Oppositional Defiant Disorder denials in California external review

In the California DMHC record, independent physician reviewers decided 86 published external-review cases involving oppositional defiant disorderand overturned the plan’s denial in 43%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
86
2002–2025
Overturned
43%
37 denials reversed

Most-fought treatments for oppositional defiant disorder

What insurers denied — and how those fights ended.
TreatmentDecisionsOverturned
Residential Treatment21
33.3%
Residential Treatment Center16
56.2%

What the insurer actually argued

Denials fall into different categories, and they don’t succeed equally — so the reason on your letter changes how you should answer it.
Reason givenDecisionsOverturned
Medical Necessity
The plan said the care wasn’t medically necessary. The most common fight, and the most winnable.
80
45%
Experimental/Investigational
The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument.
4
25%
Typical time to a decision
20 days
Most land between 10 and 23 days
Handled as urgent
23.3%
Expedited when a delay would cause harm

What the reviewers wrote

Excerpts from the independent reviewers’ published findings — the actual reasoning, quoted, not summarised.

Where the denial was overturned

Nature of Statutory Criteria/Case Summary: The patient’s parent has requested reimbursement for residential treatment center (RTC) services. Findings: The physician reviewer found that American Academy of Child and Adolescent Psychiatry (AACAP) and American Association for Community Psychiatry (AACP) have unified the Child and Adolescent Level of Care Utilization System (CALOCUS) and the Child and Adolescent Service Intensity Instrument (CASII) into a single instrument, the Child and Adolescent Level of Care/Service Intensity Utilization System (CALOCUS-CASII). This instrument is a standardized tool used to determine the intensity of services needed for children and adolescents, 6-18 years of age, presenting with psychiatric, substance use, medical and/or developmental concerns.
Medical Necessity · 2022 · IMR MN22-37899
Nature of Statutory Criteria/Case Summary: The patient’s parent has requested authorization and coverage for intensive family-focused therapy twice per week. The American Academy of Child and Adolescent Psychiatry (AACAP) and American Association for Community Psychiatry (AACP) have unified the Child and Adolescent Level of Care Utilization System (CALOCUS) and the Child and Adolescent Service Intensity Instrument (CASII) into a single instrument, the Child and Adolescent Level of Care/Service Intensity Utilization System (CALOCUS-CASII). This instrument is a standardized tool used to determine the intensity of services needed for children and adolescents, 6-18 years of age, presenting with psychiatric, substance use, medical, and/or developmental concerns. Using CALOCUS-CASII, providers score patients on a scale of 1-5 using a six-pronged Dimensional Rating System.
Medical Necessity · 2023 · IMR MN23-40634

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Findings: The physician reviewer found that The patient has requested reimbursement for residential treatment center (RTC) services. The American Academy of Child and Adolescent Psychiatry (AACAP) and American Association for Community Psychiatry (AACP) have unified the Child and Adolescent Level of Care Utilization System (CALOCUS) and the Child and Adolescent Service Intensity Instrument (CASII) into a single instrument, the Child and Adolescent Level of Care/Service Intensity Utilization System (CALOCUS-CASII). This instrument is a standardized tool used to determine the intensity of services needed for children and adolescents, 6-18 years of age, presenting with psychiatric, substance use, medical and/or developmental concerns. Using CALOCUS-CASII, providers score patients on a scale of 1-5 using a six-pronged Dimensional Rating System.
Medical Necessity · 2022 · IMR MN22-37184
Nature of Statutory Criteria/Case Summary: The parent of a patient has requested reimbursement for the residential treatment center services in the wilderness setting from 4/10/17 through 7/11/17. The Health Plan has denied this request indicating that the services at issue were not medically necessary for treatment of the patient’s behavioral health condition. The submitted documentation does not support the medical necessity of the services at issue. On 4/10/17, the patient presented to the wilderness program with a history of oppositional defiant disorder, parent child relational problem, sibling relational problem, and cannabis use disorder. The records noted that during treatment, the patient was cooperative, calm, and insightful into this patient’s psychological needs. The progress notes did not indicate that the patient had psychosis, paranoia or mania symptoms.
Medical Necessity · 2018 · IMR MN18-28799

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California external-review outcomes. Other state and federal programs have different eligibility rules, processes, and current availability; the rates here do not transfer to those programs or predict an individual result. Excerpts are quoted verbatim from the public record and describe this condition generally, not any individual case.

How to use this in your appeal

These outcomes describe eligible cases completed through California DMHC’s Independent Medical Review program. They do not estimate the chance that an internal appeal, an external review in another jurisdiction, or your individual case will succeed. Use the record to identify evidence patterns involving oppositional defiant disorder, then check the rights and deadlines that apply to your plan.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · AGGREGATES + DEIDENTIFIED DECISION EXCERPTS/REFERENCE IDS · METHODOLOGY

Not legal or medical advice. Coverage Rights is a self-help tool that helps you prepare your own appeal. For advice about your specific situation, talk to a licensed attorney or your doctor.

Fighting a denial for oppositional defiant disorder? Use the California record to prepare.

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