Ultrasonography

• BY47 - Fetal Umbilical Cord
• BY48 - Placenta
• BY49 - First Trimester, Single Fetus
• BY4B - First Trimester, Multiple Gestation
• BY4C - Second Trimester, Single Fetus
• BY4D - Second Trimester, Multiple Gestation
• BY4F - Third Trimester, Single Fetus
• BY4G - Third Trimester, Multiple Gestation