Megavoltage planning—level 5 Specialised radiation therapy simulation and dosimetry for treatment planning, if both of the following apply in relation to the simulation: (a) treatment set‑up and technique specifications are in preparation for a specialised case with general anaesthetic or sedation supervised by an anaesthetist; (b) a high‑quality three‑dimensional or four‑dimensional image volume dataset is acquired in treatment position for the relevant region of interest to be planned and treated with image verification Applicable once per course of treatment (Anaes.)