Mental Health Parity Act — Explained in Plain English

Your insurer must cover mental health the same as physical health. When it doesn't, that is a federal violation.

[Alex Rivera

Appeals Specialist and Author](/team/claimcompass)

4

min. read

June 25, 2026

The Short Version

Your health insurance is required by federal law to cover mental health care the same way it covers physical health care. If it doesn't —that is a violation of the law. And you can fight it.

That law is the Mental Health Parity and Addiction EquityAct, known as the MHPAEA.

What Parity Means in Practice

Parity means equal treatment. Not identical — but equal in terms of the restrictions and limitations applied.

Here is a simple test: find a physical health benefit inyour plan that is similar to the mental health benefit that was denied. Now compare the rules. If the rules for mental health are stricter — more prior authorizations, lower visit limits, narrower networks, harder to qualify — thatis a parity violation.

Example 1 Your plan covers unlimited physical therapy visits for a back injury.

But it limits mental health therapy to 20 sessions per year. That is a parity violation.

Example 2 Your plan approves inpatient cardiac rehabilitation without requiring prior authorization after the first day.

But it requires prior authorization for every day of inpatient psychiatric care. That is a parity violation.

Example 3 Your plan covers residential physical rehabilitation for stroke recovery.

But it denies residential treatment for substance use disorder as not medically necessary. That may be a parity violation.

What the Law Covers

• Therapy  — individual, group, family
• Inpatient psychiatric care
• Residential mental health and substance use treatment
• Substance use disorder treatment — detox, rehab, outpatient
• ABA therapy for autism spectrum disorder
• Eating disorder treatment
• Prescription medications for mental health conditions

The Three Types of Parity

Financial parity

Your copays, deductibles, andout-of-pocket costs for mental health cannot be higher than for comparable physical health services.

Quantitative parity

Visit limits, day limits, and frequency limits for mental health cannot be more restrictive than comparable physical health limits.

Non-quantitative parity

This is the most important and most violated type. Prior authorization requirements, step therapy, network composition, and coverage criteria for mental health cannot be applied more restrictively than to comparable medical services.

What to Do If Your Mental Health Claim Is Denied

Step 1

Request the specific reason for the denial in writing.

Step 2

Request the plan's non-quantitative treatment limitation analysis — a document the insurer must provide showing how it applies its criteria to mental health versus comparable medical benefits.

Step 3

Identify a comparable physical health benefit and document that the same restrictions are not applied to it.

Step 4

File a formal appeal citing the MHPAEA violation explicitly.

How ClaimCompass Helps

ClaimCompass identifies parity violations in your mental health denial and builds your appeal around your federal rights.

Upload your mental health denial at myclaimcompass.ai for afree analysis.

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