Cgm Dexcom denied due to quantity / dose limits by Humana?

Humana's specific coverage criteria for cgm dexcom 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 Humana Applies Quantity Limits to Dexcom CGM

Humana's coverage policy for the Dexcom CGM system typically includes quantity limits — restrictions on how many sensors, transmitters, or receivers are covered within a given time period. A quantity-limit denial means your prescription or claim exceeded those limits. This type of denial is not a judgment that CGM is inappropriate for you; it is an administrative cap. It is appealable when your prescriber can document a clinical reason that the standard quantity is insufficient for safe management of your condition.

## Why This Denial Is Appealable

ACA §2719 requires non-grandfathered plans to provide internal appeals and access to independent external review. ERISA §503 requires full-and-fair review for employer plans. You have approximately 180 days from the denial to file an internal appeal and approximately four months from the final internal denial to request external review. Expedited review is available when a delay would seriously jeopardize your health.

Many plans allow a quantity-limit exception when the prescriber documents that the standard quantity is clinically inadequate. This exception request may be filed alongside the formal appeal.

## The Appeal Process

1. Identify the exact limit applied. Request Humana's written rationale specifying which quantity limit was triggered and how many units were approved versus requested. 2. Request a quantity-limit exception from Humana through your provider, with clinical justification. 3. File a Level 1 internal appeal simultaneously, with full clinical documentation. 4. Escalate to Level 2 and then external review if earlier levels are upheld.

## Documentation to Gather

• Prescriber justification letter: Your physician should explain the clinical basis for the prescribed quantity — for example, documented sensor failures, skin tolerance issues requiring more frequent changes than the standard interval, or clinical circumstances requiring enhanced monitoring frequency — without asserting specific numeric thresholds.
• Dexcom FDA labeling: The labeling specifies the approved wear schedule; if the prescribed quantity is consistent with the approved use, document this explicitly.
• Utilization history: If you have previously used CGM under the covered quantity and experienced documented issues, include that history.
• Diagnosis and glycemic severity documentation: Chart notes supporting the clinical complexity that necessitates the requested quantity.

## Criteria-Mapping Structure

Obtain Humana's quantity-limit exception criteria from the plan documents or by calling member services. For each criterion, provide the specific clinical documentation that satisfies it. The most persuasive appeals on quantity limits present a clear clinical narrative — supported by chart dates and findings — explaining why the standard quantity is insufficient for this individual patient's safe glucose management.