Quick reference
- When to use
- Use 90837 when the service provided matches the time and activity requirements specified for this CPT code. Ensure documentation supports the code selected and time thresholds are met.
- Duration
- CPT codes are billed per session based on time thresholds. Document exact session start and end times. Ensure the documented time matches the code requirements.
- Session codes
- This is a CPT code. Pair with the appropriate ICD-10 diagnostic code(s) to support medical necessity. Always list the primary diagnosis first.
- Key indicators
- Service matches code description • Time requirements met • Documentation supports medical necessity • Appropriate diagnostic code paired • Proper modifiers applied if needed
What 90837 represents
CPT 90837 represents the most commonly billed code for standard psychotherapy sessions. It covers individual psychotherapy lasting approximately 53 minutes or more (the 53-minute threshold is key for proper billing).
Key diagnostic criteria
N/A – billing code. Must meet the 53-minute minimum threshold for individual psychotherapy service.
Documentation essentials
Document start and stop times. Record therapeutic interventions used. Note progress toward treatment goals. Include diagnostic formulation.
Differential diagnosis
N/A – distinguish from 90834 (38-52 minutes) and 90832 (16-37 minutes).
Treatment planning
N/A – supports the delivery of evidence-based psychotherapy within the 53+ minute timeframe.
Insurance & billing
Most commonly billed psychotherapy code. Requires 53+ minutes of face-to-face time. Document time clearly. Can be billed with add-on codes like 90785.
Updates & changes
Monitor for changes in time requirements and reimbursement rates.
Documentation pitfalls
Must document at least 53 minutes. Don't bill 90837 for sessions under 53 minutes (use 90834 instead). Document time accurately.
References
- American Medical Association. (2024). CPT Professional Edition.

