TMS denied for missing prior authorization by Aetna?

Aetna's specific coverage criteria for tms 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 TMS — and How to Appeal a Denial

Aetna requires prior authorization (prior approval) for transcranial magnetic stimulation (TMS) before treatment begins. A prior-authorization denial means that when your provider submitted the authorization request, Aetna's reviewer determined that the submitted documentation did not satisfy all of the clinical criteria in Aetna's coverage policy — or that required information was missing from the submission. This is not a finding that TMS is wrong for you clinically; it is an administrative determination that the paperwork did not make an adequate case.

## Why This Denial Is Appealable

Prior-authorization denials for TMS are among the most commonly reversed denial types in behavioral health because: (a) the original submission is often incomplete, (b) Aetna's criteria require specific documentation categories that primary-care or non-specialist offices may not routinely prepare, and (c) a well-organized appeal that directly maps chart evidence to each Aetna criterion has a high probability of approval. Do not assume the denial reflects a clinical judgment — treat it as a documentation deficiency to be corrected.

## Federal Appeal Framework

• Internal appeal (urgent/pre-service): File immediately — for pre-service denials, Aetna must decide within 30 days. Request expedited review if treatment delay would harm your health (72-hour decision).
• Standard internal appeal: Within 180 days of the denial notice.
• External review (ACA §2719 / ERISA §503): After exhausting internal appeals, request independent external review within approximately four months. External reviewers are not bound by Aetna's internal criteria interpretations.
• Concurrent resubmission: While appealing, your provider may simultaneously resubmit the prior-authorization request with the additional documentation — in some cases, a corrected submission resolves the denial faster than the formal appeal process.

## Documentation to Gather

1. Aetna's Clinical Policy Bulletin for TMS: Download it from Aetna.com before preparing any documentation — know exactly which criteria must be met. 2. Diagnosis confirmation: Current treating provider records with DSM or ICD diagnosis, onset history, and severity assessment. 3. Prior-treatment trial history with outcomes: For every medication, therapy, or other intervention Aetna's policy requires as prior steps, provide the name of the treatment, dates, duration, and documented clinical outcome or reason for discontinuation. This is typically the most common gap in the original submission. 4. Clinical severity documentation: Recent validated symptom assessments, clinical notes, and functional-impairment documentation. 5. Prescriber medical-necessity letter: A structured letter from the treating clinician that addresses Aetna's criteria sequentially, references the applicable specialty guideline organization, and explicitly states that TMS is medically necessary at this time.

## Criteria-Mapping Structure

Build a criteria table: (1) Aetna Criterion (exact language from the policy bulletin), (2) Satisfying Evidence from Chart, (3) Document Name/Date. Attach this table as the first page of the appeal package, followed by the referenced documents as numbered exhibits. The prior-treatment-history exhibit — showing what was tried, when, and why it was insufficient — is the most scrutinized section; make it complete and well-documented.