Hypoglossal Nerve Stimulator denials in California external review

In the California DMHC record, independent physician reviewers decided 12 published external-review cases involving Hypoglossal Nerve Stimulatorand overturned the plan’s denial in 58.3%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
12
2015–2024
Overturned
58.3%
7 denials reversed

By condition

Published outcomes when Hypoglossal Nerve Stimulator was denied for these conditions.
ConditionDecisionsOverturned
Obstructive Sleep Apnea12
58.3%

What the insurer actually argued

Denials fall into different categories, and they don’t succeed equally — so the reason on your letter changes how you should answer it.
Reason givenDecisionsOverturned
Experimental/Investigational
The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument.
8
37.5%
Medical Necessity
The plan said the care wasn’t medically necessary. The most common fight, and the most winnable.
4
100%
Typical time to a decision
17 days
Most land between 7 and 20 days
Handled as urgent
33.3%
Expedited when a delay would cause harm

What the reviewers wrote

Excerpts from the independent reviewers’ published findings — the actual reasoning, quoted, not summarised.

Where the denial was overturned

Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for hypoglossal nerve stimulator. Continuous positive airway pressure (CPAP) therapy has traditionally been the gold standard first-line therapy in the treatment of obstructive sleep apnea (OSA). Failure to comply with CPAP, however, is not uncommon, as many patients find it intolerable. As a result, tonsillectomy with or without uvulopalatopharyngoplasty (UPPP) has historically been utilized as an alternative surgical option. This procedure may be effective in appropriately selected patients. However, it commonly fails to objectively reduce the apnea-hypopnea index (AHI) to any meaningful extent, and those individuals who do improve frequently relapse, as was the case with this patient.
Medical Necessity · 2024 · IMR MN24-41889
Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for insertion of hypoglossal nerve neurostimulator (HNS) electrode and generator and breathing sensor electrode, with implantable neurostimulator electrode, each when component of an HNS (x 2); and implantable neurostimulator pulse generator, dual array; non rechargeable, includes extension when specified as a component of an HNS. Continuous positive airway pressure (CPAP) has traditionally been the gold standard first-line therapy for the treatment of obstructive sleep apnea (OSA). Failure to comply with CPAP, however, is not uncommon as it requires patients to wear either a nasal or full face mask during sleep, which many find uncomfortable.
Medical Necessity · 2023 · IMR MN23-39410

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for hypoglossal nerve stimulator (CPT 64568 and CPT 0466T). The U.S. Food and Drug Administration (FDA) has approved hypoglossal nerve stimulation for the treatment of moderate to severe obstructive sleep apnea (OSA) refractory to continuous positive airway pressure (CPAP). However, research comparing its effectiveness to existing alternatives, such as airway surgery or oral appliances, is lacking. Researchers conducted a systematic review comparing oral appliances and CPAP in adult patients with mild to severe OSA. The authors found that although CPAP improved apnea/hypopnea index (AHI) scores more than oral appliances, CPAP users also showed significantly worse compliance with their devices.
Experimental/Investigational · 2019 · IMR EI19-32189
An enrollee has requested authorization and coverage for hypoglossal nerve stimulator surgery. Findings: The physician reviewer found that the patienthas a history of obstructive sleep apnea (OSA). He was treated with continuous positive airway pressure (CPAP) but he became intolerant to the therapy. The patient reported daytime somnolence. The patient’s provider recommended a surgical implantation of hypoglossal nerve stimulator. The Health Plan denied the requested services as investigational for the treatment of this patient. The hypoglossal nerve stimulator can be an effective therapy for certain patients diagnosed with OSA. However, in this patient’s case, the procedure is not likely to be superior to other methods of treatment for his medical condition.
Experimental/Investigational · 2016 · IMR EI16-24168

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California external-review outcomes. Other state and federal programs have different eligibility rules, processes, and current availability; the rates here do not transfer to those programs or predict an individual result. Excerpts are quoted verbatim from the public record and describe this treatment generally, not any individual case.

How to use this in your appeal

These outcomes describe eligible cases completed through California DMHC’s Independent Medical Review program. They do not estimate the chance that an internal appeal, an external review in another jurisdiction, or your individual case will succeed. Use the record to identify evidence patterns involving Hypoglossal Nerve Stimulator, then check the rights and deadlines that apply to your plan.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · AGGREGATES + DEIDENTIFIED DECISION EXCERPTS/REFERENCE IDS · METHODOLOGY

Not legal or medical advice. Coverage Rights is a self-help tool that helps you prepare your own appeal. For advice about your specific situation, talk to a licensed attorney or your doctor.

Denied Hypoglossal Nerve Stimulator? Use the California record to prepare.

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