Appeal — TEST-CLAIM-00065

Date: [Insert Submission Date]

To: Synthetic Aetna Appeals Department
Re: Formal Appeal of Medical Necessity Denial
Claim Number: TEST-CLAIM-00065
Internal Claim Reference: ed6edade-57d5-4c69-8b41-7a795aaec076
Service Date: January 5, 2026
Denial Date: January 22, 2026
Denied Amount: $1,047.22
Appeal Deadline: July 21, 2026

Dear Synthetic Aetna Appeals Review Team,

This letter constitutes a formal first-level appeal on behalf of our facility regarding the denial of Claim TEST-CLAIM-00065, issued on January 22, 2026. The claim was denied under CO-50, citing that the billed services were not deemed medically necessary by the payer. We respectfully contest this determination and request that the claim be overturned, reprocessed, and paid in full for the denied amount of $1,047.22.

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I. BACKGROUND AND STATEMENT OF DENIAL

On January 5, 2026, our facility rendered services billed under the following procedure codes: CPT 52437 (cystourethroscopy with resection), CPT 12068 (repair of surgical wound), and CPT 32838 (lung resection). The claim was submitted in association with diagnoses M17.16 (unilateral primary osteoarthritis of the knee) and S82.67 (fracture of the tibia and fibula). The total billed amount was $1,229.27, of which $1,047.22 was denied.

Synthetic Aetna issued a blanket CO-50 denial without specific clinical rationale articulating which elements of the claim failed to meet medical necessity criteria, or under which specific policy provisions the denial was rendered. A blanket denial of this nature, unsupported by a detailed clinical rationale, does not satisfy the payer's obligation to provide a meaningful basis for denial and does not adequately account for the clinical documentation supporting these services.

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II. BASIS FOR APPEAL

A. The Billed Services Were Medically Necessary and Clinically Indicated

The procedures performed on January 5, 2026 were ordered and performed by the treating physician based on the clinical presentation, diagnostic findings, and medical judgment documented in the patient's medical record. The enclosed letter of medical necessity from the treating physician details the clinical rationale for each procedure performed and affirms that the services were appropriate, indicated, and necessary given the patient's condition at the time of service.

The enclosed clinical progress notes from the service date further corroborate the clinical decision-making process, document the patient's presenting condition, and support the appropriateness of the procedures performed. The enclosed operative report provides a detailed account of the procedures executed, confirming that they were carried out in accordance with accepted medical standards.

B. Peer-Reviewed Clinical Guidelines Support Medical Necessity

The enclosed peer-reviewed clinical guidelines demonstrate that the procedures billed are consistent with established standards of care for the documented clinical indications. These guidelines affirm that the level of intervention undertaken was appropriate given the patient's diagnoses and clinical course. A blanket CO-50 denial that does not engage with or rebut these guidelines is insufficient as a basis for non-payment.

C. Diagnostic and Historical Documentation Further Substantiates Clinical Indication

The enclosed imaging and diagnostic reports confirm the clinical findings that necessitated the procedures performed. The enclosed patient medical history and comorbidity documentation provides additional context demonstrating the complexity of the patient's condition and the medical rationale underlying each clinical decision made on the service date. The enclosed documentation of prior treatment attempts, where applicable, further supports that the procedures were not elective or premature, but rather appropriate and necessary given the patient's clinical trajectory.

D. Potential Coding and Diagnosis Alignment Should Be Considered Prior to Any Final Determination

We wish to draw the reviewer's attention to the relationship between the procedure codes billed and the diagnoses on file. Should the payer's denial be based in part on a perceived misalignment between the procedures performed (CPT 52437, 12068, 32838) and the diagnoses submitted (M17.16, S82.67), we respectfully request that the reviewer consider this in the context of the complete clinical documentation enclosed herewith. The operative report, progress notes, and letter of medical necessity collectively clarify the clinical circumstances of the encounter and the full scope of the patient's condition. If the reviewer identifies a documentation or coding alignment issue, we request that this be communicated specifically so that any necessary clarification or correction can be addressed prior to a final determination, rather than serving as an undisclosed basis for denial.

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III. POLICY BASIS FOR APPEAL

Synthetic Aetna's medical necessity criteria require that covered services be clinically appropriate, consistent with the patient's diagnosis and condition, and supported by evidence-based standards of care. The clinical record as a whole — including the enclosed letter of medical necessity, progress notes, operative report, diagnostic reports, peer-reviewed guidelines, and medical history — collectively satisfies these criteria. The payer's CO-50 denial does not identify a specific policy provision or clinical finding that the submitted services failed to meet, and therefore cannot be sustained against the weight of the clinical evidence presented herein.

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IV. REQUESTED REMEDY

Based on the foregoing, we respectfully request that Synthetic Aetna:

1. Overturn the CO-50 medical necessity denial issued on January 22, 2026 for Claim TEST-CLAIM-00065;
2. Reprocess the claim in full accordance with the applicable plan benefits; and
3. Issue payment of the denied amount of $1,047.22 to the facility.

If the reviewer requires additional clinical documentation or clarification of any specific element of the claim, we welcome the opportunity to provide supplemental information and request that such needs be communicated in writing at the earliest opportunity so as not to prejudice the appeal timeline.

We trust that a thorough review of the enclosed documentation will support a favorable determination. Thank you for your prompt and careful attention to this matter.

Respectfully submitted,

[Authorized Facility Representative Name]
[Title]
[Facility Name]
[Facility Address]
[Facility NPI]
[Contact Phone Number]
[Contact Email Address]

Enclosures:
- Letter of medical necessity from treating physician
- Clinical progress notes from service date (January 5, 2026)
- Operative report
- Peer-reviewed clinical guidelines supporting medical necessity
- Imaging and diagnostic reports supporting clinical indication
- Documentation of prior treatment attempts (if applicable)
- Patient medical history and comorbidity documentation