52% overturnedAppeal outcomes · Injections

Denied radiofrequency ablation: what independent reviewers actually decided

Radiofrequency ablation splits almost down the middle, and the dimension that decided it is one that most appeal letters underplay.

Thermal denervation of a named nerve — most often the medial branches for facet-mediated pain — performed after diagnostic blocks and billed with level-specific codes.

What the independent reviewers decided

52%

overturned by the independent reviewer

94

of 182 decisions in the corpus

Source

California DMHC independent medical review determinations, 2017-2026. Public record.

Read this as a base rate, not as your odds

These are decisions about other patients, in one state, that had already been through the plan's own internal appeal and were then sent to an outside reviewer. That population is self-selected toward disputes worth pursuing, so the rate says what happened to cases like this at that stage — not what will happen to a specific claim. It is not medical or legal advice.

Why plans deny radiofrequency ablation

  • The policy requires a specific number of diagnostic blocks with a specific relief threshold, and the record does not show both.
  • The relief from the diagnostic block is not documented as a percentage or a duration.
  • The requested levels exceed the number the policy allows in one session.
  • A repeat ablation is denied because the interval since the last one is shorter than the policy allows.

What actually carried the cases that won

Chronicity led the overturned decisions — how long the pain had persisted, and what had been carried through in that time. That is a departure from the rest of the injection group, where prior treatment dominated, and it points at something practical: an ablation appeal that documents only the diagnostic blocks is answering the policy's checklist without establishing the durability of the problem the ablation is meant to solve. Peer-reviewed literature and clinical guidelines were the authorities cited most.

What the record showedShare of overturned decisions
The condition was documented as chronic or long-standing54%
A published guideline supported the request48%
Prior treatment was documented37%
The functional impact on the patient was documented32%
Objective findings were documented30%
Conservative treatment was documented as failed27%
The severity or urgency was documented18%
The diagnosis was confirmed18%

Shares are of the overturned decisions and do not sum to 100% — a single decision often rested on more than one, and some rested on none of these.

What the reviewers cited

  • Peer-reviewed literature — in 50% of the overturned decisions
  • Clinical guidelines — in 22% of the overturned decisions
  • Specialty-society criteria — in 14% of the overturned decisions
  • Standard of care — in 6% of the overturned decisions
  • FDA labeling — in 5% of the overturned decisions

radiofrequency ablation denials — frequently asked

Is a denied radiofrequency ablation worth appealing?
California independent reviewers looked at 182 of these disputes and reversed 94 of them — as close to a coin flip as this corpus gets. A split that even means the record is doing the deciding, not the plan's default position.
Are the diagnostic blocks enough?
They are necessary and not sufficient. The reversals documented the blocks and the relief in measurable terms, and also established how long the condition had persisted and what else had been carried through — which is what the chronicity finding in this corpus reflects.
What about the number of levels?
Level limits are a common and clean basis for denial. Where the request exceeds the policy's limit, the appeal has to justify the additional levels specifically, not the procedure generally.

Related guides

CO-50 — not medically necessaryPain management denialsHow external review works

Source

Denial reasons and criteria are described in plain language for reference and vary by plan and policy. This page reports what independent reviewers decided in a public California dataset; it is general information, not medical, legal, or coverage advice.

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