Hip Replacement for Orth/Musculoskeletal: 30.0% of denials overturned
In 100 California IMR decisions from 2001 to 2025, reviewers overturned 30 (30.0%). In the last five years: 9.1% of 22. 64 were medical-necessity disputes, 34 experimental/investigational, 2 urgent care.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 3 | 33.3% |
| 2022 | 5 | 0.0% |
| 2023 | 2 | 0.0% |
| 2024 | 6 | 0.0% |
| 2025 | 6 | 16.7% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 32 | 25.0% | 30.0% |
| Experimental or investigationalThe findings discuss whether the treatment is experimental. | 21 | 19.0% | 30.0% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 13 | 0.0% | 30.0% |
| Alternatives contraindicatedThe findings mention a contraindication to the plan's preferred option. | 12 | 50.0% | 30.0% |
| Prior therapies failedThe findings mention treatments that were tried without adequate response. | 10 | 30.0% | 30.0% |
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 9 | 11.1% | 30.0% |
| Urgent or emergencyThe findings mention urgency. | 6 | 16.7% | 30.0% |
| FDA approval or off-label use discussedThe findings discuss the FDA label status of the treatment. | 3 | 66.7% | 30.0% |
Keyword matches on the reviewer’s findings, not causes. A tag that appears mostly in overturned decisions is worth documenting in an appeal; it is not a guarantee.
From recent overturned decisions
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for total left hip replacement, anterior approach. Total hip arthroplasty is an established and effective treatment for relieving joint pain and disability and is a procedure of choice for end-stage degenerative joint disease. Surgery is indicated for osteoarthritis patients who have not responded …”
“Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for hip surgery arthroscopy hip with femoroplasty and arthroscopy hip with labral repair. Findings: The physician reviewer found that Hip arthroscopy appears to be a safe and efficacious treatment for labral tears and femoroacetabular impingement (FAI) in older patients who do not have significant underlying degenerative changes. However, …”
“An enrollee has requested authorization and coverage for hip replacement surgery.The American College of Rheumatology recommends total joint arthroplasty for patients with hip osteoarthritis following failed medical therapy. Medical therapy includes exercise, weight loss for overweight patients, medication management, walking aids, and psychosocial interventions. Researchers have concluded that six months after total joint replacement, severely or morbidly obese patients reported …”
And one the reviewer upheld
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for right total hip replacement surgery. Hip osteoarthritis is a highly prevalent and disabling condition. Education, exercise, and weight loss are the cornerstones of management, complemented by nonsteroidal anti-inflammatory drugs, corticosteroid injections, and adjunctive medications. For patients with advanced symptoms and structural damage, …”
- 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 Hip Replacement denials for Orth/Musculoskeletal overturned?
In 100 California IMR decisions from 2001 to 2025, reviewers overturned 30 (30.0%). In the last five years: 9.1% of 22. 64 were medical-necessity disputes, 34 experimental/investigational, 2 urgent care.
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.