Npwt denied as not FDA-approved for this use by Aetna?

Aetna's specific coverage criteria for npwt 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 Denied NPWT as "Not FDA-Approved" — and Why You Can Appeal

Negative pressure wound therapy (NPWT) devices are FDA-cleared Class II medical devices, not drugs — so a "not FDA-approved" denial almost always reflects a coding or classification error, or the application of an outdated policy that conflates the device with a non-covered indication or configuration. Aetna's medical policies specify which wound types and clinical settings they consider covered; if your documentation didn't map directly to those criteria, the claim may have been auto-denied without clinical review.

This type of denial is frequently overturned on appeal because FDA clearance for the device category is a matter of public record and the prescribing clinician can document the specific indication.

## Your Federal Appeal Rights

• Internal appeal: Under ACA §2719 and ERISA §503, you have the right to a full-and-fair internal review. Submit within the timeframe stated in your denial letter (commonly 180 days).
• External review: After exhausting internal appeals — or if Aetna doesn't resolve within statutory deadlines — you may request an Independent Review Organization (IRO) external review. The external-review window is generally within approximately four months of the final internal denial.
• Expedited review: If the wound is deteriorating or delay risks serious harm, request expedited internal and external review simultaneously.

## Concrete Appeal Steps

1. Pull the exact denial reason code and Aetna's published clinical policy for wound care devices. 2. Obtain the FDA 510(k) clearance documentation for the specific NPWT device used — your DME supplier can provide this. 3. Have your wound care specialist or prescriber write a medical-necessity letter. 4. Submit a formal written internal appeal with all supporting documents.

## Documentation to Gather

• Wound diagnosis: ICD-10 code, wound type, size, depth, and duration documented in the chart.
• Prior treatment history: Conservative wound care attempted, dates of treatment, and documented failure or inadequate response.
• Clinical severity: Wound assessment scores, photos if available, and any infection or complication notes.
• Device information: FDA clearance number and device classification for the specific NPWT unit.
• Prescriber medical-necessity letter: Should explain why NPWT is medically necessary for this specific wound at this time.

## Criteria-Mapping Structure

Pull Aetna's current clinical policy for wound care and NPWT. List every requirement. For each one, cite the exact chart entry that satisfies it — diagnosis code, treatment date, clinician note. If the denial was truly a classification error (device vs. drug), state that explicitly and attach the FDA clearance documentation as Exhibit A.

Consult the device's FDA-cleared labeling and Aetna's own published medical policy to confirm your documentation addresses every stated criterion.