Current codes for claiming for ultrasound scans through the New Zealand Public Health and Disability Act 2000 Primary Maternity Services Notice 2007.

Code Clinical indication Comment
TA Threatened abortion Scan at time of bleeding. Serial scans may be necessary if bleeding persists.
EP Suspected ectopic pregnancy For example, previous tubal surgery, PID or ectopic. Suggestive symptoms (for example, abdominal pain).
PM Pelvic mass in pregnancy Any palpable abnormality in early pregnancy.
UD Uterus not equal to dates If discrepancy >4 weeks, or discrepancy in amniotic fluid.
BA Before booking chorionic villus sampling (CVS) or amniocentesis or Nuchal Translucency When unsure dates.
CT Consideration of termination  
NT Dating and early evaluation for chromosomal abnormality Nuchal translucency assessment at 11–13+6 weeks, assessment for gestational age, diagnosis of multiple pregnancy.
NF Early evaluation for chromosomal abnormality follow-up In cases where the first scan was technically unsuccessful.
AN Anatomy Scan to confirm dates, assess foetal anatomy and placental position. Performed at 18–20 weeks ideally.
AF Anatomy follow-up In cases where the first scan was technically unsuccessful.
GR Suspected growth abnormality (IUGR or macrosomia) Clinical suspicion of abnormal growth of foetus (IUGR or macrosomia) or abnormal volume of amniotic fluid.
GF Suspected growth abnormality (IUGR or macrosomia) follow-up To assess growth trend (2 weeks after GR scan).
PL Check placenta To check placental site at around 36 weeks.
AH Antepartum haemorrhage Bleeding in pregnancy. If serial scans are required, refer to secondary maternity services.
AP Abdominal pain Abdominal pain in pregnancy.
MP Malpresentation To assess fetal position and size after 36 weeks.
FC Suspected foetal compromise Significant reduction in foetal movements.
FD Suspected intrauterine foetal death  
PP Maternal postpartum For suspected retained products or postpartum bleeding.

Source: Department of Internal Affairs 2007