Professional attendance at consulting rooms or in hospital by a specialist in the practice of the specialist's specialty following referral of the patient to the specialist by a referring practitioner-an attendance after the first attendance in a single course of treatment, if: (a) during the attendance, the specialist determines the need to perform an operation on the patient that had not otherwise been scheduled; and (b) the specialist subsequently performs the operation on the patient, on the same day; and (c) the operation is a service to which an item in Group T8 applies; and (d) the amount specified in the item in Group T8 as the fee for a service to which that item applies is $349.95 or more For any particular patient, once only on the same day