The Radionuclide Cobalt 57 (Co is identified by letter "C" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to C763C
Nonimaging Nuclear Medicine Assay of Blood using Chromium
Nonimag Nucl Med Assay of Blood using Technetium 99m
Nonimag Nucl Med Assay of Blood using Oth Radionuclide
Nonimaging Nuclear Medicine Assay of Blood using Cobalt 58
Nonimaging Nuclear Medicine Assay of Blood using Indium 111
Nonimaging Nuclear Medicine Assay of Blood using Iodine 125
Nonimaging Nuclear Medicine Assay of Blood using Cobalt 57