TMS denied as non-formulary by UnitedHealthcare?

UnitedHealthcare'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 UHC Denied TMS as "Non-Formulary" — and What That Actually Means

A "non-formulary" denial for TMS is unusual because TMS is a procedure, not a drug — it is not literally on or off a pharmacy formulary. When UHC uses this language for TMS, it typically means one of two things: the specific TMS device or protocol requested is not on UHC's list of approved covered procedures for this benefit category, or the denial was issued under a benefit-exclusion framework that mirrors formulary tier logic for specialty and device-based treatments. In either case, the denial is a coverage classification decision, and it can be challenged by demonstrating that TMS fits within a covered benefit category under your plan.

## The Federal Appeal Framework

Under ACA §2719, non-grandfathered plans must provide internal appeal and independent external review. Under ERISA §503, employer-sponsored plans must provide a full-and-fair review. The external-review window is generally roughly four months after the internal denial. An expedited appeal is available when your clinician certifies urgency. Request your Summary Plan Description and the Adverse Benefit Determination letter immediately — they will specify which benefit category UHC is using and which exclusion it applied.

## What to Gather

• Your plan's Summary Plan Description (SPD) or Evidence of Coverage. Identify the benefit categories that cover outpatient mental health procedures. TMS is typically billed under outpatient behavioral health or outpatient specialty procedure benefits.
• UHC's current TMS coverage determination. Request the document by name. Determine whether UHC's own policy classifies TMS as covered for the cleared indication — many UHC plans do cover TMS, and a non-formulary code may be a billing or routing error.
• FDA clearance documentation. The 510(k) clearance letter for the specific device establishes that TMS has recognized regulatory status, relevant to any exclusion framed around "unapproved" or "non-covered" procedures.
• Diagnosis and prior treatment documentation. Formal records confirming the diagnosis and the treatment history that establishes clinical appropriateness.
• Prescriber medical-necessity letter. A signed statement from your psychiatrist explaining the indication and why TMS is appropriate for your specific case, with reference to the relevant cleared indication.

## Criteria-Mapping Structure

Your appeal should make two arguments in parallel: (1) TMS is covered under your plan's outpatient mental health or specialty benefit, not excluded; and (2) even if a non-formulary or tier classification applies, a coverage exception is warranted because TMS is medically necessary and no adequate formulary alternative exists for your specific situation. Map each argument to the specific plan language and clinical documentation.

## Next Step

File the internal appeal in writing, attaching the SPD analysis, FDA clearance letter, and prescriber letter. If the internal appeal is denied, invoke external review promptly in writing.