Key Takeaways
● Why would Medicare deny a test my doctor ordered?
● Does this mean I can’t get the MRI at all?
● Is this a permanent decision or can it be appealed?
● Should I consider changing my Medicare plan?
Why MRIs Are Commonly Denied
MRIs are high-cost diagnostic tests. Because of this, some Medicare plans use prior authorization rules to ensure the test meets specific criteria before it is approved.
A denial may occur when:
● Required documentation is missing
● Clinical guidelines are not clearly met
● A less intensive test is expected first
These denials are administrative, not personal.
How Medicare Coverage Type Affects MRI Approval
Not all Medicare coverage operates the same way. Some coverage types require prior authorization for advanced imaging, while others do not.
Understanding which type of coverage you have explains why two people with Medicare can have very different experiences with MRI approvals.
What a Denial Actually Means
An MRI denial usually means “not approved yet,” not
“never approved.”
In many cases, it signals that:
● Additional information is needed
● A different diagnostic step is expected first
● The request needs to be reviewed again
This distinction matters.
Options to Explore After an MRI Denial
Possible next steps may include:
● Having the provider submit additional clinical documentation
● Requesting a peer-to-peer review between physicians
● Filing a formal appeal
● Discussing alternative diagnostic tests
The right option depends on timing, urgency, and coverage rules.
Why Immediate Plan Changes Are Rarely the Answer
It’s natural to feel that a denial means the plan is wrong.
However:
● Plan changes are restricted by enrollment rules
● A new plan may have similar authorization requirements
● Denials are often resolvable within the current plan
Understanding the process usually leads to better outcomes than reacting quickly.
Q & A: MRI Denials and Medicare
Does Original Medicare require prior authorization for MRIs?
Generally no, though other rules still apply.
Do Medicare Advantage plans require prior authorization?
Often yes, particularly for advanced imaging.
Can MRI denials be appealed?
Yes. Appeals and reviews are commonly available.
Should I switch plans because of one denial?
Usually no. One denial alone is not a reason to change coverage.
A Calm Takeaway
An MRI denial feels alarming — but it is usually part of a review process, not a judgment about your care. Understanding how authorization works, and what options exist, helps people move forward with clarity instead of stress.
Medicare is complex, but most denials are procedural — and many are resolvable.