Artificial Disc Replacement denied due to quantity / dose limits by Humana?

Humana's specific coverage criteria for artificial disc replacement 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 Denies Artificial Disc Replacement on Quantity-Limit Grounds

For surgical procedures and implantable devices, a quantity-limit denial typically means Humana's coverage policy restricts ADR to a specified number of disc levels or a single lifetime procedure, and the proposed surgery exceeds that limit. Multi-level ADR — replacing more than one disc in a single surgery — is the most common scenario triggering this denial. Some policies also restrict the total number of spinal surgical procedures covered over a defined period.

## Why This Denial Is Appealable

Quantity-limit restrictions on surgical procedures are subject to medical-necessity exception. If the treating surgeon can document why the multi-level or repeat procedure is individually necessary for this patient — based on the patient's specific anatomy, disease pattern, functional deficits, and lack of adequate response to alternatives — the limit can be challenged. The appeal must show that the quantity restriction, as applied to this patient, produces a clinically inappropriate outcome.

## Your Federal Appeal Rights

• Internal appeal: ACA §2719 and ERISA §503 require a full-and-fair internal review. The denial notice must cite the specific policy provision and the clinical reason the limit applies to this case.
• External review: Available following a final internal denial. The general external-review window is approximately four months. An IRO will assess whether the quantity limitation was applied correctly and whether a medical-necessity exception is warranted.
• Expedited review: Available when clinical delay would seriously jeopardize health or ability to function.

## Documentation to Gather

1. Surgical-level justification — imaging (MRI, CT) for each disc level proposed for replacement, with separate radiology interpretations confirming the pathology at each level. 2. Surgeon's clinical rationale for each level — a detailed letter explaining why each level requires replacement (not fusion or observation), referencing the functional and neurological deficits attributable to each level. 3. Functional-status documentation — objective measures from the clinical record showing how multi-level disease affects the patient's daily function and quality of life. 4. Conservative-treatment history per level — documentation that non-surgical treatment targeted each affected level and was insufficient. 5. Guideline organization support — a reference to the position of the applicable spine-surgery guideline organization (without quoting specific thresholds) on multi-level ADR candidacy.

## Criteria-Mapping Structure

Obtain Humana's current coverage policy and identify the exact quantity limit applied. For each disc level beyond the covered limit, prepare a separate criteria-mapping table documenting the pathology, conservative-treatment attempts, and functional impairment. Present the tables side-by-side with the policy language to make clear that each level independently meets the medical-necessity standard.