CPT 90791 Billing Services
CPT 90791 is the intake — a psychiatric diagnostic evaluation without medical services. It sets up every claim that follows, so a clean 90791 matters.
Get a free 90791 billing reviewHow 90791 gets billed cleanly
Each step is documented — miss one and the claim is denied.
What CPT 90791 covers
CPT 90791 covers a psychiatric diagnostic evaluation — the initial biopsychosocial assessment that establishes history, presenting problem, mental status and a working diagnosis. It does not include medical services such as prescribing (that is 90792).
Payers generally allow one 90791 per episode of care, and many will not pay 90791 and a psychotherapy code on the same day by the same provider. Getting the evaluation documented and dated correctly is what prevents a rejected intake.
Furnished by psychologists, LCSWs, LPCs, LMFTs and other licensed behavioral-health clinicians (a non-medical evaluation).
Billing requirements at a glance
| Requirement | What EnVisionMD verifies before submitting |
|---|---|
| Complete assessment | History, mental status exam and a documented diagnostic impression |
| Provider scope | Rendering clinician is licensed and enrolled for the plan |
| Frequency | Usually one per episode of care — re-evaluations must be justified |
| Same-day rule | Not billed with psychotherapy same day by the same provider (most payers) |
Common 90791 denials — and how we prevent them
| Why it is flagged | How we avoid it |
|---|---|
| Second 90791 too soon | Re-evaluation is documented and clinically justified |
| Billed with therapy same day | Same-day pairing is checked against payer policy |
| Evaluation incomplete | Assessment elements confirmed before the claim goes out |
| Wrong provider type | Use 90792 when medical services are involved |
Related codes we also bill
Behavioral-health billing rarely uses one code alone — these sit alongside 90791, each with its own page.
How EnVisionMD RCM bills 90791 for your practice
We run behavioral-health billing end to end — eligibility, telehealth POS and modifiers, time and medical-necessity documentation, prior-auth tracking and clean claim submission — so 90791 gets paid and stays off the auditor’s radar.
Request my free 90791 billing reviewCPT 90791 — frequently asked questions
It bills the initial psychiatric diagnostic evaluation — a biopsychosocial intake assessment without medical services.
90791 is a non-medical evaluation; 90792 is the same evaluation performed with medical services (e.g., by a psychiatrist or NP who can prescribe).
Typically once per episode of care. A repeat evaluation must be clinically justified and documented.
Most payers do not allow the same provider to bill 90791 and a psychotherapy code on the same day — we verify each payer's rule.
Yes, with the correct telehealth place of service and modifier where required by the payer.