Diagnostic laboratory tests

Medicare Part B (Medical Insurance) covers medically necessary clinical diagnostic laboratory tests, when your doctor or provider orders them.

Your costs in Original Medicare

You usually pay nothing for Medicare-covered clinical diagnostic laboratory tests.

What it is

Diagnostic laboratory tests look for changes in your health and help your doctor diagnose or rule out a suspected illness or condition.

Things to know

Medicare also covers some preventive tests and screenings to help prevent or find a medical problem.