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Understanding an NHS appointment letter

NHS appointment letters pack a lot into one page — where to go, when, who you're seeing, and sometimes how to prepare. This guide helps you find each part quickly.

General information · Last reviewed

What this document usually is

It's a letter (or digital message) from a hospital, clinic or service confirming a booked appointment, often after a GP referral. It usually includes a hospital or NHS number and a contact number for changes.

Why you might have received it

  • Your GP referred you to a specialist or clinic
  • A follow-up after a previous appointment
  • A test, scan or procedure has been booked
  • A routine screening invitation

What to check on it

  • Date, time and whether it's in person, by phone or video
  • The exact site, building and department — large hospitals have several
  • Any preparation instructions (fasting, medication, bringing a sample)
  • What to bring: letter, medication list, glasses, ID
  • The number to call if you need to rearrange

Preparation instructions matter

Instructions such as not eating beforehand are there for your safety and for accurate results. If anything is unclear, call the department rather than guessing.

Things worth a second look

  • A text or email asking you to pay for an NHS appointment — NHS hospital appointments are free at the point of use
  • Links asking for bank details to “confirm” an appointment

What you might need to do next

  • Add the date and location to your calendar
  • Read and follow any preparation instructions
  • Call the number on the letter if you need to change it
  • If you have questions about your health or treatment, ask your GP or the clinical team

Official sources

Common questions

Q. Can I change my appointment?

A. Usually, yes — use the phone number or online link on the letter.

Q. What if I don't understand why I've been referred?

A. Your GP or the team named on the letter can explain. ClariDoc can explain the letter's wording, but not your medical situation.

Related guides

See all health letters and keeping records →

Important disclaimer

This guide is general information about common UK documents, not legal, financial, tax or medical advice. Always read your own document and, where something is serious, contact the sender or a qualified adviser.

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