NHS Waiting Times: Your 18-Week Right and What to Do When It Is Breached

The NHS Constitution for England sets out the rights every patient has. Those that relate to waiting times are:

• Right to start consultant-led non-urgent treatment within 18 weeks of GP referral — the headline 'referral to treatment' (RTT) right. Applies to elective procedures (hip replacement, hernia repair, cataracts) and to first outpatient consultant appointments leading to treatment.
• Right to be seen by a cancer specialist within 2 weeks of urgent GP referral. Further targets: 31 days from diagnosis to first treatment for cancer; 62 days from urgent referral to first treatment.
• Right to be admitted, transferred, or discharged within 4 hours of arrival at A&E.
• Right to diagnostic tests within 6 weeks of referral (DM01 standard).
• Right to NHS Talking Therapies within 6 weeks for assessment and 18 weeks to start treatment for common mental health conditions.

The substantive legal force comes from the National Health Service Act 2006 and from the Standing Rules Regulations 2012. Regulation 45 says: "where, on the basis of clinical advice, a relevant body considers that a patient's treatment is unlikely to commence within the maximum waiting time, that body must offer the patient at least one alternative". An ICB is a 'relevant body'.

The 18-week standard does not apply where:

• The patient chooses to wait longer — documented patient preference (wanting a specific surgeon, scheduling around a family event, declining the first offered date).
• Clinical reasons require a delay — waiting for weight to be optimised, completing pre-operative tests, treating a comorbidity first.
• The pathway is suspended due to patient non-attendance, deterioration requiring different treatment, or the patient becoming clinically unfit.
• The treatment is excluded — assisted conception (IVF) commissioning varies by ICB; some cosmetic procedures; some non-clinically-indicated procedures.

It does apply to: most NHS elective surgery; first consultant outpatient appointments leading to treatment; diagnostic-then-treatment pathways; mental health pathways involving a consultant; cancer pathways (separate stricter targets); routine pre-operative assessments.

When a pathway is paused for clinical reasons or patient preference, the clock pauses too — but it does not restart from zero. The ICB and provider must keep an audit trail of every pause and the clinical justification.

The 18-week clock starts on the date your GP referral is received by the secondary-care provider (not the date of the GP consultation). If the provider's stated waiting time will take you past 18 weeks, you have a right to request alternative provision before the breach occurs.

1. Check your referral and clock-start date. Ask the booking team or use the NHS App. Add 18 weeks to find your maximum date.
2. Contact your ICB Patient Advice and Liaison Service (PALS) as soon as the waiting time looks like it will breach. Explain that you wish to invoke your right under regulation 45 of the Standing Rules Regulations and ask the ICB to identify an alternative provider whose waiting time is shorter, including a private provider commissioned at NHS expense if necessary.
3. Use Patient Choice. The Patient Choice Framework gives you the right to choose from any provider commissioned by an ICB or NHS England that meets NHS quality standards. The NHS service search shows comparative waiting times. Ask your GP to re-refer to a provider with a shorter wait.
4. Ask for a clinical priority review. If your condition has deteriorated since the referral, the consultant team can re-stratify you to higher urgency. Provide written evidence from your GP about worsening symptoms or impact on work and daily life.
5. Escalate in writing to the ICB's Chief Executive if PALS is unresponsive. Reference regulation 45 explicitly. Keep all replies.

If the 18-week deadline has already passed and you have not been offered alternative provision:

1. Formal complaint to the NHS provider. The Local Authority Social Services and National Health Service Complaints (England) Regulations 2009 require providers to acknowledge within 3 working days and respond within a reasonable period.
2. Formal complaint to the ICB. ICBs hold the commissioning responsibility.
3. Parliamentary and Health Service Ombudsman (PHSO). Once internal complaints are exhausted (final response letter received), you have 12 months to refer to the PHSO.
4. Judicial review. For clear regulatory breaches with significant ongoing harm. Strict time limit: 3 months from the decision (or "promptly"). Public-law legal aid may be available subject to means.
5. Clinical negligence claim. If the wait has caused or aggravated harm. Time limit: 3 years from knowledge of the harm. Strict pre-action protocol applies.

The 18-week standard has not been met nationally since February 2016. Latest NHS England RTT data shows around 60% of patients on the waiting list have waited less than 18 weeks (target 92%), with around 6 million people on elective waiting lists. The waiting list is gradually falling from its 2023 peak but remains far above pre-pandemic levels.

Practical implications:

• The right under regulation 45 to alternative provision is increasingly important — many ICBs now have commissioning arrangements with private providers to absorb backlog at NHS rates.
• Independent Sector Treatment Centres (ISTCs) provide NHS-commissioned care at private hospitals. Asking specifically for an ISTC alternative is often the fastest route.
• If you are on a long waiting list and your symptoms worsen, ask your GP for a clinical-priority review at any time — a documented deterioration can move you up.
• Use the NHS App to track your referral status. Lost-in-the-system referrals are a known issue; the App now shows them in your medical record.