Vein Ablation for Cardiac/Circ Problem: 45.2% of denials overturned
In 31 California IMR decisions from 2019 to 2025, reviewers overturned 14 (45.2%). In the last five years: 47.6% of 21. 19 were medical-necessity disputes, 12 experimental/investigational.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 2 | 50.0% |
| 2022 | 2 | 100.0% |
| 2023 | 7 | 42.9% |
| 2024 | 7 | 28.6% |
| 2025 | 3 | 66.7% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 10 | 70.0% | 45.2% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 9 | 0.0% | 45.2% |
| Prior therapies failedThe findings mention treatments that were tried without adequate response. | 5 | 80.0% | 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 splenic artery embolization (SAE). Partial splenic embolization is a well-established, organ-preserving, minimally invasive therapy used to reduce spleen size and splenic parenchymal blood flow. It is widely accepted in modern interventional radiology practice for clinical scenarios where splenic size or fragility poses …”
“The physician reviewer found that a patient has requested authorization and coverage for endovenous ablation therapy of incompetent vein, injection of sclerosant, and stab phlebectomy of varicose veins to the right leg. In this case, the patient meets the criteria for the medical appropriateness of the procedures requested. The patient has a recurrence of venous insufficiency from procedures performed previously. …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for cardiac ablation. Based on the records provided for review, this patient’s presentation supports a diagnosis of paroxysmal atrial fibrillation. The electrocardiogram (EKG) report provided for review demonstrated normal sinus rhythm with no definitive atrial fibrillation. According to the current medical literature, proposed …”
And one the reviewer upheld
“Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for varicose vein treatment (duplex scan of extremity vein and stab phlebectomy). The submitted documentation does not support the medical necessity of the requested vein surgery. The patient reported that she is experiencing severe pain and is unable to walk. The record indicates that the patient has a …”
- 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 Vein Ablation denials for Cardiac/Circ Problem overturned?
In 31 California IMR decisions from 2019 to 2025, reviewers overturned 14 (45.2%). In the last five years: 47.6% of 21. 19 were medical-necessity disputes, 12 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.