Jaw Surgery for Orth/Musculoskeletal: 74.1% of denials overturned
In 27 California IMR decisions from 2001 to 2025, reviewers overturned 20 (74.1%). In the last five years: 75.0% of 4. 27 were medical-necessity disputes.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2022 | 1 | 100.0% |
| 2025 | 3 | 66.7% |
What the findings mention
From recent overturned decisions
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for arthroscopic temporomandibular joint (TMJ) surgery for the enrollee’s left side of the jaw. In this case, the patient was diagnosed with left-sided TMJ dysfunction confirmed by magnetic resonance imaging (MRI). The record confirmed that the patient attempted the conservative treatment approach without …”
“Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for maxillary mandibular advancement surgery (MMA). In this case, the patient was diagnosed with obstructive sleep apnea (OSA), characterized by recurrent episodes of upper airway obstruction during sleep, leading to significant daytime impairment and increased risk of cardiovascular complications. The record establishes that the patient tried conservative management …”
“The physician reviewer found that The patient has requested authorization and coverage for a left high condylar shave as a component of the approved corrective jaw surgery. Disturbances in the growth pattern of the mandibular condyle during the normal growth period may result in condylar hyperplasia and is diagnosed by bone scan. Abu Arqub and colleagues report that condylar hyperplasia …”
And one the reviewer upheld
“The physician reviewer found that the parent of a patient has requested authorization and coverage for immediate scheduling of orthognathic surgery. The patient’s provider agrees that the patient requires the requested surgery. However, the surgeon should determine the timing of the surgery based on scientific factors and specific criteria. This criteria includes whether or not the patient has stopped growing, …”
- California only: these are decisions by independent reviewers under California's IMR program (plans regulated by the Department of Managed Health Care). Other states and self-funded employer plans use different reviewers and rules.
- Selection: only denials that a member took all the way to IMR appear. Most denials are never appealed, and the ones that reach an external reviewer are not a random sample.
- Overturned means the reviewer disagreed with the plan; it does not mean the treatment worked or that a similar request will be approved.
- Argument tags are keyword matches on the reviewer's findings. They describe what the findings mention, not why the case was decided.
- Categories are DMHC's own labels (treatment sub-category and diagnosis category); 'Other' is a catch-all and is excluded from rankings.
Source: California Department of Managed Health Care, Independent Medical Review (IMR) Determinations, Trend (CHHS Open Data). Public California government data; Apellica's aggregates and tags are CC BY 4.0.
Questions
How often were Jaw Surgery denials for Orth/Musculoskeletal overturned?
In 27 California IMR decisions from 2001 to 2025, reviewers overturned 20 (74.1%). In the last five years: 75.0% of 4. 27 were medical-necessity disputes.
What should an appeal document, based on these findings?
Whatever the plan's criteria ask for, shown in the record: the treatments already tried and their results, contraindications to the plan's preferred option, the guideline or evidence that supports the request, and the treating clinician's reasoning written to the criteria. The tag table shows which of these the reviewers mentioned most in overturned cases.
Does a California IMR result apply to my plan?
Only California plans regulated by the Department of Managed Health Care go to IMR. Other states and self-funded employer plans use different reviewers, but they weigh the same things.
Independent reviewers reverse plans when the record answers the criteria. Upload the denial letter; a senior reviewer reads it within 24 hours and tells you in writing whether it can be appealed and how. $0 upfront, 10% of what is recovered, nothing if we do not recover. Not a law firm.