Question:
What do codes G0480-G0483 and G0659 represent for definitive test methods?
Answer:
The definitive test methods described by HCPCS G0480-G0483, and G0659 represent drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to GC/MS (any type, single or tandem) and LC/MS (any type, single or tandem).