Reader Questions:
Wa(i)ve Goodbye to This Modifier for PTH Testing
Published on Tue Aug 18, 2020
Question: Medicare has repeatedly denied our claim for 83970 due to modifier QW. Is this the wrong modifier? Codify Subscriber Answer: HCPCS modifier QW (CLIA waived test) is an informational modifier used on lab tests that are deemed to be simple tests with a low risk for an incorrect result. A test “might meet the statutory criteria for CLIA waiver [...]