An 'appointment not from the waiting list' is a patient that has been seen in the clinic that did not have a referral on the waiting list. This can occur as a result of he following:
1. A patient requires to be seen urgently and they are booked into a clinic and seen on the same week that a referral was added to the waiting list.
2. A patient presents to the emergency department and is seen in clinic by a specialist rather than wait in the ED.
3. A patient is referred to another clinic and during their appointment the consultant asks for a consult from another specialist team.
4. A data entry error has occurred and the appointment doesn't link to the referral.