Dexa Scan denied due to quantity / dose limits by Medicare?

Medicare's specific coverage criteria for dexa scan 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 Medicare Denies a DEXA Scan for Quantity Limits

Medicare's coverage of bone density measurement includes frequency parameters — the service is covered at defined intervals, and claims submitted before the next covered interval is reached will be denied on quantity-limit grounds. This is one of the most common DEXA denial types and is also one of the most frequently overturnable, because Medicare's own Coverage Determinations include exceptions that allow more frequent measurement when clinical circumstances justify it.

## Why This Denial Is Appealable

The standard coverage interval is not absolute. Medicare's National and Local Coverage Determinations identify clinical situations in which monitoring more frequently is medically reasonable and necessary — for example, following a change in treatment for a condition affecting bone density, or when a clinical reassessment requires updated baseline data. If your patient has experienced a qualifying clinical change, the frequency limitation can be overcome with proper documentation.

## Federal Appeal Framework

• Traditional Medicare: Redetermination within 120 days of denial → QIC Reconsideration within 180 days → ALJ Hearing → Medicare Appeals Council → Federal Court.
• Medicare Advantage: internal appeal (standard 60-day or expedited) → ACA §2719 external review by an Independent Review Organization if internal appeal is denied.
• Expedited review is available when delay would seriously jeopardize health.
• Retain all documentation; each appeal level reviews the full record.

## Concrete Appeal Steps

1. Obtain the denial notice and confirm the date of the most recent prior DEXA scan on file with Medicare. 2. Pull the applicable Medicare NCD or LCD from cms.gov and identify the standard frequency parameter and any listed exceptions. 3. Review the patient's chart for any clinical development since the last scan that falls within a recognized exception — for example, initiation or discontinuation of a medication affecting bone density, a new fracture, a change in underlying condition status, or a clinical decision point requiring updated data. 4. Obtain a detailed letter from the ordering provider documenting the clinical change and explaining why a new scan is medically necessary now rather than at the standard interval. 5. Submit the appeal with the provider letter, supporting chart notes, and the NCD/LCD text with the applicable exception highlighted.

## Documentation Checklist

• Date of most recent prior DEXA scan and result
• Ordering provider's letter explaining the clinical basis for early re-measurement
• Chart notes documenting the qualifying clinical change (with dates)
• Medication history showing any relevant start, stop, or dose change (dates only, no specific dose values in the appeal summary)
• Printout of the applicable NCD/LCD with frequency exceptions highlighted

## Criteria-Mapping Structure

For each frequency exception listed in the NCD/LCD, note whether it applies to your patient and cite the specific chart fact that establishes it. If multiple exceptions could apply, document all of them. The clearer the mapping between the exception criteria and the chart, the stronger the appeal.