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 BT021Z
Plain Radiography of Left Kidney
Plain Radiography of Left Kidney using Low Osmolar Contrast
Plain Radiography of Left Kidney using High Osmolar Contrast
Plain Radiography of Left Kidney using Other Contrast