Appeals & Disputes
Gathering Evidence for Your Appeal
5 min read 1 views May 25, 2026
Building Your Case
The strength of your appeal depends on the evidence you provide. Gathering the right documentation before you write your appeal letter significantly improves your chances of success.
Essential Documents
From Your Insurance Company
Denial Letter
- Keep the original denial
- Note the reason codes
- Identify the specific basis for denial
- Check appeal instructions and deadlines
Explanation of Benefits (EOB)
- Shows how claim was processed
- Details what was covered/not covered
- Indicates amounts paid and owed
- Reference for specific claim numbers
Policy Documents
- Summary of Benefits and Coverage (SBC)
- Evidence of Coverage (EOC)
- Plan Document (for employer plans)
- Any amendments or updates
From Your Healthcare Provider
Medical Records
- Office visit notes
- Test results and reports
- Procedure notes
- Hospital admission/discharge records
Letter of Medical Necessity
- Written by your treating physician
- Explains why service was needed
- Addresses specific denial reasons
- Cites clinical guidelines
Prior Authorization
- Authorization number
- Date authorization was given
- What was authorized
- Any conditions attached
Billing Records
- Itemized statement
- CPT and ICD-10 codes used
- Dates of service
- Charges and amounts
Additional Supporting Evidence
Clinical Guidelines
- Medical society recommendations
- Treatment protocols
- FDA approvals
- Peer-reviewed studies
Coverage Precedents
- Previous approvals for similar services
- EOBs showing past coverage
- Policy changes if relevant
Personal Documentation
- Your own notes about symptoms/treatment
- Calendar entries for appointments
- Communication records
- Photos if relevant to treatment
How to Request Records
Medical Records
Contact the provider's medical records department:
- Submit written request (HIPAA form)
- Specify exactly what you need
- Request expedited processing if urgent
- May involve a fee ($25-50 typical)
Insurance Documents
Request from member services:
- Ask for specific policy language
- Request claim processing history
- Get copies of any prior authorizations
- Obtain internal notes if available
Organizing Your Evidence
Create an Evidence Packet
Section 1: Appeal Letter
- Your written appeal
- Summary of your case
Section 2: Denial Information
- Original denial letter
- EOB showing the denied claim
- Any prior denial letters
Section 3: Policy Evidence
- Relevant policy sections highlighted
- Coverage provisions that support your case
- Definitions that help your argument
Section 4: Medical Evidence
- Medical records (most relevant portions)
- Letter of medical necessity
- Test results supporting need
- Clinical guidelines
Section 5: Additional Support
- Prior authorization documentation
- Previous approvals for similar services
- Published medical literature
Tips for Organization
- Use tabs or clear separators
- Number pages for reference
- Create a table of contents
- Highlight key passages
What Makes Evidence Strong
Specific and Relevant
- Directly addresses denial reason
- References specific policy language
- Shows clear connection to your case
From Authoritative Sources
- Medical records from treating physicians
- Published clinical guidelines
- Official policy documents
Complete but Concise
- Include everything relevant
- Don't pad with irrelevant material
- Highlight key information
Current and Accurate
- Recent medical records
- Current policy versions
- Correct codes and dates
Common Evidence Gaps
What's Often Missing
- Specific policy language (not just plan name)
- Detailed medical records (not just diagnosis)
- Physician's explanation of necessity
- Prior authorization proof
How to Fill Gaps
- Request additional records
- Ask doctor for letter of necessity
- Search policy document for relevant sections
- Contact provider for authorization confirmation
Checklist Before Submitting
- Appeal letter is clear and complete
- Denial letter is attached
- Relevant EOBs are included
- Policy language is cited and attached
- Medical records support necessity
- Physician letter of necessity included
- Prior authorization documented
- All pages numbered
- Table of contents created
- Copies made for your records
Keep Copies
Always maintain:
- Complete copy of everything submitted
- Proof of delivery (certified mail, fax confirmation)
- Record of submission date
- Notes of any phone conversations
Your evidence tells your story. Make it complete, organized, and compelling.