The Contrast None is identified by letter "Z" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to BR18Z
Fluoroscopy of Thoracolumbar Joint using L Osm Contrast
Fluoroscopy of Thoracolumbar Joint using Other Contrast
Fluoroscopy of Thoracolumbar Joint using H Osm Contrast
Fluoroscopy of Thoracolumbar Joint