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 CW13LZ
Planar Nuclear Medicine Imaging of Chest using Thallium 201
Planar Nuclear Medicine Imaging of Chest using Gallium 67
Planar Nuclear Medicine Imaging of Chest using Iodine 123
Planar Nuclear Medicine Imaging of Chest using Fluorine 18
Planar Nucl Med Imag of Chest using Oth Radionuclide
Planar Nucl Med Imag of Chest using Technetium 99m
Planar Nuclear Medicine Imaging of Chest using Indium 111
Planar Nuclear Medicine Imaging of Chest using Iodine 131