Are you on Medicare yet? This is from the Medicare.gov website:
"Medicare Part B (Medical Insurance) covers this test once every 24 months (or more often if medically necessary) if you meet one or more of these conditions:
You’re a woman whose doctor determines you’re estrogen-deficient and at risk for osteoporosis, based on your medical history and other findings.
Your X-rays show possible osteoporosis, osteopenia, or vertebral fractures.
You’re taking prednisone or steroid-type drugs or are planning to begin this treatment.
You’ve been diagnosed with primary hyperparathyroidism.
You’re being monitored to see if your osteoporosis drug therapy is working."