Mental health services are critical for patient well-being, and accurate medical billing ensures providers are compensated fairly. Among the most frequently used codes in psychotherapy is CPT Code 90833, which applies to individual therapy sessions with an additional 30 minutes of integrated behavioral health services.
This article provides an in-depth, on CPT code 90833, covering its definition, modifiers, billing rules, reimbursement rates, and key differences from similar codes. Whether you’re a psychiatrist, psychologist, licensed clinical social worker (LCSW), or billing specialist, this guide will help you optimize claims and avoid denials.
CPT Code 90833
What Is CPT Code 90833?
CPT Code 90833 is a psychiatric billing code used for individual psychotherapy sessions lasting 45-50 minutes that include integrated behavioral health services. It is an add-on code, meaning it must be reported alongside a primary evaluation and management (E/M) code (e.g., 99213, 99214).
Key Features of CPT 90833
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Duration: 45-50 minutes (30 minutes of therapy + 15-20 minutes of E/M services).
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Service Type: Psychotherapy with medical evaluation.
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Commonly Used By: Psychiatrists, psychiatric nurse practitioners, and therapists.
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Coverage: Accepted by Medicare, Medicaid, and most private insurers.
When to Use CPT 90833
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When a patient receives both medical management and psychotherapy in the same session.
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For depression, anxiety, bipolar disorder, and other mental health conditions requiring combined treatment.
Does CPT Code 90833 Need a Modifier?
Modifiers clarify billing scenarios and prevent claim denials. CPT 90833 does not always require a modifier, but certain situations may necessitate one:
Common Modifiers for CPT 90833
| Modifier | Description | When to Use |
|---|---|---|
| -25 | Significant, separately identifiable E/M service | Used when billing with an E/M code (e.g., 99214-25 + 90833). |
| -95 | Telehealth service | For virtual therapy sessions (post-pandemic policies vary by insurer). |
| -59 | Distinct procedural service | Rarely used; only if two separate services are provided. |
Best Practice: Always check payer-specific guidelines, as Medicare and private insurers may have different modifier requirements.
CPT Code 90833 Description
CPT 90833 is officially defined as:
“Psychotherapy, 30 minutes with patient and/or family member when performed with an evaluation and management service (List separately in addition to the code for primary procedure).”
Components of a 90833 Session
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Medical Assessment (E/M Component)
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Review of symptoms.
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Medication management.
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Risk assessment (e.g., suicidality).
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Psychotherapy Component
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Cognitive Behavioral Therapy (CBT).
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Trauma-focused interventions.
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Crisis counseling.
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Example: A psychiatrist spends 20 minutes adjusting a patient’s antidepressant dosage (E/M) and 30 minutes conducting CBT for anxiety (psychotherapy). This qualifies for 99214 + 90833.
CPT Code 90833 Billing Guidelines
Proper billing prevents audits and denials. Follow these rules:
1. Documentation Requirements
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Separate notes for E/M and psychotherapy.
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Time tracking (start/end times for each component).
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Medical necessity (justify why both services were needed).
2. Bundling Rules
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Cannot bill 90833 alone—must pair with an E/M code.
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No duplicate billing (e.g., 90832 + 90833 in the same session).
3. Insurance-Specific Policies
| Payer | Policy |
|---|---|
| Medicare | Requires modifier -25 for E/M + 90833. |
| Medicaid (varies by state) | Some states limit 90833 to psychiatrists only. |
| Commercial Insurers (e.g., Aetna, UnitedHealthcare) | May require prior authorization. |
CPT Code 90833 vs. 90832
Understanding the differences between these codes ensures accurate billing.
| Feature | CPT 90832 | CPT 90833 |
|---|---|---|
| Description | Psychotherapy, 30 minutes (standalone). | Psychotherapy + E/M (add-on code). |
| Duration | 30-37 minutes. | 45-50 minutes (30 therapy + E/M). |
| Billing | Can be billed alone. | Must be billed with E/M code. |
| Use Case | Therapy-only sessions. | Combined medication management + therapy. |
Example:
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90832: A therapist provides 35 minutes of CBT without medication review.
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90833: A psychiatrist spends 20 minutes adjusting meds and 30 minutes on therapy.
CPT Code 90833 Reimbursement Rate
Reimbursement varies by payer, location, and provider type.
2024 National Average Reimbursement
| Payer | Rate (USD) |
|---|---|
| Medicare | $75 – $110 |
| Medicaid | $50 – $90 |
| Private Insurance | $90 – $150 |
Factors Affecting Reimbursement:
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Geographic adjustments (higher in urban areas).
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Provider credentials (MDs often paid more than LCSWs).
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Telehealth vs. in-person.
Conclusion
CPT 90833 is essential for mental health providers offering combined therapy and medical management. Proper documentation, modifier use, and adherence to payer policies maximize reimbursements while minimizing denials. Understanding its differences from 90832 ensures accurate billing. Always verify insurer-specific rules to optimize revenue cycles.
FAQs
1. Can I bill 90833 without an E/M code?
No, 90833 is an add-on code and must be reported with a primary E/M service.
2. Does 90833 cover family therapy?
Yes, if family members are involved in the psychotherapy portion.
3. How often can I bill 90833?
Frequency depends on medical necessity—some insurers limit it to once per day.
4. Is 90833 covered for telehealth?
Yes, but use modifier -95 and confirm payer telehealth policies.
Additional Resources
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AMA CPT Codebook – Official CPT guidelines.
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CMS Medicare Billing Manual – Reimbursement rules.
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APA Billing Resources – Psychiatry-specific guidance.
