The Ultimate Guide to Psychiatry CPT Codes
CPT coding for psychiatry can feel overwhelming — especially with overlapping evaluation and management (E/M) and therapy codes. Getting them wrong can lead to claim denials or underpayments.
This guide breaks down the most important psychiatry CPT codes you need to know, along with examples, documentation tips, and billing best practices for 2025.
Understanding Psychiatry CPT Codes
Psychiatry billing includes two main code categories:
- Evaluation and Management (E/M) Codes — for psychiatric diagnostic evaluations and medication management.
- Psychotherapy Codes — for individual, group, or family therapy sessions.
Often, both are billed together when therapy and evaluation occur during the same session.
Common CPT Codes for Psychiatrists
1. 90791 – Psychiatric Diagnostic Evaluation
Used for initial assessments (no medical services).
Typical Use: First visit with a new patient for diagnosis and evaluation.
2. 90792 – Psychiatric Diagnostic Evaluation with Medical Services
Used when the psychiatrist performs a full evaluation plus medical management.
3. 99213 / 99214 / 99215 – E/M Codes
Used for ongoing medication management and follow-ups.
- 99213: Low complexity (10–15 min)
- 99214: Moderate complexity (20–30 min)
- 99215: High complexity (40+ min)
4. 90832 / 90834 / 90837 – Psychotherapy Codes
- 90832: 30 minutes
- 90834: 45 minutes
- 90837: 60 minutes
5. 90833 – Psychotherapy Add-On (with E/M Service)
Used when therapy is provided alongside medication management (e.g., 99214 + 90833).
6. 90846 / 90847 – Family or Couples Therapy
- 90846: Without patient present
- 90847: With patient present
7. 90785 – Interactive Complexity Add-On
Used when communication challenges exist (e.g., children, trauma cases, third-party involvement).
Documentation Tips for Psychiatry Billing
- Clearly separate E/M and therapy time in notes.
- Include total time, content discussed, and medical decision-making.
- For 90833, document distinct therapy elements beyond medication management.
- Always justify the use of 90785 with examples (e.g., interpreter, emotional dysregulation).
Common Psychiatry Billing Mistakes to Avoid
❌ Using 90837 without adequate session time (less than 53 minutes).
❌ Billing 90833 without supporting psychotherapy documentation.
❌ Mixing E/M and therapy codes incorrectly.
❌ Forgetting to apply modifier 25 when required.
Psychiatry CPT Code Billing Example
Scenario:
A psychiatrist provides a 25-minute medication review and 20 minutes of psychotherapy.
Correct Coding:
- 99214 (E/M moderate complexity)
- +90833 (psychotherapy add-on)
- Modifier 25 if required by payer
Staying Updated with CPT Code Changes
CPT codes evolve every year. Always check:
- AMA CPT Code updates (January each year)
- Payer bulletins for policy changes
- Medicare Local Coverage Determinations (LCDs)
Simplify Psychiatry Billing with QuantiSurge
At QuantiSurge Billing, we help psychiatrists and mental health providers submit clean, accurate claims using the right CPT combinations.
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Frequently Asked Questions
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When should I use 90833?
Use 90833 when psychotherapy is performed alongside E/M services like medication management.
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