Linzess denied for missing prior authorization by Aetna?

Aetna's specific coverage criteria for linzess 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 Requires Prior Authorization for Linzess

Aetna requires prior authorization (PA) for Linzess (linaclotide) as a utilization-management tool. This is standard for branded GI prescription drugs. A denial labeled "prior-auth-required" most often means either that no PA was submitted before dispensing, or that a PA request was submitted but did not satisfy all of Aetna's clinical criteria. The denial does not mean Linzess is clinically inappropriate — it means the administrative and clinical criteria have not yet been documented to Aetna's satisfaction.

## Why This Denial Is Appealable

If the PA was denied on clinical grounds, you have full appeal rights. ACA §2719 provides access to external review by an Independent Review Organization for non-grandfathered plans. ERISA §503 provides full-and-fair review rights for employer-sponsored plans. You generally have 180 days from the denial notice to file an internal appeal. External review must be requested within approximately four months of exhausting internal appeals. An expedited (72-hour) review pathway is available when a delay would seriously jeopardize your health.

## The Concrete Appeal Process

1. Obtain the PA denial letter: confirm whether the denial is administrative (PA not submitted) or clinical (criteria not met). 2. If administrative: resubmit the PA with complete clinical documentation before appealing. 3. If clinical: file a formal internal appeal directly challenging the criteria determination. 4. Attach all supporting documentation (see below) to the appeal. 5. Request external IRO review if internal appeal is denied.

## Documentation to Gather

• Formal IBS-C or CIC diagnosis: physician chart notes with documented symptom history, duration, and severity measures.
• Prior-treatment history: a comprehensive list of all previously tried medications for this condition — names, dates of initiation and discontinuation, documented outcomes, and reasons for inadequacy. Dates are critical.
• Clinical severity documentation: chart entries describing functional impairment, quality-of-life impact, and any complications or urgent presentations.
• Prescriber's PA support letter: a letter that walks through each of Aetna's PA criteria (copied from the PA denial or Aetna's published Clinical Policy Bulletin) and answers each with the corresponding chart fact.
• Aetna's Clinical Policy Bulletin for Linzess: request this document — it lists every criterion PA reviewers use.

## Criteria-Mapping Structure

The most effective PA appeal mirrors Aetna's own criteria checklist. Obtain the Clinical Policy Bulletin, list each requirement, and for every requirement write one sentence citing the specific chart note, date, and clinical finding that satisfies it. If a criterion requires prior failure of a specific drug class, list each drug tried, the start and stop date, and the chart-documented outcome. Attach the supporting chart pages. This structure leaves no gap for reviewers to exploit.