This value set includes codes based on the following rules:

• Include these codes as defined in http://loinc.org

  Code	Display
  11851-3	Occipital-Frontal Diameter
  11871-1	FL/AC
  11979-2	Abdominal Circumference
  11984-2	Head Circumference
  11820-8	Biparietal Diameter
  11823-2	Cephalic Index
  33069-6	Nuchal Translucency
  11864-6	Transverse Thoracic Diameter
  33068-8	Thoracic Area
  11863-8	Transverse Cerebellar Diameter
  11947-9	HC/AC
  11824-0	BPD area corrected
  11862-0	Transverse Abdominal Diameter
  11860-4	Cisterna Magna Length
  11963-6	Femur Length
  11988-3	Thoracic Circumference
  59078-6	Left Ventricle/Right Ventricle Diameter Ratio
  59077-8	Foramen Ovale Diameter/Aortic Root Diameter
  59073-7	Cardiac Circumference, transverse by US
  59076-0	Cardiothoracic Area Ratio
  11872-9	FL/BPD
  59075-2	Cardiac Cross-sectional Area, transverse by US
  11818-2	Anterior-Posterior Abdominal Diameter
  11873-7	FL/HC
  11819-0	Anterior-Posterior Trunk Diameter
  59074-5	Cardiothoracic Circumference Ratio

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  249192005	Number of umbilical arteries