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Korlym denials: what the review data shows

Independent reviewers have decided 14 published cases where an insurer denied Korlym — and they overturned the insurer 35.7% of the time. A denial for Korlym is a starting position, not a final answer.

Published decisions
14
2001–2026
Overturned
35.7%
5 denials reversed
Typical time to a decision
7 days
Most land between 4 and 21 days
Handled as urgent
42.9%
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: An enrollee has requested authorization and coverage for Korlym 300 mg for treatment of the enrollee’s Cushing’s syndrome. Findings: The physician reviewer found that the current medical evidence supports the requested medication in this clinical setting. Cushing’s syndrome is a collection of signs and symptoms due to prolonged exposure to cortisol. It is associated with poor quality of life, morbidity, and increased mortality. While optimum treatment typically consists of selective and complete resection of the causative tumor, the development of new drugs offers clinicians several choices to treat patients with residual cortisol excess following the surgery. The U.S.
Medical Necessity · 2017 · IMR MN17-25775
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for Korlym 300 mg tablets.Cushing’s syndrome, a collection of signs and symptoms due to prolonged exposure to cortisol, is associated with poor quality of life, morbidity, and increased mortality. While optimum treatment typically consists of selective and complete resection of the causative tumor, the development of new drugs offers clinicians several choices to treat patients with residual cortisol excess following the surgery. The U.S. Food and Drug Administration (FDA) has approved the antiprogestin Korlym (mifepristone) for control of hyperglycemia secondary to hypercortisolism in adults with endogenous Cushing’s syndrome who have type 2 diabetes/glucose intolerance and have not responded to, or are not candidates for, surgery.
Medical Necessity · 2020 · IMR MN20-32902

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient requested authorization and coverage for Korlym 300 mg.Korlym (mifepristone) is a cortisol receptor blocker indicated to control hyperglycemia secondary to hypercortisolism in adult patients with endogenous Cushing's syndrome who have type 2 diabetes mellitus or glucose intolerance and have failed surgery or are not candidates for surgery. Cushing syndrome results from supraphysiological exposure to glucocorticoids and is associated with significant morbidity and mortality. First-line screening tests, including pituitary magnetic resonance imaging (MRI), a 1 mg dexamethasone suppression test, 24-hour urinary free cortisol excretion, and /or an inferior petrosal sinus sampling (IPSS), should be performed to screen for endogenous Cushing syndrome.
Medical Necessity · 2023 · IMR MN23-40678
Nature of Statutory Criteria/ Case Summary: The enrollee is requesting authorization and coverage for the medication, Korlym. The enrollee has obesity, uncontrolled diabetes and hypertension. Their blood sugar became difficult to manage with the medication regimen and the endocrinologist suspected they might have hypothyroidism or Cushing’s syndrome. A follow-up thyroid function test (blood work) and a standard 1mg dexamethasone suppression test were ordered. While the enrollee’s thyroid function test resulted in normal values, the enrollee was found to have mildly suppressed cortisol and ACTH levels. The physician indicated the enrollee's dexamethasone suppression test was positive and a CT scan of the adrenal gland was to be performed to see if the enrollee had a tumor; if not, the enrollee was to be put on Korlym.
Medical Necessity · 2019 · IMR MN19-31419

Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California outcomes — every state runs an equivalent external review, but the rates here are California’s. Excerpts are quoted verbatim from the public record and describe this treatment generally, not any individual case.

How to use this in your appeal

These are outcomes from California’s external review program — an independent physician panel that binds the insurer. Every state has an equivalent process, and internal appeals succeed even more often. Cite the outcome record for Korlymwhen you appeal: reviewers routinely find that denials like yours didn’t hold up.

SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · DERIVED AGGREGATE STATISTICS ONLY · 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.

Denied Korlym? 35.7% got it reversed.

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