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

Anatomical Regions

  • BW2 - Computerized Tomography (CT Scan)

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

  • BW1 - 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

  • BW3 - Magnetic Resonance Imaging (MRI)

    Computer reformatted digital display of multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in a body site excited within a magnetic field

  • BW0 - Plain Radiography

    Planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate

  • BW4 - Ultrasonography

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