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Temporomandibular Disorder: when insurers say no, reviewers often say yes

In 12 published external-review decisions involving temporomandibular disorder, independent physician reviewers overturned the insurer’s denial 75% of the time.

Published decisions
12
2001–2026
Overturned
75%
9 denials reversed

Most-fought treatments for temporomandibular disorder

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Botox Injections7
57.1%
Botox3
33.3%
Typical time to a decision
17 days
Most land between 6 and 20 days
Handled as urgent
41.7%
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: A patient has requested authorization and coverage for Botox injections every 12 weeks.Botox is a neurotoxin that inhibits acetylcholine release at the neuromuscular junction, effectively reducing muscle hyperactivity. Botox has been used to treat patients with refractory bruxism and oromandibular dystonia who have failed to respond to adequate attempts at first-line therapies. A study demonstrated that Botox can significantly improve pain, jaw function, and muscle activity in patients with sleep bruxism and temporomandibular (TMJ) symptoms, with a strong safety profile. A randomized, placebo-controlled trial showed that Botox led to statistically significant improvements in sleep bruxism frequency and facial pain, with no serious adverse events.
Medical Necessity · 2025 · IMR MN25-44912
Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for magnetic resonance imaging (MRI) of temporomandibular joints (TMJ). The TMJ are the sole joints responsible for articulation and movement of the lower jaw. Pathologic conditions affecting the TMJ, and associated musculature and connective tissue of the lower jaw, are referred to as temporomandibular disorders (TMD). The symptoms of TMD include jaw pain, headaches, restricted jaw opening, joint dislocation, and frequently associated ear symptoms, such as ear pain and fullness. The diagnosis of TMD is typically made based on the patient’s medical history and physical examination. However, elucidating the exact nature of the derangement commonly requires further investigation with imaging.
Medical Necessity · 2024 · IMR MN24-42398

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for Botox (onabotulinumtoxinA) injections. Temporomandibular disorders (TMD) represent a collection of pathologies that involve the temporomandibular joints and/or the muscles related to mastication and associated connective tissues. Researchers explain that the diagnosis of TMD is based on presenting symptoms and correlative findings on physical examination. Symptoms may include headache, localized pain around the jaw and ear, and trismus, with a physical examination demonstrating localized tenderness with palpation of the joint space and/or associated muscles of mastication, and/or dysfunction of the joints, such as popping and clicking, and/or limited jaw opening.
Medical Necessity · 2024 · IMR MN24-41228
Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for Botox injections. A concise review of the literature regarding current management options/guidelines for temporomandibular disorder (TMD) recommends physical therapy and acupuncture/dry needling. A systematic review and meta-analysis found that Botox was only slightly more effective than placebo at reducing pain at one month, with no differences existing at three and six months, and that facial manipulation, or physical therapy, was more effective than Botox at pain reduction at three months.
Medical Necessity · 2025 · IMR MN25-45353

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 condition generally, not any individual case.

How to use this in your appeal

These outcomes come from California’s external review program — an independent physician panel whose decision binds the insurer. Every state has an equivalent, and internal appeals succeed even more often. If your care for temporomandibular disorder was denied, the published record says the denial is worth fighting.

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.

Fighting a denial for temporomandibular disorder? 75% won.

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