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 BT1BZ
Fluoroscopy of Bladder and Urethra using Other Contrast
Fluoroscopy of Bladder and Urethra using H Osm Contrast
Fluoroscopy of Bladder and Urethra using L Osm Contrast
Fluoroscopy of Bladder and Urethra