Monoferric denied for failing step therapy by Aetna?

Aetna's specific coverage criteria for monoferric 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 Applies Step-Therapy Requirements to Monoferric

Monoferric (ferric derisomaltose) is an IV iron product. Aetna's step-therapy protocol for IV iron typically requires documentation that oral iron supplementation was tried first and was either ineffective, not tolerated, or is contraindicated before IV iron will be authorized. This is sometimes called a "fail-first" requirement. The denial arises when that documentation is absent from the authorization request or when Aetna's records do not reflect a qualifying oral iron trial.

## Why This Denial Is Appealable

Step-therapy denials are regularly overturned in two situations: (1) the patient did in fact complete the required oral iron step and the documentation simply was not included in the PA request, or (2) the patient has a clinical reason that makes the oral step medically inappropriate (e.g., malabsorption conditions, intolerance documented in prior records, inflammatory bowel disease, post-surgical anatomy that impairs absorption). Both grounds are recognized by Aetna's own step-therapy exception criteria. Many states also have enacted step-therapy protection laws that require insurers to grant exceptions when step-through is clinically inappropriate.

## Your Federal Appeal Rights

• Internal appeal (ERISA §503 / ACA §2719): File within the deadline on your denial notice. This is a full-and-fair review to which you are entitled as a matter of law.
• External review (ACA §2719): After an adverse internal decision, request independent external review. The review window is approximately 4 months from the final internal denial, and the external organization's decision is binding on Aetna.
• Expedited review: If your condition is urgent, request simultaneous expedited internal and external review; response required within 72 hours.

## Documentation to Gather

1. Oral iron trial record — dates, specific products tried, duration of each trial, and documented outcome (insufficient response, intolerance, adverse effect). 2. Clinical exception basis — if oral iron was never tried because it was contraindicated or clinically inappropriate, provide the chart notes and relevant diagnosis codes supporting that conclusion. 3. Absorptive or GI condition records — specialist notes or procedure records showing any condition that impairs oral iron absorption. 4. Prescriber step-therapy exception letter — a signed letter addressing each step-therapy requirement and explaining why the step has been satisfied or is clinically inappropriate. 5. Applicable guideline reference — your prescriber should reference the relevant professional society guidance (e.g., applicable gastroenterology or hematology society position) without citing specific numbers.

## Criteria-Mapping Structure

Request Aetna's step-therapy protocol for IV iron from their provider portal or medical management team. Each required step should be listed explicitly. In your appeal, address each step: either document completion (with dates and outcomes) or provide the clinical reason it was skipped. A one-to-one correspondence between policy requirements and chart documentation is the most persuasive format an appeal reviewer can act on quickly.