Sample Appeal Letter to Insurance Company for Medical Necessity

With extensive experience in crafting effective medical necessity appeal letters, I’m sharing a step-by-step guide and template to empower others to navigate healthcare insurance appeals successfully.

Key Takeaways

  • Understanding Insurance Denials: Recognize why insurance companies deny claims and the importance of their policies on medical necessity.
  • Gathering Documentation: The significance of accumulating all necessary medical records, doctor’s notes, and any relevant medical literature.
  • Free TemplateUtilize the provided template to simplify the process.
  • Following Up: Strategies for persistent yet professional follow-up with your insurance company.
  • Seeking External Support: When and how to seek help from healthcare advocates or legal assistance.

Step 1: Understand the Denial

Start by thoroughly reviewing the denial letter from your insurance company. It’s crucial to understand their reasoning, as it will guide your appeal. 

Most denials for medical necessity are based on the insurer’s assessment that the treatment is not essential or could be substituted with a less expensive alternative. 

Tip: Always request a detailed explanation of the denial if the letter doesn’t provide one.

Trending Now: Find Out Why!

Step 2: Gather Your Documentation

Documentation is your best ally. Compile all relevant medical records, doctor’s notes, and any related research or articles that support the necessity of the treatment. 

Personal Experience: In one case, including excerpts from medical journals about the effectiveness of a denied treatment significantly strengthened the appeal.

  • Medical Records: Dates of visits, treatments received, and medical history.
  • Doctor’s Notes: Specific statements on why the treatment is considered necessary.
  • Supporting Literature: Studies or articles that underline the necessity and effectiveness of the treatment.

Step 3: Write the Appeal Letter

The appeal letter should be clear, concise, and structured, emphasizing the medical necessity of the treatment. Start with your personal information and policy number, followed by a detailed account of your medical history and treatment plan. 

Real-Life Example: I once highlighted a client’s prolonged and unsuccessful history with alternative treatments to underscore the necessity of the denied procedure.

Appeal Letter Template

[Your Name]
[Your Address]
[City, State, Zip]

[Insurance Company Name]
[Claims Department]
[Company Address]
[City, State, Zip]

Re: [Your Policy Number] – Appeal for [Name of Treatment/Service] Denied on [Date of Denial]

Dear Claims Department,

I am writing to formally appeal the recent denial of coverage for [Name of Treatment/Service]. Based on my understanding, the denial was primarily due to [brief reason for denial provided by the insurance]. 

However, I believe this decision overlooks the essential nature of the treatment in question, as evidenced by my medical history and supporting documentation enclosed with this letter.

[Paragraph detailing your medical history, the necessity of the treatment, and any previous treatments attempted]

[Paragraph explaining the medical rationale behind the treatment, supported by doctor’s notes and relevant medical literature]

I respectfully request a thorough review of my appeal and reconsideration of the decision to deny coverage for [Name of Treatment/Service]. Enclosed are copies of all relevant medical records, letters from my healthcare providers, and supportive literature that substantiate the medical necessity of this treatment.

Thank you for your attention to this matter. I look forward to your prompt response.


[Your Name]
Enclosures: [List of documents enclosed]

Step 4: Submit Your Appeal

Once your letter is ready, submit it along with all the supporting documentation to the address provided by your insurance for appeals. Ensure to send it via certified mail to receive a confirmation of receipt.

Step 5: Follow Up

Don’t hesitate to follow up if you don’t hear back within the timeframe provided by your insurance. Keeping a polite yet assertive communication line open can be crucial.

Seeking External Support

If your appeal is denied, consider seeking external support. Patient advocacy groups and legal advisors specializing in healthcare can offer invaluable assistance.

Tips from Personal Experience

  • Be Thorough: The more detailed your letter and supporting documentation, the better.
  • Stay Organized: Keep copies of all communications and documents related to your appeal.
  • Be Persistent: Some appeals take time and multiple letters. Don’t give up after the first try.


Writing an appeal letter to an insurance company for medical necessity can be daunting, but it’s not insurmountable. With the right approach, detailed documentation, and a clear, concise appeal letter, you can significantly increase your chances of success. 

Remember, you’re advocating for your health and well-being—a cause well worth fighting for.

I’d love to hear about your experiences or any additional tips you might have. Have you successfully appealed an insurance company’s decision? What strategies worked best for you? 

Share your stories and suggestions in the comments below. Your insights could greatly assist others in their journey towards securing the necessary medical treatments

Leave a Comment

Your email address will not be published. Required fields are marked *