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Cervical Artificial Disc Replacement denials: what the review data shows

Independent reviewers have decided 26 published cases where an insurer denied Cervical Artificial Disc Replacement — and they overturned the insurer 7.7% of the time. A denial for Cervical Artificial Disc Replacement is a starting position, not a final answer.

Published decisions
26
2001–2026
Overturned
7.7%
2 denials reversed

Conditions behind cervical artificial disc replacement denials

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Cervical Radiculopathy7
14.3%
Cervical Spondylosis6
0%
Cervical Degenerative Disc Disease4
0%

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.
19
5.3%
Medical Necessity
The plan said the care wasn’t medically necessary. The most common fight, and the most winnable.
7
14.3%
Typical time to a decision
15 days
Most land between 6 and 21 days
Handled as urgent
42.3%
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

Nature of Statutory Criteria/Case Summary: An female enrollee has requested authorization and coverage for insertion of artificial intervertebral disc for treatment of the enrollee’s neck pain. Findings: Two physician reviewers found that the North American Spine Society state that cervical artificial disc replacement “may be indicated for the following diagnoses with qualifying criteria, when appropriate.” The guidelines include “radiculopathy related to nerve root compression from one or two-level degenerative disease (either herniated disc or spondylotic osteophyte) from C3-4 to C6-7 with or without neck pain that has been refractory to medical or non-operative management” or “myelopathy or myeloradiculopathy related to central spinal stenosis from one or two level degenerative disease (either herniated disc or spondylotic osteophyte) from C3-4 to C6-7 with or without neck pain.” In t…
Experimental/Investigational · 2016 · IMR EI16-23537
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for artificial disc replacement. In the medical literature, researchers reported on artificial disc placement in the cervical spine and found the device maintained physiological segmental motion at 24 months after implantation and was associated with improved neurological success, improved clinical outcomes, and a reduced rate of secondary surgeries compared with ACDF. This patient requires a decompression at the level of adjacent degeneration at C4-5 following ACDF. Moreover, there is adequate data that total disc replacement is superior to ACDF in this clinical setting. Accordingly, the requested artificial disc replacement is medically necessary for treatment of this patient’s intractable neck and right upper extremity pain.
Medical Necessity · 2018 · IMR MN18-29121

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for a cervical artificial disc replacement (C5-6 and C6-7 with the Simplify implant). This patient’s treatment plan includes C5-6 and C6-7 artificial disc replacement with the Simplify implant. The U.S. Food and Drug Administration (FDA) notes that Simplify indications for use include that the patient should have failed at least six weeks of nonoperative treatment or demonstrated progressive signs or symptoms despite non-operative treatment prior to implantation.
Medical Necessity · 2025 · IMR MN25-45078
Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for a cervical artificial disc replacement surgery. Bono and colleagues note that according to guidelines for cervical artificial disc replacement (ADR) by the North American Spine Society, cervical ADR may be indicated for patients with radiculopathy related to single level degenerative disease (either herniated disc or spondylotic osteophyte) from C3-C4 to C6-C7 with or without neck pain that has been refractory to conservative treatment, and for single level degenerative disease (either herniated disc or spondylotic osteophyte) from C3-C4 to C6-C7 with or without neck pain that is severe enough to warrant surgical intervention.
Medical Necessity · 2021 · IMR MN21-35364

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California outcomes — every state runs an equivalent external review, but the rates here are California’s. 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 are outcomes from California’s external review program — an independent physician panel that binds the insurer. Every state has an equivalent process, and internal appeals succeed even more often. Cite the outcome record for Cervical Artificial Disc Replacementwhen you appeal: reviewers routinely find that denials like yours didn’t hold up.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · DERIVED AGGREGATE STATISTICS ONLY · 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 Cervical Artificial Disc Replacement? 7.7% got it reversed.

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