SCS Traditional denied as experimental or investigational by eviCore healthcare?

NACC-aligned. Conservative therapy >=6 weeks, BHE clearance, >=50% trial relief documented for SCS implant.

Submit eviCore PA retroactively with full clinical. Psychologist letter explicitly stating 'appropriate candidate per NACC criteria.' Trial diary: daily NRS, ODI pre/post, analgesic reduction, patient global impression.

## Why eviCore Labeled This Experimental — and How to Challenge It

An "experimental or investigational" denial for traditional (conventional, tonic) spinal cord stimulation is one of the most aggressively appellable denial types. Conventional SCS has been FDA-cleared and clinically practiced for decades. When eviCore issues this denial, it is almost always because either: (1) the specific diagnosis or indication falls outside what its clinical guidelines list as established, or (2) the reviewer applied an outdated or overly narrow guideline version. In either scenario, the factual basis of the denial is directly contestable.

## The Regulatory and Clinical Foundation

Conventional SCS devices have long-standing FDA clearance and are supported by published guidance from recognized professional societies in pain medicine, neurosurgery, and neuromodulation. Before writing your appeal, confirm the FDA clearance status of the specific device via the FDA 510(k) database, and ask your physician to identify the applicable professional society guideline organization that supports the indication. The appeal should attach the FDA clearance document and cite the guideline organization by name.

## Your Federal Appeal Rights

Denials on experimental grounds under fully-insured ACA plans are subject to external review under ACA §2719 — and external reviewers are specifically empowered to reverse experimental denials if the evidence supports established use. For ERISA self-funded plans, ERISA §503 provides full-and-fair review rights. File for external review within four months of the final internal denial. If the delay threatens your health, request expedited review for a 72-hour decision.

## Appeal Timeline

1. File Level 1 internal appeal, attaching FDA clearance and the physician's letter. 2. Request a peer-to-peer review between your physician and the eviCore medical director. 3. File for external review immediately after the final internal denial.

## Documentation to Gather

• FDA 510(k) clearance documentation: the clearance letter and labeled indications for the specific SCS device.
• Physician medical-necessity letter: a letter explaining that conventional SCS is not experimental for the patient's diagnosis, citing the applicable professional society guideline by organization name.
• Supporting medical literature: peer-reviewed publications supporting conventional SCS for the patient's specific diagnosis, which the physician can identify.
• Chart documentation: diagnosis confirmation, severity documentation, and prior treatment history.

## Criteria-Mapping Structure

Download eviCore's published clinical guideline for SCS. Compare the denial rationale against the guideline's own language. If the guideline version used is outdated relative to current FDA clearance status or professional society guidance, note that discrepancy explicitly. Map each guideline criterion to a chart fact in a table format, and lead with the FDA clearance document as the threshold rebuttal.