TMS denied for missing prior authorization by Humana?

Humana'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 Humana Denied TMS for Missing Prior Authorization — and What to Do

A "prior authorization required" denial means Humana did not receive — or did not approve — a pre-service coverage request before TMS was administered or before the claim was submitted. This is among the most recoverable denial types because it is procedural rather than clinical: the question is whether the service itself is covered, not just whether the paperwork arrived on time.

Humana requires prior authorization for TMS because it is a higher-cost, non-medication treatment. The authorization process is how Humana verifies that its clinical coverage criteria are met before services begin. When authorization is missing, the denial is about process — but federal law and Humana's own appeals procedures give you a path to have the underlying clinical question reviewed on its merits.

## The Federal Appeal Framework

Under ACA §2719, non-grandfathered plans must offer an internal appeal and, if denied, independent external review. For prior-authorization denials, you can also invoke an expedited appeal if your psychiatrist documents that waiting for the standard timeline would seriously jeopardize your health. ERISA §503 requires employer-sponsored plans to provide written reasoning and a full-and-fair review. The external-review window is generally available for roughly four months after your internal denial letter — confirm the exact deadline in your plan documents.

## What to Gather

• Denial letter and authorization reference number. Confirm whether the denial is purely procedural (no authorization was requested) or also clinical (authorization was requested and refused).
• Prior treatment history. Dated records of antidepressant medication trials with names, durations, and documented outcomes, establishing the treatment course that precedes a TMS recommendation.
• Diagnosis confirmation. Formal psychiatric records supporting the diagnosis and severity level in your chart.
• Prescriber medical-necessity letter. Your psychiatrist's signed statement explaining why TMS is appropriate and medically necessary for your specific situation, keyed to Humana's published coverage criteria.
• Humana's current TMS Medical Coverage Policy. Request the policy by name. Your appeal must map your clinical facts to every listed criterion.

## Criteria-Mapping Structure

For each criterion in Humana's TMS coverage policy, note the requirement, cite the chart record or prescriber statement that satisfies it, and identify the page or document where the evidence appears. If TMS has already been administered, include treatment records showing clinical response. Demonstrating that the clinical criteria were in fact met — even if authorization was not obtained in advance — is the core argument for a retroactive authorization appeal.

## Timeline and Next Step

File your written internal appeal before Humana's stated deadline in the denial letter. Request that it be expedited if your psychiatrist confirms urgency. If internal review is denied, submit a written external-review request promptly — do not wait for a second internal denial if the clock is running.