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 CB129Z
Planar Nucl Med Imag Lungs & Bronchi w Oth Radionuclide
Planar Nucl Med Imag of Lungs & Bronchi using Xenon 133
Planar Nucl Med Imag of Lungs & Bronchi using Xenon 127
Planar Nucl Med Imag of Lungs & Bronchi using Technetium 99m
Planar Nucl Med Imag of Lungs & Bronchi using Krypton