90837 CPT Code: Why Overusing It Is an Audit Red Flag

CPT code 90837 is the highest-paying standard individual psychotherapy code in outpatient behavioral health - and it's also one of the clearest audit signals a payer can spot. A practice whose claims show 90% of sessions billed as 90837 looks fundamentally different to a payer than one showing a realistic 30–40% split across the time-based codes, and that difference has real consequences. This guide breaks down what 90837 actually requires, the full psychotherapy code family it sits inside, and the billing scenarios - E/M same-day, group therapy, telehealth - that most often trip up practices.

What Is CPT Code 90837?

CPT 90837 describes individual psychotherapy lasting 60 minutes, though the actual billable time window is 53 to 67 minutes of face-to-face session time - administrative work, note-writing, and scheduling don't count toward that threshold. It's commonly called "the 60-minute code," but what matters on an audit is the documented minute count, not the appointment label on the calendar. The 2026 Medicare reimbursement rate for 90837 in non-facility settings is approximately $167 per session, the highest of the three standard individual psychotherapy time codes.

Eligible billers include psychiatrists, clinical psychologists, licensed clinical social workers (LCSWs), licensed professional counselors (LPCs), marriage and family therapists (LMFTs), and psychiatric nurse practitioners, as long as the session meets the time threshold and the provider is credentialed with the payer. Per CMS's own Medicare billing and coding guidance for psychiatry and psychology services, psychotherapy time counts only the face-to-face portion of the session, not surrounding administrative work - a distinction CMS also draws in its Behavioral Health Integration Services booklet for the related, but separate, BHI care coordination codes.

The Full Psychotherapy Time-Based Code Family

90837 is one of three standard individual psychotherapy codes, each tied to a specific time window:

Each has a corresponding add-on version - 90833, 90836, and 90838 - used only when psychotherapy is billed alongside a same-day E/M service rather than as a standalone service.

Why Overusing 90837 Is an Audit Red Flag

Defaulting to 90837 across an entire caseload is both clinically inaccurate and, at scale, one of the clearest audit signals in behavioral health billing. 90837 is appropriate when clinical complexity or patient acuity genuinely demands extended time - trauma-focused therapy, a patient in active crisis, a first episode of psychosis, or complex co-occurring disorders requiring deep therapeutic work in a single session. A session that drifted long because the conversation wandered is not a 90837; a session that required 60 minutes of evidence-based intervention to address acute clinical need is. Documentation has to carry that distinction - start and stop times, the clinical rationale for the extended duration, and content that supports genuine complexity rather than a routine check-in that happened to run long. The documentation discipline this requires is the same one covered in our guide on how to prepare for a CMS CCM audit, even though the two programs are reviewed under entirely different rules.

90837 and Same-Day E/M Billing

When a psychiatrist or other prescriber provides a significant medical evaluation or medication management service on the same day as psychotherapy, the standalone 90837 code doesn't apply; bill the appropriate E/M code plus add-on code 90838, not E/M plus a standalone 90837. Billing a standalone 90837 alongside an E/M code on the same date creates a bundling conflict that typically results in denial of the psychotherapy component. Medicare emphasizes that to report both services, they must be significant and separately identifiable from each other, and documentation needs to reflect that separation clearly.

90837 With Group or Family Therapy on the Same Day

90837 and group psychotherapy (90853) are subject to an NCCI edit when billed for the same patient on the same date, and an appropriate modifier is required to override the edit when both services were genuinely and separately provided. The same caution applies to billing 90837 alongside family psychotherapy (90846 or 90847) on the same date - without clear documentation showing two distinct, separately identifiable services, one of the two claims is likely to be denied.

Telehealth and CPT 90837

Both 90837 and other individual psychotherapy codes can be delivered via telehealth when the payer permits it, using synchronous video (or audio, where the payer's policy allows it). Medicare and many commercial payers offer telehealth parity for these codes, reimbursing them similarly to in-person sessions, provided the claim carries the correct telehealth modifier and the documentation notes the platform used and the patient's consent to telehealth. Practices integrating behavioral health into a broader virtual care strategy may also find our Advanced Primary Care Management in Medical Practice guide useful, since APCM explicitly supports non-emergency check-ins delivered virtually alongside a patient's other care.

