The Qualifier None is identified by letter "Z" and occupies the 6th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to BF12YZ
Fluoroscopy of Gallbladder using Other Contrast
Fluoroscopy of Gallbladder using High Osmolar Contrast
Fluoroscopy of Gallbladder using Low Osmolar Contrast