PSG In Lab denied as not FDA-approved for this use by Aetna?

Aetna's specific coverage criteria for psg in lab are defined in its own published medical/coverage policy and the FDA-approved prescribing label. A successful appeal documents that your medical records satisfy each criterion those sources list — confirmed diagnosis, any required prior treatments (with dates and outcomes), and clinical severity. If the exact criteria weren't included with your denial, request them in writing; your appeal then maps each requirement to the matching fact in your chart.

## Why Aetna Issues a "Not FDA-Approved" Denial for In-Lab PSG

In-lab polysomnography is a diagnostic procedure, not a drug or device requiring FDA drug-approval. A "not FDA-approved" denial for PSG is almost always a coding or administrative mismatch — the claim may have been submitted under a code Aetna's system flagged as investigational or non-covered, or the denial reason may have been applied from a template that does not fit the service. This type of denial is highly likely to be resolved on appeal.

If Aetna is asserting that specific equipment or recording hardware used during the study is not FDA-cleared, that is a separate and narrow argument — and the facility or provider can typically supply device clearance documentation quickly.

## Your Federal Appeal Rights

• Internal appeal: Under ACA §2719 and ERISA §503, you have the right to a full written explanation of exactly what FDA-approval determination was applied and why. If the denial reason does not fit the service, the internal review should correct it.
• External review: If the internal appeal does not resolve the denial, independent external review is available, typically within approximately four months of final internal denial.
• Expedited track: Available for urgent clinical situations.

## Documentation to Gather

1. Claim and remittance data — confirm the exact procedure code(s) submitted and the specific denial reason code Aetna used. A coding mismatch is often the root cause. 2. Facility documentation — ask the sleep lab to confirm that all recording equipment is FDA-cleared and provide documentation if needed. 3. Physician letter — your ordering physician should state that in-lab PSG is an established, guideline-supported diagnostic procedure and not an investigational or experimental service. 4. AASM and CMS recognition — your physician may note that attended PSG is recognized by the American Academy of Sleep Medicine and covered by Medicare/Medicaid as a standard diagnostic service.

## Criteria-Mapping Structure

Request Aetna's written articulation of exactly what "not FDA-approved" means in the context of this denial:

| Aetna's Stated Basis | Your Rebuttal and Evidence | |---|---| | [Paste the exact denial language] | [Cite the facility's equipment clearance, AASM recognition, and CMS coverage as applicable] |

## Next Step

Contact Aetna's provider relations or appeals unit before filing a formal appeal to confirm whether this denial is a coding error or a substantive determination. Many denials with misapplied reason codes are correctable through a simple resubmission or peer-to-peer call, which preserves your formal appeal rights for any remaining dispute.