Professional attendance by a consultant physician in the practice of the consultant physician's specialty of psychiatry following referral of the patient to the consultant physician by a referring practitioner-an attendance of not more than 15 minutes in duration at consulting rooms, if that attendance and another attendance to which any of items 296, 297, 299, 300, 302, 304, 306, 308, 91827 to 91831, 91837 to 91839 and 92437 applies exceed 50 attendances in a calendar year for the patient