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90791Behavioral Health

Psychiatric diagnostic evaluation

Prior authorization
Not commonly required

What this is, in plain language

An initial intake visit with a mental-health clinician to gather history and establish a diagnosis and treatment plan.

Why a clinician orders it

Starting care with a new mental-health provider.

Medical necessity — what insurers usually look at

Typically a one-time code per episode of care; some plans require it before therapy or medication management can be billed.

Documentation to ask about

  • Clinician credentials
  • Diagnosis
  • Recommended plan of care

Questions for your provider

  • ?Is the clinician credentialed with my plan?
  • ?What is my copay or coinsurance for behavioral-health visits?

Terms you'll see

Medical NecessityRead more →

The insurer is reviewing whether the service is clinically appropriate for your situation.

Important: AuraCode is an educational tool. It does not provide medical, legal, or insurance advice, claims decisions, or approval guarantees. Final coverage depends on your specific plan, eligibility, diagnosis, submitted documentation, and your insurer's review.