| PCS-2023 > B > BY > BY4 > BY4B | 
BY4  | Fetus and Obstetrical, Ultrasonography | |
Info:  | Ultrasonography: Real time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves | |
BY4B  | Ultrasonography, First Trimester, Multiple Gestation | |
BY4BZ  | None | |
BY4BZZ  | None | |
BY4BZZZ  | Ultrasonography of First Trimester, Multiple Gestation | |
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