Does parity law apply to my Anthem plan?

Most Anthem plans must follow the federal parity law, which prohibits stricter limits on mental health and substance-use care than on comparable medical care. Cite it directly in your appeal.

Can I appeal a residential treatment denial?

Yes. Ask for the exact level-of-care criteria used and have your provider document why a lower level of care would be unsafe.

Guides · Anthem · appeals · Updated July 2026

How to appeal an Anthem mental health denial

Anthem (Elevance) often reviews higher levels of mental health care — residential, partial hospitalization, and intensive outpatient — against strict level-of-care criteria. Federal parity law bars stricter limits than comparable medical care, which gives these denials a strong appeal angle.

Why Anthem denies this

Anthem frequently denies residential or intensive mental-health and substance-use care as "not medically necessary" or "treatable at a lower level of care," applying proprietary or MCG-style criteria through its behavioral-health arm (Carelon). These decisions often understate risk factors and overlook parity requirements.

What wins the appeal

Invoke the federal Mental Health Parity and Addiction Equity Act — the plan can't apply tougher criteria to mental health than to comparable medical care. Get provider records documenting risk (suicidality, failed outpatient attempts, co-occurring conditions) and a letter matching each denied level-of-care criterion. Request the specific guidelines used. File within 180 days (65 for Medicare Advantage).

Your deadline

Depends on your plan type: 180 days for most employer and marketplace plans, 120 for Original Medicare, ~90 for Medicaid, and only 65 for Medicare Advantage. Set it before you do anything else.

Don't fight it alone — and don't miss the deadline

AppealClock translates your denial, drafts your appeal letter, and watches every deadline so you can't miss it. Free, no account, your medical details never leave your device.

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Common questions

Does parity law apply to my Anthem plan?: Most Anthem plans must follow the federal parity law, which prohibits stricter limits on mental health and substance-use care than on comparable medical care. Cite it directly in your appeal.
Can I appeal a residential treatment denial?: Yes. Ask for the exact level-of-care criteria used and have your provider document why a lower level of care would be unsafe.