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 BT06Z
Plain Radiography of Right Ureter
Plain Radiography of Right Ureter using H Osm Contrast
Plain Radiography of Right Ureter using Low Osmolar Contrast
Plain Radiography of Right Ureter using Other Contrast