Post-traumatic Stress Disorder denials in California external review

In the California DMHC record, independent physician reviewers decided 363 published external-review cases involving post-traumatic stress disorderand overturned the plan’s denial in 67.5%. That is a historical result among cases that reached this program, not a forecast for an individual appeal.

California DMHC decisions
363
2003–2025
Overturned
67.5%
245 denials reversed

Most-fought treatments for post-traumatic stress disorder

What insurers denied — and how those fights ended.
TreatmentDecisionsOverturned
Residential Treatment Center174
81.6%
Partial Hospitalization Program27
70.4%
Intensive Outpatient Program20
65%
Eye Movement Desensitization And Reprocessing17
52.9%

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.
357
68.6%
Experimental/Investigational
The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument.
5
0%
Typical time to a decision
8 days
Most land between 5 and 21 days
Handled as urgent
57%
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

Findings: The physician reviewer found that The patient requested reimbursement and prospective authorization and coverage for residential treatment center (RTC) services (ASAM 3.5). Per the American Society of Addiction Medicine (ASAM) criteria, this patient meets Level 3.5 criteria for RTC services. ASAM criteria focuses on 6 dimensions to determine the appropriate level of care, which includes: (1)intoxication and withdrawal potential; (2)biomedical conditions; (3)emotional, behavioral and cognitive conditions; (4)readiness to change; (5)relapse, continued use, or continued problem potential; and (6)recovery environment. For dimension 1, the patient had no signs or symptoms of withdrawal after detoxification was completed.
Medical Necessity · 2023 · IMR MN23-38824
Nature of Statutory Criteria/Case Summary: Patient has requested reimbursement and prospective authorization and coverage for residential treatment center (RTC) services (ASAM 3.1). Per the American Society of Addiction Medicine (ASAM) criteria, this patient meets Level 3.1 criteria for RTC services. ASAM criteria focuses on six dimensions to determine the appropriate level of care, which includes: (1) intoxication and withdrawal potential; (2) biomedical conditions; (3) emotional, behavioral and cognitive conditions; (4) readiness to change; (5) relapse, continued use, or continued problem potential; and (6) recovery environment. For dimension 1, the patient was tapering off methadone with the plan to switch over to Suboxone for medication assisted treatment and was experiencing withdrawal during her stay at the RTC including cramping and diarrhea.
Medical Necessity · 2023 · IMR MN23-38707

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Nature of Statutory Criteria/Case Summary: Patient requested reimbursement for RTC services (ASAM 3.1). Per the ASAM criteria, this patient doesn’t meet all six Level 3.1 criteria for RTC services. ASAM criteria focus on 6 dimensions to determine the appropriate level of care: For dimension 1 (intoxication & withdrawal potential), patient meets ASAM 3.1 as patient didn’t have any symptoms of acute withdrawal. On the date of denial, patient’s vital signs were stable, & he was being treated in level 3.1 RTC. For dimension 2 (biomedical conditions), patient meets ASAM 3.1 as patient had no acute medical illness. Thus, patient’s biomedical problems, if any, have been stable & don’t require medical or nurse monitoring, & patient has been capable of self-administering any prescribed medications.
Medical Necessity · 2023 · IMR MN23-40643
Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement and prospective authorization and coverage for residential treatment center (RTC) services (ASAM 3.5). Per the American Society of Addiction Medicine (ASAM) criteria, this patient does not meet Level 3.5 criteria for RTC services from 7/28/22 forward. The ASAM criteria focuses on six dimensions to determine the appropriate level of care, which includes: (1) intoxication and withdrawal potential; (2) biomedical conditions; (3) emotional, behavioral and cognitive conditions; (4) readiness to change; (5) relapse, continued use, or continued problem potential; and (6) recovery environment. For dimension 1, the patient no longer had withdrawal symptoms per the records. The patient’s withdrawal needs can be safely managed in a Level 3.5 setting.
Medical Necessity · 2022 · IMR MN22-37874

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.

Related guide

A diagnosis does not by itself establish treatment intensity. See the separate record for residential, PHP, IOP, inpatient, and withdrawal-management denials: behavioral-health level-of-care evidence guide.

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 post-traumatic stress 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 post-traumatic stress disorder? Use the California record to prepare.

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