HCPCS Code: G0479
Long Description: Drug test(s), presumptive, any number of drug classes; any number of devices or procedures by instrumented chemistry analyzers utilizing immunoassay, enzyme assay, tof, maldi, ldtd, desi, dart, ghpc, gc mass spectrometry), includes sample validation when performed, per date of service
Short Description: Drug test presump not opt
Original information is taken from G0479 page