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 BT13YZ
Fluoroscopy of Bilateral Kidneys using High Osmolar Contrast
Fluoroscopy of Bilateral Kidneys
Fluoroscopy of Bilateral Kidneys using Low Osmolar Contrast
Fluoroscopy of Bilateral Kidneys using Other Contrast