Artificial Disc Repl denials in California external review

In the California DMHC record, independent physician reviewers decided 244 published external-review cases involving Artificial Disc Repland overturned the plan’s denial in 9.8%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
244
2005–2025
Overturned
9.8%
24 denials reversed

Conditions behind Artificial Disc Repl denials

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Vertebral Disc Prob132
8.3%
Back Pain54
14.8%
Neck Problem13
7.7%
Neck Problem Pain9
22.2%

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.
178
6.7%
Medical Necessity
The plan said the care wasn’t medically necessary. The most common fight, and the most winnable.
65
18.5%
Typical time to a decision
20 days
Most land between 7 and 21 days
Handled as urgent
30.3%
Expedited when a delay would cause harm
Recent direction
Falling
33.3%15.2% overturned, last three years

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: The patient has requested authorization and coverage for artificial disc replacement surgery by anterior approach (CPT code 22857). The U.S. Food and Drug Administration (FDA) has approved ProDisc-L total disc replacement for spinal arthroplasty in skeletally mature patients with degenerative disc disease (DDD) at one or two consecutive levels from L3 to S1. The FDA further notes that the patient should be skeletally mature with no spinal growth remaining, have a condition in which pain is caused by wear-and-tear on a spinal disc at one or two consecutive levels in the lumbar spine from L3 to S1, have no more than grade 1 spondylolisthesis at the involved level(s), and have failed at least six months of conservative treatment.
Medical Necessity · 2022 · IMR MN22-36807
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for percutaneous laminotomy/laminectomy (interlaminar approach) (mild procedure) (CPT 0275T). Findings: The physician reviewer found that In a randomized control trial evaluating the minimally invasive lumbar decompression (MILD) procedure for the treatment of lumbar stenosis, Staats and colleagues reported, “All outcome measures demonstrated clinically meaningful and statistically significant improvement from baseline through six-month, one-year, and two-year follow-ups. At two years, Oswestry Disability Index (ODI) improved by 22.7 points, Numeric Pain Rating Scale (NPRS) improved by 3.6 points, and Zurich Claudication Questionnaire (ZCQ) symptom severity and physical function domains improved by 1.0 and 0.8 points, respectively.
Experimental/Investigational · 2021 · IMR EI21-36133

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 reimbursement for surgical and related services provided. Findings: The patient presented with complaints of persistent low back pain radiating into the enrollee's right buttocks. Enrollee was having difficulty bending down and getting out of a chair. Patient reports that up to two weeks ago, enrollee was working out two times a week with a trainer, running, playing golf and doing well. Enrollee reported an onset of pain after playing golf and was unable to get out of bed the next morning. Enrollee saw chiropractor and was adjusted with no significant relief. Physical examination documented limited right lumbar lateral flexion, tenderness over the sacroiliac joints, right greater than left, and soreness over the sciatic notch. There was no marked lumbar spine tenderness.
Urgent Care · 2017 · IMR UR17-25348
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for (1) four cervical levels (two levels approved by plan and two levels denied by plan) of artificial disc replacement (ADR) (CPT 22856) and (2) four lumbar levels (one level approved by plan, and three levels denied by plan) of ADR (CPT 0163T). In this clinical setting, four cervical levels of ADR are not likely to be more beneficial than any available standard treatment for this patient’s medical condition. In a prospective, randomized, controlled multicenter clinical trial on two-level symptomatic degenerative disc disease, Davis and colleagues noted findings supporting the use of cervical arthroplasty at two contiguous levels and demonstrated advantages over two-level anterior cervical discectomy and fusion.
Experimental/Investigational · 2021 · IMR EI21-35793

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 Artificial Disc Repl, 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 Artificial Disc Repl? Use the California record to prepare.

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