We are seeking clarification regarding MBS item no. 00599 (after-hours item) and its applicability in certain settings. Specifically, we would appreciate your guidance on the following points:

1. Can item 00599 be used in an in-hospital setting—for example, when a provider sees a patient who is admitted in the hospital?
2. What MBS after hour item numbers are available for use by providers in an in-hospital setting?