The 3rd character refers to the root operation or the objective of the procedure.

Gastrointestinal System

  • BD2 - Computerized Tomography (CT Scan)

    Computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation

  • BD1 - Fluoroscopy

    Single plane or bi-plane real time display of an image developed from the capture of external ionizing radiation on a fluorescent screen. The image may also be stored by either digital or analog means

  • BD4 - Ultrasonography

    Real time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves