IVIG Therapy for Cardiac/Circ Problem: 55.6% of denials overturned
In 9 California IMR decisions from 2013 to 2025, reviewers overturned 5 (55.6%). In the last five years: 80.0% of 5. 8 were medical-necessity disputes, 1 experimental/investigational.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 3 | 100.0% |
| 2024 | 1 | 100.0% |
| 2025 | 1 | 0.0% |
What the findings mention
From recent overturned decisions
“Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for Gamunex-C intravenous immune globulin (IVIG). The records indicate that this patient presents with a history of post-COVID dysautonomia. Post-COVID conditions can occur in patients with prior COVID-19 infection who have symptoms at least three months after the initial infection. This patient’s symptoms have included fainting, extreme fatigue, …”
“Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for intravenous immunoglobulin (IVIG) (20 grams every two weeks).Findings: The physician reviewer found that dysautonomia as an umbrella term referring to any disorder associated with dysfunction of the autonomic nervous system. The authors further note, “There are many different mechanisms by which dysautonomia may arise, but there has …”
“Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for Gammagard Liquid 10% vial. The treatment of patients with small fiber neuropathy is dependent on the underlying etiology and management of associated neuropathic pain, which can include several different classes of medications. Small fiber polyneuropathy has various underlying causes, including associations with systemic autoimmune conditions. Intravenous immunoglobulin …”
And one the reviewer upheld
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for Octagam vial. There are limited studies showing efficacy of the requested medication for this patient’s postural orthostatic tachycardia syndrome (POTS) and mast cell activation syndrome (MCAS). According to one study, “The utility of IVIG [intravenous immunoglobulin] in autoimmune neuromuscular diseases has been …”
- 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 IVIG Therapy denials for Cardiac/Circ Problem overturned?
In 9 California IMR decisions from 2013 to 2025, reviewers overturned 5 (55.6%). In the last five years: 80.0% of 5. 8 were medical-necessity disputes, 1 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.