Orthopedic Procedures denials in California external review

In the California DMHC record, independent physician reviewers decided 1,676 published external-review cases involving orthopedic procedures and overturned the plan’s denial in 29.4%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
1,676
2001–2026
Overturned
29.4%
493 denials reversed

By denial reason

The stated reason changes which facts, criteria, and records matter.
Denial reasonDecisionsOverturned
medical necessity876
35%
experimental / investigational782
22.9%

Within this category

Subcategories with at least 15 published decisions.
SubcategoryDecisionsOverturned
Other672
31.8%
Fusion244
27.9%
Artificial Disc Repl244
9.8%
Hip Replacement107
32.7%
Arthroscopy97
43.3%
Knee Replacement93
26.9%
Diskectomy46
17.4%
Fract/Bone Repair45
46.7%
Jaw Surgery40
77.5%
Laminectomy28
35.7%
Ligament/Tendon Repair23
30.4%
Charite21
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
Medical Necessity
The plan said the care wasn’t medically necessary. The most common fight, and the most winnable.
876
35%
Experimental/Investigational
The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument.
782
22.9%
Urgent Care
Expedited reviews, decided in days rather than weeks.
18
38.9%
Typical time to a decision
17 days
Most land between 6 and 21 days
Handled as urgent
35.8%
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 enrollee’s parent has requested reimbursement for selective percutaneous myofascial lengthening (SPML) of the bilateral adductor/hip, bilateral hamstring, and bilateral leg/ankle/gastrocnemius with alcohol nerve block. Researchers explain, “Spastic cerebral palsy can be subcategorized based on the clinical picture and it usually leads to contractures that will need to be surgically released. SPML is one method that is used to release some of the contractures. SPML has many benefits such as being very quick, less invasive, and leading to faster recovery.” Researchers conclude that studies support the safety of the minimally invasive SPML release of the lower extremities based on the low complication and low reoperation rates.
Experimental/Investigational · 2023 · IMR EI23-39504
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for orthognathic surgery consisting of: midface reconstruction, LeFort 1 maxillary osteotomy, three segments, with autogenous local graft-advancement with clockwise occlusal plane rotation ; mandibular reconstruction, bilateral sagittal osteotomies of the mandibular ramus with rigid internal fixation-setback with counter clockwise occlusal plane rotation; and interocclusal surgical guide.At issue in this case is whether the requested orthognathic surgical services are medically necessary to treat the patient’s medical condition. In addition, does the patient’s severe malocclusion constitute an abnormal structure of the body? If so, is the abnormal structure of the body caused by any of the following: congenital abnormalities; developmental abnormalities; trauma; infection; tumors or disease?
Medical Necessity · 2020 · IMR MN20-33759

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
Physician 1: The patient is a 51-year-old man with hip pain secondary to arthritis. He underwent metal-on-metal hip resurfacing in August 2004. The patient has requested reimbursement for the procedure at issue. The Health Plan has denied the patient’s request indicating the procedure at issue is considered experimental.Metal-on-metal hip resurfacing is an experimental procedure without proven efficacy. The current standard of care for the patient’s condition is a total hip replacement. This is the gold standard that all other treatments must be compared to. Metal-on-metal total hip resurfacing has not been effective and is out of favor given the extremely poor results of this technique.
Experimental/Investigational · 2005 · IMR EI05-4339

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 category of care 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 orthopedic procedures, 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 for orthopedic procedures? Use the California record to prepare.

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