the harm and its connection to the delay. Get specialist legal advice as early as possible if you believe this applies to you.
Getting Help
Free advice on NHS waiting times and your rights is available from Citizens Advice and from PALS at your local trust. The My Planned Care website at myplannedcare.nhs.uk lets you check and compare waiting times at different hospitals. If you want help drafting a letter about delayed NHS treatment that references the correct legal framework and asks for the right outcome, the team at LetterLab can help you get it right before you send it.
Quick Checklist: Before You Send
Have you confirmed your referral date and calculated how many weeks you have been waiting?
Have you tried PALS at the trust first before writing to the ICB?
Have you referenced your right under the NHS Constitution and Regulation 45?
Have you described the specific impact of the delay on your health and daily life?
Have you asked for a specific outcome: a treatment date, a list of alternative providers, or a written explanation?
Have you set a deadline for response?
Are you sending by email or recorded post so you have a dated record?
Have you kept a copy?
The Key Takeaway: The 18-Week Right Is Enforceable, Not Just Aspirational
The NHS Constitution’s 18-week guarantee is a legal right, not a target the NHS is working towards. When it is breached, the NHS has specific obligations: to offer you alternative provision, to justify the delay in writing and to take steps to bring your treatment within the standard. Most patients on waiting lists do not know this. They wait, grow anxious, and assume nothing can be done.
Write the letter. Reference the law. Ask for a specific outcome. The process works for patients who use it. The vast majority do not, which is exactly why a clear, formal, evidenced letter tends to produce a faster response than months of waiting silently ever does.
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