Missed an NHS Appointment? What Usually Happens Next (and What To Do Today)

What most patients worry about after missing an appointment

Almost everyone arrives here with one of the same handful of questions in mind. Short, honest answers — based on how trusts actually behave — are below.

Common situations, calmly explained

Most worry around missed appointments comes from a specific scenario — not the general idea. These are the situations patients most often describe, and what they usually mean in practice.

DNA vs cancellation

Two terms matter here. A DNA (Did Not Attend) means you didn't turn up and didn't tell anyone. A cancellation means you contacted the trust beforehand — even if it was the same morning. Both result in the slot being empty, but the administrative consequences are very different.

• DNAs typically trigger formal review under the trust's access policy.
• Cancellations are routine and rarely affect your position.
• Even a 30-minute warning shifts the record from DNA to cancellation in most systems.
• Repeated cancellations can still trigger review, but the threshold is much higher than for DNAs.

What trusts typically do

Most trusts in England follow a similar pattern, set out in their access policy:

1. First DNA. Booking team usually contacts you for an explanation and offers a rebooking. Your pathway continues.
2. Second DNA (or first with no contact attempt). Risk of being discharged back to your GP, especially for first appointments.
3. Discharge. Letter to you and your GP. You'd then need to be re-referred to come back onto the pathway.

Trusts have discretion. Vulnerable patients, those with learning disabilities, mental health conditions, or other circumstances often get more flexibility — which is exactly why explaining your situation matters.

First appointments vs follow-ups

First outpatient appointments are treated most strictly. They're harder to slot in, and the queue behind them is longer. A first DNA for a long-awaited consultant appointment is more likely to result in formal discharge than a follow-up DNA.

Follow-up DNAs are common and often more forgivingly handled, particularly for routine surveillance. But missing a critical follow-up — for example, a post-surgical review, an oncology check, or a specialist medication monitoring appointment — can have real clinical consequences that an administrative system won't catch.

RTT clock implications

For RTT (Referral to Treatment) purposes, missed appointments can sometimes trigger a clock pause or, in defined circumstances, a clock restart. The rules vary by trust and by type of appointment, but the general principle is:

• Missing a first appointment can pause or restart the clock under specific conditions.
• Missing a follow-up appointment usually doesn't restart the clock.
• Cancellations rarely affect the clock unless they're repeated.
• Vulnerable patient circumstances usually mean the clock isn't restarted.

If you're unsure how a missed appointment has affected your clock, ask the booking team. Use the 18-week calculator to check your current position before and after.

When discharge becomes a risk

• Two consecutive DNAs for the same pathway.
• A DNA where the trust attempted to contact you beforehand and got no response.
• Repeated short-notice cancellations across multiple appointments.
• A DNA combined with no response to follow-up letters from the trust.
• A pattern of DNAs across multiple specialties.

How to rebook calmly and quickly

1. Call the booking team for the specific specialty as soon as you can.
2. Apologise briefly and explain the situation — honesty works.
3. Confirm whether you've been recorded as a DNA or cancellation, and ask if it can be corrected if appropriate.
4. Ask for the next available slot, including short-notice options.
5. Join the cancellation list if you're flexible.
6. Confirm your contact details are up to date.
7. Make a note of the call (date, time, who you spoke to) in case of any later dispute.

Scripts: calling to rebook

Emergencies and unavoidable misses

Hospital admission, a family bereavement, a sudden caring responsibility, or your own significant illness are normal life events. Trusts have discretion to treat these as cancellations rather than DNAs when explained promptly. Document the reason — a hospital discharge summary, a GP note, a death certificate — only if asked. Most rebookings happen on trust alone.

How to avoid missing in future

• Use the NHS App to view and confirm appointments — set reminders.
• Add appointments to your phone calendar with a 24-hour and a 1-hour alert.
• Keep your phone number and address up to date with both GP and trust.
• Ask the booking team to send SMS reminders if available.
• If your circumstances are changing (work, caring, illness), consider asking for evening clinics or virtual appointments where possible.
• If you regularly struggle, mention it — some trusts offer extra support for vulnerable patients.

Common misconceptions

• "One miss and I'm out." Usually not — but two often is.
• "Same-day cancellation is the same as a DNA." It's not. The system records them differently.
• "They'll never give me another chance." Most teams will, especially with a calm explanation.
• "My GP will sort it out." GPs can re-refer, but it's much easier to keep the original pathway alive.
• "My RTT clock is fine." Maybe — but check, don't assume.