What restrictions might apply to the performance of anatomic localization of a PET or SPECT scan?
It may not be appropriate to bill for anatomic localization when the PET scan is normal and there is no evidence of a metabolic lesion that needs anatomic correlation. If a complete CT scan was not specifically ordered, and CT is performed for localization purposes only, it is appropriate to code for the functional study (PET or SPECT) and for the fusion imaging (78999), but not for the CT study.