HCPCS Code: G0477
Long Description: Drug test(s), presumptive, any number of drug classes; any number of devices or procedures, (e.g., immunoassay) capable of being read by direct optical observation only (e.g., dipsticks, cups, cards, cartridges), includes sample validation when performed, per date of service
Short Description: Drug test presump optical
Original information is taken from G0477 page