Admission for CNS/ Neuromusc Dis: 50.0% of denials overturned
In 22 California IMR decisions from 2002 to 2025, reviewers overturned 11 (50.0%). In the last five years: 62.5% of 8. 22 were medical-necessity disputes.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 3 | 66.7% |
| 2022 | 1 | 0.0% |
| 2023 | 1 | 0.0% |
| 2024 | 1 | 100.0% |
| 2025 | 2 | 100.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 5 | 100.0% | 50.0% |
| Urgent or emergencyThe findings mention urgency. | 3 | 100.0% | 50.0% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 3 | 0.0% | 50.0% |
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
“Nature of Statutory Criteria/Case Summary: A patient has requested reimbursement for inpatient hospitalization services after maxillomandibular surgery (for a total of three days). Maxillomandibular advancement (MMA) is a well-established surgical treatment in select patients with obstructive sleep apnea (OSA) that have been unable to tolerate positive airway pressure (PAP) therapy. MMA requires transection and movement of the mid-facial skeleton and …”
“Nature of Statutory Criteria/Case Summary: The parent of a patient has requested reimbursement for a full hospital admission following tonsillectomy/adenoidectomy. Findings: The physician reviewer found that Obstructive sleep apnea (OSA) involves recurrent episodes of partial or complete airway obstruction during sleep, with resultant hypoxemia, hypercapnia, and sleep disruption. Approximately 1-3% of children suffer from OSA. Such patients are frequently referred …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient requested reimbursement for inpatient hospitalization services.Migraine headaches are a complex disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and increased sensitivity to light and sound. Medical literature indicates that inpatient treatment for migraines is indicated when migraine is refractory to outpatient …”
And one the reviewer upheld
“Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement for acute inpatient level of care. The patient was admitted with a urinary tract infection (UTI) and dehydration. She had no complications and was treated with intravenous (IV) fluids and antibiotics. She had no period of hemodynamic instability and no advanced procedures or monitoring. She was changed to oral antibiotics, …”
- 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 Admission denials for CNS/ Neuromusc Dis overturned?
In 22 California IMR decisions from 2002 to 2025, reviewers overturned 11 (50.0%). In the last five years: 62.5% of 8. 22 were medical-necessity disputes.
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.