Heart Monitor denials: 25.0% overturned by independent reviewers
In 44 California IMR decisions from 2011 to 2025, reviewers overturned the plan 11 times (25.0%). In the last five years: 28.0% of 25. Denials reach IMR only when a member appeals all the way; read the caveats below before generalising.
By diagnosis
| Diagnosis category | Decisions | Overturned | Last 5 years |
|---|---|---|---|
| Cardiac/Circ Problem | 43 | 25.6% | 29.2% of 24 |
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 1 | 0.0% |
| 2022 | 5 | 40.0% |
| 2023 | 2 | 50.0% |
| 2024 | 11 | 9.1% |
| 2025 | 6 | 50.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 4 | 25.0% | 25.0% |
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 4 | 25.0% | 25.0% |
| Experimental or investigationalThe findings discuss whether the treatment is experimental. | 3 | 33.3% | 25.0% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 3 | 0.0% | 25.0% |
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 reimbursement for mobile cardiac telemetry (MCT). Atrial fibrillation (AF) is frequently observed in patients with hypertrophic cardiomyopathy (HCM), resulting in a heightened risk of stroke beyond what is determined by commonly applied risk calculators. As such, much attention is placed on the surveillance of subclinical or …”
“Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement for mobile cardiovascular telemetry with electrocardiographic recording. Mobile cardiac outpatient telemetry (MCOT) has emerged as a standard tool in the evaluation of patients with suspected cardiac arrhythmia. While the traditional Holter monitor provides continuous electrocardiogram (ECG) monitoring, it is generally only available for a period of 24 to 48 hours. …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested reimbursement for external mobile cardiovascular telemetry monitor services. Continuous cardiac monitoring is a well-established component of the diagnostic workup for suspected ischemic stroke or transient neurologic deficits. Leading expert guidelines recommend at least 24 hours of continuous cardiac monitoring for all patients with suspected acute ischemic …”
- 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 Heart Monitor denials overturned?
In 44 California IMR decisions from 2011 to 2025, reviewers overturned the plan 11 times (25.0%). In the last five years: 28.0% of 25.
What did the reviewers' findings mention in overturned cases?
The table on this page counts keyword matches in the findings: prior therapies tried, contraindications, guidelines cited, published evidence, whether the records supported the request. They describe what the findings say, not why the case was decided.
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 the reasoning is the same kind: criteria, documentation and alternatives. Use the findings as a guide to what to document.
Related: California appeal rights · California external-review reversal rate · The levers library · CSV
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.