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 CB229Z
Tomo Nucl Med Imag of Lungs & Bronchi using Krypton
Tomo Nucl Med Imag of Lungs & Bronchi using Oth Radionuclide
Tomo Nucl Med Imag of Lungs & Bronchi using Technetium 99m