@prarysky Yes. I meant that how would Medicare know if you're taking medication for osteoporosis in order to decide whether or not to cover the CTX blood test? I don't see how they would. The blood tests are going to be accompanied by a doctor's prescription and diagnosis. That is all the lab has to go on. Assuming the doctor has coded it correctly, I don't see any issue with Medicare covering the test.

@prarysky You are correct. It is covered by Part B if medically necessary.