CPT Code 90792: The Complete Guide to Psychiatric Evaluation With Medical Services

If you're a psychiatrist, psychiatric nurse practitioner, or psychiatric PA billing for initial evaluations, CPT code 90792 is one of the most important codes in your entire fee schedule. Get it right, and you're capturing the full clinical and medical complexity of what you actually do. Get it wrong — or default to 90791 when 90792 is appropriate — and you're leaving real reimbursement on the table while potentially misrepresenting your services to payers.

This guide breaks down everything you need to know: who can bill it, what documentation it actually requires, how reimbursement compares across payers, and the most common audit triggers to avoid.

What Is CPT Code 90792?

CPT code 90792 is defined by the American Medical Association (AMA) as:

"Psychiatric diagnostic evaluation with medical services."

It's the complement to 90791 (psychiatric diagnostic evaluation without medical services). The critical difference is that 90792 includes a medical evaluation component — think physical systems review, medication assessment, ordering or reviewing labs, and medical decision-making that falls within a prescriber's scope of practice.

In plain language: 90792 is the code for a comprehensive initial psychiatric evaluation performed by a clinician who can prescribe medication.

This is not a therapy code. It is not a follow-up code. It is a single-session, diagnostic evaluation code used at the start of a new patient relationship — or in specific circumstances when a new diagnostic evaluation is warranted.

Who Can Bill CPT 90792?

This is where 90791 vs. 90792 splits cleanly, and it matters enormously for your practice.

Providers who CAN bill 90792:

Psychiatrists (MD/DO)
Psychiatric Nurse Practitioners (PMHNPs) — within their scope
Physician Assistants with psychiatric training/supervision
Some Clinical Nurse Specialists (CNS) with prescribing authority

Providers who CANNOT bill 90792 (and should use 90791 instead):

Licensed Professional Counselors (LPCs)
Licensed Clinical Social Workers (LCSWs)
Licensed Marriage and Family Therapists (LMFTs)
Psychologists (PhD/PsyD) — in most states
Non-prescribing therapists of any credential

The distinction isn't about how thorough your evaluation is. It's about whether medical services — meaning a medical component such as medication management, physical examination considerations, lab review, or medical history integration — are a part of what you're delivering.

If you're an LCSW doing a stellar, 90-minute intake and documenting every biopsychosocial domain, you still bill 90791. The medical services component is what gates 90792.

CPT 90792 Reimbursement Rates: What Does It Actually Pay?

Let's talk numbers, because this is what drives real decisions.

2025 Medicare Physician Fee Schedule (National Average)

Code	Description	Non-Facility Rate	Facility Rate
90791	Psych Eval, No Medical Services	~$160–$175	~$120–$135
90792	Psych Eval With Medical Services	~$210–$235	~$160–$180
99205	New Patient E/M, High Complexity	~$297–$310	~$215–$230

Note: Exact rates vary by geographic locality (GPCI adjustments). Always verify on the CMS Physician Fee Schedule Look-Up Tool for your ZIP code.

The premium for 90792 over 90791 runs approximately $40–$70 per claim on Medicare alone. Across a busy psychiatry practice seeing 10–15 new patients per month, that's a meaningful annual difference — $5,000 to $12,000+ — simply from billing the correct code.

Commercial Payer Rates

Commercial payers vary widely, but most credentialed behavioral health contracts tie reimbursement to a percentage of Medicare or have carved-out behavioral health rates negotiated through managed behavioral health organizations (MBHOs) like Optum/UBH, Beacon Health Options (now Carelon), Magellan, and Aetna Behavioral Health.

Typical commercial rates for 90792 range from $175 to $350+ depending on:

Your contract terms and network tier
Geographic region (urban vs. rural)
Provider type (MD vs. NP)
Whether the carve-out MBHO or medical plan administers benefits

Medicaid rates are state-dependent and typically the lowest, ranging from $95 to $175 for 90792 in most states.

90791 vs. 90792: Side-by-Side Comparison

This is the comparison that saves practices from either underbilling or misbilling.

Feature	90791	90792
Medical services component	❌ No	✅ Yes
Prescriber required	❌ No	✅ Yes
Therapists can bill	✅ Yes	❌ No
Psychiatrists can bill	✅ Yes	✅ Yes
Medication management included	❌ No	✅ Yes
Lab review / ordering	❌ No	✅ Yes
Typical Medicare rate	~$165–$175	~$215–$235
Time requirement	No set minimum	No set minimum
New patient only	Primarily	Primarily
Documentation complexity	Moderate	Higher

What Documentation Does 90792 Actually Require?

This is where claims get denied and audits get triggered. The documentation for 90792 must support both the psychiatric evaluation and the medical services component. That means your note cannot look like a therapy-style intake — it needs to reflect the clinical complexity of a prescriber.

Here's what your 90792 documentation should include:

1. Chief Complaint and Reason for Evaluation

Clear, specific. Why is this patient seeking a psychiatric evaluation today?

