Pelvis or abdomen, pregnancy‑related or pregnancy complication, fetal development and anatomy, ultrasound (the current ultrasound) scan of, by any or all approaches, with measurement of all parameters for dating purposes, performed by or on behalf of a medical practitioner, who is a Member or Fellow of the Royal Australian and New Zealand College of Obstetricians and Gynaecologists, if: (a) an ultrasound of the same pregnancy confirms a multiple pregnancy; and (b) the dating of the pregnancy (as confirmed by the current ultrasound) is 17 to 22 weeks of gestation; and (c) further examination is clinically indicated in the same pregnancy in which item 55759 or 55762 has been performed; and (d) the service mentioned in item 55706, 55709, 55712 or 55715 is not performed in conjunction with the current ultrasound during the same pregnancy; and (e) the current ultrasound is not performed on the same patient within 24 hours of a service mentioned in item 55757 or 55758 (NR)