PHP ED denied as experimental or investigational by Cigna?

Cigna's specific coverage criteria for php ed are defined in its own published medical/coverage policy and the FDA-approved prescribing label. A successful appeal documents that your medical records satisfy each criterion those sources list — confirmed diagnosis, any required prior treatments (with dates and outcomes), and clinical severity. If the exact criteria weren't included with your denial, request them in writing; your appeal then maps each requirement to the matching fact in your chart.

## Why Cigna May Label PHP/ED Treatment Experimental — and How to Appeal

A denial labeling a Partial Hospitalization Program or structured Eating Disorder treatment program as "experimental" or "investigational" is one of the most contestable denial types available, because PHP for eating disorders is a well-established, guideline-supported level of care with decades of clinical use. This denial is most likely to appear when a specific component of a PHP program — a particular therapy modality, a new measurement tool, or an intensive outpatient variant — is flagged by Cigna's automated criteria as lacking sufficient evidence.

### Why This Denial Is Appealable

For an experimental denial to hold, Cigna must demonstrate that the service lacks acceptance in the relevant medical community or that the evidence base is insufficient by its own criteria. PHP for eating disorders is endorsed by major professional organizations in the eating disorder and psychiatric fields. An "experimental" label applied to the program as a whole is almost certainly incorrect. Even if a specific modality within the program is newer, the overall clinical need for intensive structured treatment does not become experimental.

The Mental Health Parity and Addiction Equity Act (MHPAEA) is also relevant: Cigna's experimental/investigational criteria for mental health and eating disorder treatment must be no more restrictive than those it applies to comparable medical and surgical services.

### Federal Appeal Framework

• Internal appeal: File promptly per the denial letter. Request in writing the specific policy number, the clinical evidence review Cigna used, and the names of any clinical reviewers.
• External review (ACA §2719 / ERISA §503): Experimental/investigational denials are expressly eligible for external review under ACA §2719. File within approximately 4 months of the final internal denial. An accredited IRO will review whether the service truly lacks acceptance in the medical community.
• Expedited option: If the eating disorder presents an acute risk (medical instability, rapid weight loss, suicidal ideation), request expedited external review.

### Documentation to Gather

1. Program description — the PHP provider's written description of all treatment modalities, confirming each is an established clinical approach. 2. Professional society endorsement — references to the applicable eating disorder society, psychiatric association, or academy guidelines endorsing PHP as a standard level of care (cite organizations, not statistics). 3. Treating clinician letter — a psychiatrist or eating-disorder specialist's letter stating that the proposed treatment is consistent with accepted standards of care. 4. Cigna's experimental criteria — request the exact criteria applied and demand a point-by-point explanation of how the program fails them.

### Criteria-Mapping Structure

For each element of Cigna's experimental criteria, provide a column citing established clinical practice support: professional society guidelines by organization, FDA clearance status of any device used, and peer-reviewed literature (without citing specific statistics).