Common 90837 and Psychotherapy Billing Mistakes to Avoid

• Defaulting to 90837 for nearly every session instead of matching the code to genuine clinical complexity and documented time
• Billing a standalone 90837 alongside a same-day E/M service instead of the correct add-on code, 90838
• Billing 90837 and 90853 (group) for the same patient, same date without the modifier needed to override the NCCI edit
• Rounding session time up to reach the 53-minute threshold rather than documenting the actual face-to-face duration
• Missing the telehealth modifier or consent documentation when 90837 is delivered virtually

Practices managing complex behavioral health patients on multiple medications should also review our guide to CPT codes for medication reconciliation, since psychotherapy patients on psychiatric and physical health medications simultaneously often need that billing reviewed alongside their therapy documentation.

Where Psychotherapy CPT Codes Connect to Broader Chronic Care Management

Circle Health doesn't provide psychotherapy itself - 90837 and the rest of the psychotherapy code family stay with the treating therapist or psychiatrist. Our broader guide to CPT codes for mental health covers where Circle Health's Behavioral Health Integration program does apply directly - running the general BHI care coordination and billing for patients whose behavioral health condition is being managed within a primary care relationship, a genuinely different service than the psychotherapy codes covered here. Many patients in ongoing psychotherapy are also managing chronic physical conditions - see our overview of the costs of chronic disease emotional economic-burden for how frequently these overlap - and those physical conditions may separately qualify for Circle Health's Chronic Care Management (CCM) program, billed independently of the therapy sessions themselves.

Conclusion

CPT 90837 is a legitimate, well-reimbursed code, but it's only correct when the documented session time and clinical complexity genuinely support it - not as a default selection for every outpatient visit. Getting the time-based code family right, applying 90838 instead of a standalone code on E/M days, and carefully documenting group or family same-day billing are what keep a practice's 90837 usage clinically realistic rather than audit-prone.

CMS and the AMA review psychotherapy CPT codes and Medicare reimbursement rates on a recurring cycle, so treat this guide as a starting reference rather than a final word. Always verify current codes and rates against the latest CMS and AMA publications, and loop in your billing team or a certified coder whenever a session doesn't fit neatly into the categories above.

Frequently Asked Questions

What does CPT code 90837 mean?
CPT 90837 describes individual psychotherapy with a billable time window of 53 to 67 minutes of face-to-face session time, commonly referred to as the "60-minute" psychotherapy code.

What's the difference between 90832, 90834, and 90837?
The three codes are distinguished by time: 90832 covers 16–37 minutes, 90834 covers 38–52 minutes, and 90837 covers 53–67 minutes of individual psychotherapy.

Can 90837 be billed with an E/M service on the same day?
Not as a standalone code. When psychotherapy is provided alongside a significant, separately identifiable E/M service on the same day, the correct billing is the E/M code plus add-on code 90838, not a standalone 90837.

Why does billing 90837 too often trigger audits?
Payers compare a practice's distribution across the time-based psychotherapy codes to typical clinical patterns. A caseload where the large majority of sessions are billed as 90837 rather than a realistic mix of 90832, 90834, and 90837 is a recognized audit signal.

Can 90837 be billed via telehealth?
Yes, when permitted by the payer, using synchronous video (or audio where policy allows), with the appropriate telehealth modifier and documentation of the platform used and the patient's consent.

How can Circle Health help?
Circle Health doesn't provide psychotherapy directly, but its Behavioral Health Integration program runs the general BHI care coordination and billing for patients managed within a primary care relationship, and its broader platform supports CCM, RPM, PCM, and TCM for the same patients managing chronic physical conditions alongside their psychotherapy care.