Epidural Injection for Orth/Musculoskeletal: 45.2% of denials overturned
In 155 California IMR decisions from 2002 to 2026, reviewers overturned 70 (45.2%). In the last five years: 58.0% of 50. 135 were medical-necessity disputes, 20 experimental/investigational.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 8 | 75.0% |
| 2022 | 5 | 20.0% |
| 2023 | 10 | 50.0% |
| 2024 | 14 | 71.4% |
| 2025 | 12 | 58.3% |
| 2026 | 1 | 0.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 62 | 54.8% | 45.2% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 29 | 3.4% | 45.2% |
| Prior therapies failedThe findings mention treatments that were tried without adequate response. | 27 | 74.1% | 45.2% |
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 24 | 54.2% | 45.2% |
| Experimental or investigationalThe findings discuss whether the treatment is experimental. | 5 | 20.0% | 45.2% |
| Alternatives contraindicatedThe findings mention a contraindication to the plan's preferred option. | 3 | 33.3% | 45.2% |
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 transforaminal epidural steroid injections. Epidural steroid injections are an accepted interventional treatment for radicular pain due to nerve root inflammation, particularly in patients who have not achieved adequate relief with conservative management. Clinical guidelines support their use in appropriately selected patients with imaging …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for a transforaminal lumbar epidural steroid injection. In this case, the patient has a diagnosis of lumbar adjacent segment disease with spondylolisthesis. The record establishes that the patient’s pain is in her lower back, which radiates to her flank, left buttock, and left …”
“Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for L4-5 translaminar epidural steroid injection. The American Society of Interventional Pain Physicians guidelines for the management of chronic spinal pain report that there is high quality evidence for the use of caudal epidural injections, lumbar interlaminar epidural injections, lumbar transforaminal epidural injections, and cervical interlaminar epidural injections, …”
And one the reviewer upheld
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for an epidural steroid injection and/or selective nerve root block injection. Current clinical literature provides mixed evidence regarding the long-term efficacy of epidural steroid injections for chronic low back pain with radicular symptoms. Some studies suggest only limited short-term benefit, without clinically meaningful …”
- 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 Epidural Injection denials for Orth/Musculoskeletal overturned?
In 155 California IMR decisions from 2002 to 2026, reviewers overturned 70 (45.2%). In the last five years: 58.0% of 50. 135 were medical-necessity disputes, 20 experimental/investigational.
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.