2. History of Present Illness (HPI)

Detailed narrative of current symptoms: onset, duration, severity, modifying factors, associated symptoms. Don't just list diagnoses — describe the clinical picture.

3. Psychiatric History

Prior diagnoses, hospitalizations, outpatient treatment history, previous medication trials (and responses/side effects), ECT, or other interventions.

4. Medical History

This is what separates 90792 from 90791. Document relevant medical conditions, chronic illnesses, surgeries, and how they intersect with the psychiatric presentation. Thyroid disease affecting mood? Chronic pain and opioid use? Sleep apnea and depression? Connect the dots.

5. Medications Review

Current medications (psychiatric and medical), dosages, prescribers, adherence patterns, and known allergies or adverse reactions.

6. Family History

Psychiatric and relevant medical history in first-degree relatives.

7. Social History

Education, employment, living situation, substance use history, trauma history, legal history, cultural and spiritual factors.

8. Review of Systems (ROS)

A systems-based review relevant to the presenting complaints — this is a medical documentation standard and should be documented explicitly, not just implied.

9. Mental Status Examination (MSE)

Appearance, behavior, speech, mood, affect, thought process, thought content, perceptual disturbances, cognition, insight, judgment, and suicidality/homicidality assessment.

10. Risk Assessment

Formalized suicidal ideation, self-harm, and homicidal ideation assessment with protective and risk factors identified.

11. Medical Decision-Making / Diagnostic Impressions

DSM-5-TR diagnoses with diagnostic reasoning. This is where your clinical expertise shows — link symptoms to criteria, rule out differentials, and note medical contributors.

12. Treatment Plan With Medical Component

The plan should include medication considerations — whether initiating, adjusting, monitoring, or declining pharmacotherapy — along with labs ordered or reviewed, referrals, and follow-up plan.

Pro tip: If your treatment plan just says "therapy referral, follow up in 4 weeks" with no medication or medical component addressed, you've written a 90791 note in a 90792 claim. That's a documentation mismatch that creates audit exposure.

Common Billing Errors and Audit Triggers for 90792

Payers — especially Medicare and Medicaid — have sophisticated claim pattern analysis. Here are the most common 90792 billing problems we see:

1. Billing 90792 When You're Not a Prescriber

This happens in group practices where a therapist's NPI is accidentally attached to a 90792 claim, or when billing staff don't know the credential-to-code mapping. It's a direct compliance violation.

2. Missing Medical Documentation to Support Medical Services

The most common audit finding. You billed 90792, but the note has no medication history, no medical history review, no ROS, and no medication-related treatment plan element. The "with medical services" descriptor is not supported.

3. Billing 90792 + E/M Codes on the Same Day

You generally cannot bill 90792 with E/M codes (99202–99215) on the same day for the same patient. The medical component is bundled into 90792. Add-on abuse of E/M codes alongside 90792 is a known audit flag.

4. Billing 90792 for Established Patients

90792 is for new evaluations, typically a new patient or a new episode of care requiring a full diagnostic re-evaluation. Billing it annually "just because" without clinical justification is a pattern payers scrutinize.

5. Upcoding Frequency

If your practice shows 95–100% of initial evaluations billed as 90792, and you have non-prescribing clinicians in the mix, that statistical outlier will get noticed.

Can You Bill 90792 With Add-On Codes?

Sometimes, yes. Here are the legitimate add-on scenarios:

Interactive complexity (+90785): Can be appended to 90792 when specific communication factors are present (e.g., involvement of third parties like guardians, use of interpreters, mandated patients with evidence of risk, or patients with maladaptive communication). This adds approximately $20–$35 to the reimbursement.
Prolonged services codes: In certain circumstances with documented extended time, some payers allow add-on prolonged service codes — but verify with each payer before appending.

Do not append:

90791 and 90792 together
E/M codes (99202–99215) on the same date of service
Psychotherapy add-on codes (90833, 90836, 90838) — these are for follow-up E/M visits, not diagnostic evaluations

Telehealth Billing for 90792

Good news: 90792 is fully billable via telehealth for Medicare, Medicaid, and most commercial payers as of current rules. The pandemic-era telehealth flexibilities that expanded psychiatric care access have been extended and in many cases made permanent.

For Medicare telehealth billing of 90792:

Append modifier 95 (synchronous telehealth) for live audio-video sessions
Modifier GT may be required by some payers — verify by payer
Place of service code 02 (telehealth, other than patient's home) or 10 (patient's home) depending on patient location
Audio-only 90792 is covered by Medicare under certain conditions with modifier 93 — verify current guidance as policies evolve

90792 in Group Practice Settings: Coordination Tips

In multi-disciplinary group practices where both prescribers and therapists work under the same tax ID, clean 90792 billing requires tight workflow controls:

Credential-to-code mapping in your EHR: Make sure your billing system knows which NPIs are prescribers vs. non-prescribers and flags mismatches.
Template differentiation: Prescribers and therapists should have different intake note templates — 90792 templates must include medical history, ROS, and medication sections.
Supervising provider rules: If a PMHNP is supervised by a psychiatrist and billing under the supervising MD's NPI, ensure incident-to billing rules are met where applicable (though behavioral health is largely exempt from incident-to requirements).
Credentialing accuracy: Verify that your PMHNPs are credentialed with payers as prescribers, not just as therapists — this affects which codes payers will accept from that NPI.

