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.
In general, hCG will return to zero in women who miscarried very early in a pregnancy much sooner than someone who miscarried later in a pregnancy. The average time that it can take for hCG to disappear completely is between nine and 35 days, according to the American Association for Clinical Chemistry. For most women, hCG levels will probably fall to zero within about two weeks.