IVIG Privigen denied for missing prior authorization by UnitedHealthcare?

UnitedHealthcare's specific coverage criteria for ivig privigen 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 UnitedHealthcare Requires Prior Authorization for Privigen — and What to Do

Privigen (immune globulin intravenous, 10%) is a specialty biologic that UnitedHealthcare classifies as requiring prior authorization (PA) before coverage is approved. A prior-auth-required denial means that Privigen was administered or prescribed without first obtaining UHC's advance approval, or that a PA request was submitted but denied for clinical reasons. Prior-authorization requirements for IVIG products like Privigen are standard across commercial insurers due to the cost and clinical complexity of the therapy.

## Why This Denial Is Appealable

If Privigen was administered before PA was obtained due to urgent clinical need, you can request a retroactive authorization review and explain the clinical circumstances. If a PA was submitted and denied on clinical grounds, the denial letter must identify the specific clinical criteria not met — and those are exactly the grounds for your appeal. PA denials for clinically appropriate, FDA-indicated therapies are routinely overturned when the medical record is complete and well-organized.

## Federal Appeal Framework

• ERISA §503 (employer plans): Guarantees a full-and-fair review including access to all PA criteria UHC applied.
• ACA §2719 / State external review: Available after internal levels are exhausted; particularly effective for PA denials where UHC's criteria do not align with current clinical guidelines. Act within approximately four months of your denial notice.
• Expedited review: If you are currently mid-treatment or have an infusion scheduled imminently, request expedited review at every level — timelines can compress significantly.

## Your Appeal Process

1. If PA was never submitted: contact UHC immediately to initiate a PA request or retroactive review before filing a formal appeal. 2. If PA was denied: obtain the denial letter identifying the specific clinical criteria cited. 3. File a Level 1 internal appeal with a complete documentation package within your plan's deadline. 4. If denied internally, proceed to Level 2 (if available) and then external review.

## Documentation to Gather

• Diagnosis confirmation: Specialist notes, diagnostic workup, and objective test results establishing your FDA-recognized indication for Privigen.
• Clinical severity documentation: Chart evidence showing the degree of impairment or disease activity that supports Privigen use — relevant functional assessments, laboratory findings, and clinician observations.
• Prior-treatment history: Documentation of any alternative therapies tried before Privigen, including dates, duration, and clinical outcomes, satisfying any step-therapy requirements in UHC's PA criteria.
• Prescriber medical-necessity letter: A detailed, individualized letter from your specialist addressing UHC's PA criteria point by point and explaining why Privigen is medically necessary for your case.
• Urgency documentation (if retroactive): If PA was not obtained in advance due to clinical urgency, include records documenting the emergent or urgent nature of the situation.

## Criteria-Mapping Strategy

Obtain UHC's published prior-authorization criteria for Privigen/IVIG. Map every requirement in that policy to a specific piece of chart documentation. A table — PA criterion on the left, your evidence on the right — is the most effective format for a PA appeal. Ensure that your prescriber's letter addresses each criterion explicitly so the reviewer does not have to search for the connection.