Auto PIP/MedPay CO-50 Medical Necessity Appeal

[Practice Letterhead]
[Date]

Auto Insurance Provider Appeals Department
[Address from EOB]

Re: Formal Appeal of CO-50 Denial
Member: [Patient Name]
Member ID: [Member ID]
Date of Service: [DOS]
Claim Number: [Claim #]
CPT: [CPT code with description]

To Whom It May Concern:

We are formally appealing the CO-50 denial (non-covered / not medically necessary) on the above-referenced claim. The service was medically necessary and supported by clinical documentation meeting Auto Insurance's coverage criteria.

Clinical Indication:
[Patient], [age] y/o with [diagnosis, ICD-10], presented with [specific symptoms / clinical findings with documented dates]. Prior workup included [relevant prior testing, treatments, consultations]. The ordering provider determined [service] was clinically indicated based on [specific clinical reasoning].

Documentation attached:
1. Ordering provider's History and Physical
2. Prior diagnostic results supporting the order
3. Clinical rationale documented in the operative / procedure note
4. Auto Insurance medical policy excerpt demonstrating criteria met
5. [Any prior treatment history or conservative-care documentation]

We respectfully request that the denial be reversed and the claim reprocessed for payment. If the appeal requires additional clinical discussion, [Dr. Name], the treating physician, is available for peer-to-peer review at [phone / email].

Thank you for your consideration.

Sincerely,
[Name, title]
[Practice Name]
[NPI, TIN]
[Contact phone and email]