Appeal Letter for a “Not Medically Necessary” Denial (Sample + What to Include)

Why People Look for an Appeal Letter Sample

When your claim is denied, many people want a letter template they can copy.

That makes sense—but a strong appeal usually needs more than a generic letter.

The best appeals directly address the denial reason and include supporting documentation.

Basic Appeal Letter Structure

A simple appeal letter often includes:

  1. A clear closing request for review
  2. Your identifying claim information
  3. The denied service and denial date
  4. A request for reconsideration
  5. Why the service was medically necessary
  6. Reference to supporting provider documentation

Sample Appeal Letter Language

I am requesting reconsideration of the denial for my claim, which was denied as “not medically necessary.” Based on my condition and provider recommendations, I believe the service was medically necessary. Please review the attached supporting documentation and reconsider this determination.

What Most People Miss

Many appeals fail because they include a letter—but not enough evidence.

Strong appeals usually also include:

  • Provider notes
  • Test results or records
  • Clinical reasoning
  • Direct responses to the denial reason

Appeals need to show new, stronger justification.

Before You Submit Your Appeal

Before you submit your appeal, make sure you’re not missing something that could lead to another denial.

Many appeals fail because people focus only on the letter instead of fixing the real evidence gaps.

The Starter Kit includes a Denial Decoder to help you understand why you were denied, plus Provider Request Scripts you can use to request stronger supporting documentation before you submit anything.

Additional Appeal Resources