Frequently Asked Questions About CPT Code 90792

Q1: Can a nurse practitioner bill CPT 90792?

Yes — Psychiatric Mental Health Nurse Practitioners (PMHNPs) with prescribing authority can bill 90792. However, they must be credentialed with each payer as a prescriber. Some payers require NPs to meet specific supervision or collaboration requirements depending on the state's scope-of-practice laws. Always verify credentialing status before billing 90792 under an NP's NPI.

Q2: How many times can you bill 90792 for the same patient?

There's no hard annual limit written into CPT rules, but payers expect 90792 to be billed for a new patient evaluation or a new episode of care requiring a full diagnostic reassessment. Billing it repeatedly for established patients without compelling clinical justification will trigger medical necessity reviews. Most payers expect a minimum of 1–3 years between 90792 claims for the same patient, absent a documented clinical rationale (e.g., new-onset condition, significant clinical deterioration requiring re-evaluation).

Q3: What's the difference between 90792 and 99205?

Both are new-patient codes with significant documentation requirements, and both involve medical decision-making. The key differences: 90792 is specific to psychiatric diagnostic evaluation and lives in the behavioral health coding space. 99205 is a general E/M code (office visit, new patient, high complexity) used across all specialties. Psychiatrists sometimes bill 99205 when the encounter is primarily medical management rather than a diagnostic evaluation. You generally cannot bill both on the same day. When in doubt, 90792 is the more specific — and typically more appropriate — code for an initial psychiatric evaluation.

Q4: Does 90792 require a specific amount of time?

No. CPT 90792 is not time-based — it's based on the nature and content of the service. The evaluation must include both the psychiatric diagnostic component and the medical services component. However, documenting your time is still good practice for audit defense and for supporting add-on codes like interactive complexity (90785).

Q5: What happens if I've been billing 90791 when I should have billed 90792?

This is underbilling — a compliance issue that's less severe than overbilling but still problematic. If you're a prescriber who has been consistently billing 90791 for initial evaluations that clearly included medication assessment and medical history integration, you may have grounds for a prospective correction (billing correctly going forward). A retroactive correction or rebilling would require careful review with your compliance officer or billing consultant. The practical fix is to audit a sample of recent 90792-eligible claims, update your note templates to capture the medical component explicitly, and implement a billing audit process going forward.

Q6: Can 90792 be billed for a second opinion consultation?

This depends on the payer and the clinical context. If the second opinion constitutes a full new psychiatric diagnostic evaluation (new to your practice, full diagnostic workup performed), most payers will accept 90792. If it's a brief consultation or record review, a different code structure may apply. Always document the medical necessity clearly in the note.

The Bottom Line: Accurate 90792 Billing Starts With Better Documentation

CPT code 90792 is not complicated in concept — it's an initial psychiatric evaluation performed by a prescriber, inclusive of medical services. But in practice, the margin between a clean claim and a denial, between solid documentation and audit exposure, comes down to how consistently and specifically you document the medical component in every qualifying evaluation note.

The biggest risk we see across psychiatric practices isn't intentional fraud — it's documentation drift. A prescriber who absolutely does perform medication assessment, medical history review, and clinical decision-making around pharmacotherapy, but whose notes don't explicitly reflect that work. The claim looks weak. The audit doesn't go well. The revenue cycle suffers.

Your clinical work is already there. The documentation just needs to match it.

Let Mozu Health Make 90792 Documentation Seamless

That's exactly where Mozu Health comes in.

Mozu Health is an AI-powered clinical documentation platform built specifically for behavioral health practitioners — psychiatrists, PMHNPs, therapists, and group practices. Our intelligent documentation engine:

Generates HIPAA-compliant 90792 evaluation notes that capture all required components — HPI, medical history, ROS, MSE, risk assessment, and medication-integrated treatment plans
Flags documentation gaps in real time before you sign — so your 90792 notes always support your 90792 claims
Differentiates note templates by provider type and credential — prescribers get 90792-appropriate templates, therapists get 90791-appropriate templates, automatically
Supports audit defense with thorough, time-stamped documentation that stands up to payer scrutiny
Integrates with your billing workflow to reduce upcoding, underbilling, and code-documentation mismatches

Whether you're a solo psychiatrist managing your own documentation or a group practice with 20+ clinicians billing across multiple payer contracts, Mozu Health gives you the compliance infrastructure to bill accurately and document confidently.

Ready to stop leaving money on the table — and stop losing sleep over audit risk?

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This article is for educational purposes and does not constitute legal or billing compliance advice. Always verify current CPT codes, payer policies, and reimbursement rates with your billing team, payer contracts, and the CMS Physician Fee Schedule.

CPT Code 90792: Complete Guide to Psychiatric Evaluation With Medical Services