The Radionuclide Iodine 131 (I is identified by letter "G" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to CW13G
Planar Nuclear Medicine Imaging of Chest using Iodine 123
Planar Nuclear Medicine Imaging of Chest using Thallium 201
Planar Nucl Med Imag of Chest using Technetium 99m
Planar Nucl Med Imag of Chest using Oth Radionuclide
Planar Nuclear Medicine Imaging of Chest using Gallium 67
Planar Nuclear Medicine Imaging of Chest using Iodine 131
Planar Nuclear Medicine Imaging of Chest using Indium 111
Planar Nuclear Medicine Imaging of Chest using Fluorine 18