Behavioral health billing operates under a distinct set of time-based psychotherapy codes, telehealth rules, credentialing requirements, and 'incident to' restrictions that are unlike any other specialty. VeriMedix delivers the coding precision and payer-relations expertise to keep your behavioral health practice paid—and compliant.
Behavioral health billing is built on time-based psychotherapy codes: 90832 (16–37 minutes), 90834 (38–52 minutes), and 90837 (53+ minutes) for individual therapy without a medical evaluation. These codes are strictly time-dependent—documentation must include start and stop times or total face-to-face time. When a medical professional (MD, DO, NP, PA) also performs a formal evaluation and management service during the same encounter, the standalone psychotherapy codes are replaced by E/M add-on psychotherapy codes: 90833 (30 min), 90836 (45 min), and 90838 (60 min), billed alongside the applicable E/M code. Time spent on E/M activities cannot be counted toward the psychotherapy time, and vice versa—they must be separately documented.
Telehealth has transformed behavioral health delivery. As of 2025, Medicare permanently covers most behavioral health services via telehealth with geographic restrictions largely eliminated. Audio-only services remain billable under Medicare when video is not available. For telehealth claims, providers use modifier -95 (synchronous audio/video) with POS 02 (non-home) or POS 10 (patient home). Commercial payers vary in their telehealth coverage rules—parity laws in most states require commercial insurers to reimburse teletherapy at the same rate as in-person services, but prior authorization requirements and credentialing for telehealth may differ by platform and payer.
Credentialing and 'incident to' billing rules are particularly consequential in behavioral health. Non-physician providers (LCSWs, LPCs, LMFTs, psychologists) bill under their own NPI and are not eligible for 'incident to' billing under Medicare—they must be enrolled and credentialed separately. Group practices that attempt to bill non-physician behavioral health services 'incident to' a physician risk significant compliance exposure. Collaborative care model (CoCM) billing codes 99492 and 99493 are available for practices that implement the structured collaborative care model with psychiatric consultation, offering another revenue stream that many behavioral health and primary care practices overlook. VeriMedix navigates these rules to ensure your practice is credentialed, billed, and paid correctly.
Below are commonly billed codes our certified coders manage for behavioral health practices. Always confirm payer-specific coverage and current code values.
| Code | Description | Billing note |
|---|---|---|
90837 | Psychotherapy, 60 minutes (53+ minutes) with patient | Highest-reimbursement individual therapy code; document start/stop or total time ≥53 minutes in the clinical note |
90834 | Psychotherapy, 45 minutes (38–52 minutes) with patient | Most commonly billed therapy code; requires documented time in the 38–52 minute range |
90832 | Psychotherapy, 30 minutes (16–37 minutes) with patient | Brief therapy sessions; minimum 16 minutes face-to-face required; do not use for sessions under 16 minutes |
90791 | Psychiatric diagnostic evaluation (without medical services) | Initial intake assessment by psychologists, LCSWs, LPCs; typically billed once per patient per episode of care |
90792 | Psychiatric diagnostic evaluation with medical services | Used by physicians, NPs, PAs who can prescribe; includes medication review; higher reimbursement than 90791 |
90833 | Psychotherapy, 30 min add-on with E/M service (16–37 min therapy component) | Billed in addition to the E/M code when psychiatrist/NP provides both a medical evaluation and psychotherapy |
90838 | Psychotherapy, 60 min add-on with E/M service (53+ min therapy component) | Highest-value add-on psychotherapy code; therapy time must be separately documented from E/M time |
90853 | Group psychotherapy (not family group) | Billed per patient per session; documentation must reflect group dynamics, patient participation, and individualized treatment |
99492 | Initial psychiatric collaborative care management, 70+ minutes in first calendar month | CoCM model: requires care manager, psychiatric consultant, and treating provider; growing Medicare-covered service |
Our standard operating procedures for behavioral health revenue cycle management — the step-by-step workflow we follow on every claim:
These are the issues we see most often in behavioral health billing — and exactly how we resolve them:
Medicare and commercial payers can deny or downcode 90832/90834/90837 claims when the note does not document the session time. Fix: Require start/stop time or total face-to-face time in every psychotherapy note; use EHR templates with time fields as mandatory.
When a prescribing provider performs both an E/M and psychotherapy, billing 90837 instead of E/M + 90838 results in underpayment and potential compliance risk. Fix: Educate prescribing providers on the distinction; implement charge capture logic that flags sessions with both medical evaluation and therapy documentation for add-on code review.
Billing LCSW, LPC, or psychologist services under a supervising physician's NPI as 'incident to' under Medicare is non-compliant; Medicare requires these providers to bill under their own NPI with their own enrollment. Fix: Enroll all non-physician behavioral health providers individually with Medicare and all commercial payers; update billing system to route claims under the rendering provider's NPI.
Telehealth claims are denied or paid at reduced rates when POS 11 (office) is used instead of POS 02 or POS 10. Fix: Automate POS assignment based on visit type at scheduling; train front desk staff to flag telehealth appointments for correct POS coding.
New behavioral health providers begin seeing patients before payer credentialing is complete, resulting in out-of-network denials that cannot be retroactively corrected for most payers. Fix: Begin credentialing applications 90–120 days before a new provider's anticipated start date; track credentialing status in a centralized log and hold claim submission until panel approval is confirmed.
Verimedix works inside the systems behavioral health practices already use, including:
CPT 90837 is used for standalone psychotherapy of 53+ minutes without a concurrent E/M service. CPT 90838 is the add-on psychotherapy code for 60 minutes of therapy when an E/M service (such as 99214) is also performed during the same encounter by a prescribing provider. Never bill 90837 and an E/M code together; use the E/M code plus the appropriate add-on (90833, 90836, or 90838) instead.
Not under Medicare for outpatient behavioral health services. Medicare requires licensed clinical social workers, licensed professional counselors, and other qualified mental health professionals to be enrolled and bill under their own NPI. 'Incident to' billing does not apply to independently licensed behavioral health providers in the outpatient setting. Confirm state Medicaid and commercial payer rules, which vary.
Medicare permanently covers most outpatient behavioral health services via telehealth, including psychotherapy codes (90832–90838) and psychiatric evaluations (90791/90792). Use modifier -95 for synchronous audio/video visits, with POS 10 if the patient is at home or POS 02 if elsewhere. Audio-only is allowed under Medicare when video is not feasible, with specific documentation requirements. Commercial payer rules vary—verify parity law applicability in the patient's state.
CoCM is a structured integrated care model where a care manager (typically a social worker or nurse) provides monthly behavioral health care management under the supervision of a treating provider (e.g., primary care physician) with psychiatric consultation. It is billed using CPT 99492 (initial month, ≥70 minutes), 99493 (subsequent months, ≥60 minutes), and 99494 (add-on for additional 30 minutes). These codes are billed by the treating provider, not the psychiatric consultant.
Generally, individual and group therapy codes should not be billed on the same date unless clinically justified and separately documented as distinct sessions. Some payers have specific policies—verify prior to billing both codes on the same date for the same patient.
CPT 90785 is an add-on code used when communication during the therapy session is unusually complicated by factors such as patient agitation or uncooperativeness, significant translator or interpreter needs, involvement of third parties with contradictory information, or disruptive communication by a young child. It can be added to 90791, 90792, 90832, 90834, and 90837, but not to crisis therapy codes (90839/90840) when used alone.
Verimedix handles the entire behavioral health revenue cycle — coding, submission, denials, and A/R — so your team can focus on patients.