Obstetrician A is going overseas. Obstetrician A's patients due for delivery while she is away will be looked after by Obstetrician B for antenatal visits billing 16500. Obstetrician B usually works in the same practice as Obstetrician A and sometimes sees Obstetrician A’s antenatal patients billing item 16500. Can Obstetrician B bill for a pregnancy management fee for those patients who are due while she is away using item 16591? Does this scenario qualify as shared caring?