Diagnostic laboratory tests

Is my test, item, or service covered?

Diagnostic laboratory tests

Medicare Part B (Medical Insurance)

covers medically necessary clinical diagnostic laboratory tests, when your doctor or practitioner orders them.

Your costs in Original Medicare

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

What it is

Tests done to 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, find, or manage a medical problem.

Return to search results

Find someone to talk to

Find someone to talk to in your state

Try the "What's covered" mobile app!

Your Privacy Options

We take your privacy seriously. You can change the settings below to make sure you're comfortable with the ways we collect and use information while you're on Medicare.gov. For more information, please see our privacy notice.

Category	Description	Status
Advertising	We use digital advertising tools, such as web beacons, to track the effectiveness of our digital advertising outreach efforts. This helps us identify ads that are helpful to consumers and efficient for outreach. Selecting OFF will block this tracking.	On Off
Social Media	If you share our content on Facebook, Twitter, or other social media accounts, we may track what Medicare.gov content you share. This helps us improve our social media outreach. Selecting OFF will block this tracking.	On Off
Web Analytics	We use a variety of tools to count, track, and analyze visits to Medicare.gov. This helps us understand how people use the site and where we should make improvements. Selecting OFF will block this tracking.	On Off

Main Menu

Diagnostic laboratory tests

Diagnostic laboratory tests

Sign up for email updates about Medicare