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Congenital Deformity: when insurers say no, reviewers often say yes

In 45 published external-review decisions involving congenital deformity, independent physician reviewers overturned the insurer’s denial 64.4% of the time.

Published decisions
45
2001–2026
Overturned
64.4%
29 denials reversed

Most-fought treatments for congenital deformity

What insurers denied — and how those fights ended.
CategoryDecisionsOverturned
Cranial Helmet11
72.7%
Genetic Genomic Test3
66.7%

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.
41
63.4%
Experimental/Investigational
The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument.
4
75%
Typical time to a decision
21 days
Most land between 20 and 23 days
Handled as urgent
17.8%
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 cranial orthotic helmet. The Health Plan has denied this request indicating that the requested equipment is not medically necessary for treatment of the enrollee’s abnormal head shape (plagiocephaly).Findings: There is scientific evidence demonstrating that the requested equipment is effective in this clinical setting. Positional plagiocephaly and deformational brachycephaly are broad terms used to encompass abnormal head shape due to a wide variety of etiologies. Prenatal causes include resting of the fetal head against a hard surface such as the mother’s pelvis or the limb of a sibling in a multiple gestation pregnancy for a prolonged period of time. Postnatal causes are more common and include congenital torticollis, vertebral anomalies, neurologic impairment, or forced sleep position.
Medical Necessity · 2018 · IMR MN18-28517
Findings: The physician reviewer found that Nature of Statutory Criteria/Case Summary: The patient’s parent has requested reimbursement for a cranial remolding helmet. The submitted documentation supports the medical necessity of the equipment at issue. Positional plagiocephaly and deformational brachycephaly are broad terms used to encompass abnormal head shape due to a wide variety of etiologies. Prenatal causes may include the resting of the fetal head against a hard surface, such as the mother’s pelvis or the limb of a sibling in a multiple gestation pregnancy, for a prolonged period, while postnatal causes are more common and may include congenital torticollis, vertebral anomalies, neurologic impairment, or forced sleep positions.
Medical Necessity · 2023 · IMR MN23-39452

Where the denial was upheld

Worth reading too — these show what an appeal has to overcome.
The patient is a nine-year-old male with a history of speech delays including expressive and receptive language deficits and decreased auditory memory and processing skills. He also has decreased intelligibility of his speech. By report, these deficits have affected his reading skills. No medical records are provided with details regarding other developmental milestones or medical history. The March 2005 evaluation noted that hearing is reported to be normal. The patient initially received three sessions of speech therapy beginning in March 2005, then resumed therapy in August 2005 through February 2006.
Medical Necessity · 2006 · IMR MN06-5621
Nature of Statutory Criteria/Case Summary: The parent of a patient has requested authorization and coverage for a Whole Exome Plus Analysis. The American College of Medical Genetics and Genomics (ACMG) published a guideline on the use of exome and genome sequencing in pediatric patients. The guideline recommends exome sequencing and genome sequencing as a first-tier or second-tier test for patients with one or more congenital anomalies prior to one year of age. The guideline notes, “Consistent with existing guidelines/recommendations/position statements, patients with clinical presentations highly suggestive of a specific genetic diagnosis should undergo targeted testing first.” This patient presents with bilateral congenital iris cysts, ciliary body involvement, and anterior chamber anomalies.
Experimental/Investigational · 2025 · IMR EI25-44438

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 condition generally, not any individual case.

How to use this in your appeal

These outcomes come from California’s external review program — an independent physician panel whose decision binds the insurer. Every state has an equivalent, and internal appeals succeed even more often. If your care for congenital deformity was denied, the published record says the denial is worth fighting.

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.

Fighting a denial for congenital deformity? 64.4% won.

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