What is the distinction between waiting less than the constitutional standard of 18 weeks and the target of less than 92% waiting less than 18 weeks in the NHS?
In the context of the NHS in England, the distinction between the constitutional standard of 18 weeks and the target of less than 92% waiting less than 18 weeks refers to how waiting times for elective (non-urgent) treatments are measured and managed.
### Constitutional Standard of 18 Weeks:
- The NHS Constitution sets a right for patients to start consultant-led treatment within a maximum of 18 weeks from referral. This is often referred to as the **18-week referral-to-treatment (RTT) standard**.
- The idea is that patients should not have to wait longer than 18 weeks from the time they are referred by their GP to when they start their treatment, barring some exceptions (e.g., patients choosing to wait longer, clinical reasons for delay).
### Target of Less Than 92% Waiting Less Than 18 Weeks:
- The NHS aims to meet the standard for **at least 92% of patients**. This means that NHS trusts should ensure that **at least 92% of patients** who are referred for elective treatment start their treatment within 18 weeks.
- This target acknowledges that there may be exceptional cases where the 18-week standard isn't met due to clinical complexity, patient choice, or other factors.
### Distinction:
- The **constitutional standard** is a broad guarantee that sets the expectation that most patients should receive treatment within 18 weeks.
- The **92% target** is a specific operational goal that the NHS uses to measure performance. It allows for some flexibility, recognizing that in some cases, achieving the 18-week standard might not be possible, but the vast majority of patients (92% or more) should still be treated within this time frame.
In practice, if an NHS trust achieves the target, it means that 92% or more of their patients were treated within 18 weeks, which is considered acceptable performance. If they fall below this target, it indicates that more patients are waiting longer than the expected standard, signaling potential issues with service delivery.

