Pneumatic Vest denials: 48.5% overturned by independent reviewers
In 33 California IMR decisions from 2002 to 2025, reviewers overturned the plan 16 times (48.5%). In the last five years: 69.2% of 13. 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 |
|---|---|---|---|
| Respiratory System | 17 | 52.9% | 66.7% of 6 |
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2022 | 2 | 50.0% |
| 2023 | 1 | 100.0% |
| 2024 | 7 | 71.4% |
| 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. | 11 | 54.5% | 48.5% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 3 | 0.0% | 48.5% |
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’s parent has requested reimbursement and prospective authorization and coverage for a high-frequency chest wall oscillation (HFCWO) system. The records indicate that this patient has multiple risk factors for respiratory distress and failure that are the result of impaired airway clearance. The patient’s risk factors include lower airway malacia, …”
“The physician reviewer found that a patient has requested reimbursement for an AffloVest device. High-frequency chest wall oscillation therapy with a device such as AffloVest has been shown to improve sputum volume production in patients with bronchiectasis. In this case, the patient continued to have increased cough and sputum production despite antibiotics, bronchodilator therapy daily, inhaled steroid therapy daily, saline …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: The parent of a patient has requested authorization and coverage for a Philips InCourage high-frequency chest wall oscillation (HFCWO) system. A review of the literature shows that airway clearance techniques are beneficial for individuals whose ability to expectorate airway secretions is compromised, as it is for patients with cystic fibrosis …”
- 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 Pneumatic Vest denials overturned?
In 33 California IMR decisions from 2002 to 2025, reviewers overturned the plan 16 times (48.5%). In the last five years: 69.2% of 13.
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.