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 BT12Z
Fluoroscopy of Left Kidney using High Osmolar Contrast
Fluoroscopy of Left Kidney using Low Osmolar Contrast
Fluoroscopy of Left Kidney
Fluoroscopy of Left Kidney using Other Contrast