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 CT1HYZ
Planar Nucl Med Imag Bladder & Ureter w Technetium 99m
Planar Nucl Med Imag Bladder & Ureter w Oth Radionuclide