Effective April 1, 2011, code G0431QW is deleted from the Clinical Laboratory Fee Schedule (CLFS). Code G0431 describes a high complexity test, and should not be reported with a QW modifier; the QW modifier indicates a Clinical Laboratory Improvement Amendments (CLIA) waived test.
If this occurs with insemination or intercourse that is timed correctly, the egg may become fertilized. It is important to remember, however, that the hCG within the trigger shot will stay in your urine for 7 to 10 days so you may get a false positive on a home pregnancy test. Because of this, most doctors will wait at least two weeks to give you a blood test designed to test for hCG levels.
It is rare to get a false positive 16 days after egg retrieval (Ovidrel or hCG from your trigger shot can linger in the body for as long as 12 days). Your most reliable result will come from your Quantitative Beta test on the day your IVF nurse recommends.Testing before that day can result in a worrisome low level.t is rare to get a false positive 16 days after egg retrieval (Ovidrel or hCG from your trigger shot can linger in the body for as long as 12 days). Your most reliable result will come from your Quantitative Beta test on the day your IVF nurse recommends. Testing before that day can result in a worrisome low level.