Npwt denied due to quantity / dose limits 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 for "Quantity Limits" — and Why It's Appealable

Aetna applies quantity and duration limits to negative pressure wound therapy (NPWT), typically tied to wound type, care setting, and expected healing trajectory. A quantity-limit denial usually means the approved number of rental days, canisters, or dressing changes has been exhausted, and the renewal request didn't include sufficient clinical justification for continued use. These denials are routinely overturned when the medical record clearly documents that the wound has not yet healed and that continued NPWT remains medically necessary.

## Your Federal Appeal Rights

• Internal appeal (ACA §2719 / ERISA §503): You are entitled to a full-and-fair review. Submit within the timeframe on your denial notice.
• Concurrent review: If NPWT is ongoing, request concurrent authorization for continued use while appealing the denial.
• External review: Available after internal remedies are exhausted, typically within approximately four months of a final adverse determination.
• Expedited review: Request this track if stopping NPWT would pose imminent risk of wound deterioration or infection.

## Concrete Appeal Steps

1. Obtain Aetna's published quantity-limit policy for NPWT, including any criteria for extended-use exceptions. 2. Have the treating wound care provider prepare a continuation-of-therapy letter documenting current wound status. 3. Include objective wound measurements — size, depth, exudate — from the most recent visit. 4. Submit a formal internal appeal with the clinical narrative and supporting documentation.

## Documentation to Gather

• Current wound assessment: Objective measurements, wound photos if available, and assessment from the most recent clinical encounter.
• Healing trajectory notes: Chart documentation showing wound response to NPWT over time — why additional time is needed.
• Prior treatment history: Documentation of what was attempted before NPWT and why continuation is preferable to reverting to prior methods.
• Clinical severity: Any complications, infection risk, or comorbidities that slow healing and justify extended therapy.
• Prescriber continuation letter: A letter from the wound care provider explaining why the quantity limit is medically insufficient for this patient.

## Criteria-Mapping Structure

Review Aetna's published policy for NPWT extended-use or continuation criteria. For each criterion, provide the chart evidence: wound dimensions on [date], exudate character on [date], clinician's assessment of healing status on [date]. A clear before-and-after progression narrative, paired with objective measurements, is the most persuasive argument for a quantity-limit override. Reference the applicable wound care guideline organization generically (e.g., the applicable wound care society guideline) to support the clinical standard of care for wounds of this type.