The most-billed mental health CPT codes in 2026 are 90837 (60-minute individual psychotherapy), 90834 (45-minute psychotherapy), 90791 (psychiatric diagnostic evaluation), 90847 (family therapy with the client present), and 90853 (group psychotherapy) [1]. This guide covers every CPT code therapists need for behavioral health billing in 2026, including the 98000-98016 audio-only and audio-video telehealth E/M codes that replaced the deleted 99441-99443 series, telehealth modifier rules, time-range thresholds, current Medicare reimbursement rates by code and by license, common audit triggers, and how Mentalyc’s AI Note Taker automatically recommends the right CPT code for each note from the session content and duration, so the code matches the documentation and we get paid in full.

If you are looking for the right therapy billing codes, psychotherapy billing codes, counseling CPT codes, or individual therapy CPT codes for 2026, they are the same code family covered below. CPT (Current Procedural Terminology) does not split by job title; it splits by service type and time. Whether you are a solo practitioner, a group practice owner, or a supervisor signing off on associate-level claims, the codes below are the ones you will see week in, week out.

Quick-Reference: Top Mental Health CPT Codes at a Glance (2026)

The top mental health CPT codes for 2026 are 90791 (intake evaluation), 90832/90834/90837 (individual psychotherapy at 30/45/60 minutes), 90847/90846 (family with and without the client), 90853 (group), and 90839/90840 (crisis). Time ranges in the table below are CPT minimums for face-to-face time per the APA Services CPT Time Rule [1].

Download the free Mentalyc CPT Code Cheat Sheet (PDF)

The code we pick depends on what we actually did and how long the session ran, not on the therapeutic modality (CBT, DBT, EMDR, psychodynamic, narrative). 90834 covers a CBT session and an EMDR session equally; it is a time-based code.

What Changed in 2026 for Behavioral Health CPT Codes

For 2026, the big structural change carried over from 2025: the 98000-98016 telehealth E/M code family, which replaced the deleted telephone E/M codes (99441-99443), is now the standard for prescriber video and audio-only visits [9]. Beyond that, the 2025 permanent telehealth coverage for psychotherapy codes (90791, 90834, 90837 with modifier 95 or 93) carried into 2026 unchanged, and the 2026 Medicare Physician Fee Schedule raised most psychotherapy reimbursement modestly (90837 from $154.29 to $167.00) [2]. One persistent myth worth dispelling: there is still no new prolonged-services code for psychotherapy. 99417 remains E/M-only and cannot be paired with 90837 or 90847 [3].

The 98000-98016 Telehealth Code Family

The 98000-98016 family is a dedicated telehealth E/M code set that replaced the deleted telephone E/M codes (99441-99443) and gave prescribers cleaner codes for video and audio-only visits. The American Medical Association introduced these codes effective January 1, 2025, and they remain in force for 2026 [9]. These are E/M codes for prescribers, not psychotherapy codes; therapists billing psychotherapy still use 90837 / 90834 / 90791 with modifier 95 (video) or modifier 93 (audio-only).

Critical Medicare nuance: as of 2026, Medicare does NOT recognize 98008-98015 (audio-only E/M) for reimbursement. Commercial payer coverage varies. For Medicare audio-only visits, prescribers continue to bill the standard outpatient E/M codes (99202-99215) with modifier 93. Verify each payer’s stance before billing the new audio-only codes.

For therapists (non-prescribers): the 98000-98016 series does not change how we bill psychotherapy. We still use 90837, 90834, 90791, and the rest of the psychotherapy family, with modifier 95 for video or modifier 93 for audio-only where the payer accepts it.

Telehealth Modifier Rules (Psychotherapy)

Telehealth for psychotherapy is now permanent infrastructure, not a pandemic workaround. For 2026:

• Permanent telehealth status: 90791, 90834, and 90837 are permanently reimbursable for telehealth on Medicare and most commercial payers [5].
• Modifier 95 (video): the workhorse for synchronous video psychotherapy.
• Modifier 93 (audio-only psychotherapy): allowed when video is inaccessible, but payer coverage varies significantly. Verify before relying on it.
• Medicare geographic flexibility: Medicare maintains expanded geographic flexibility for telehealth behavioral health; the originating-site restrictions that pre-dated the pandemic do not apply [5].

CMS publishes the canonical telehealth-eligible code list [6]; we check it before billing edge cases.

Prolonged Psychotherapy: What Changed and What Didn’t

There is still no separate prolonged-services code for psychotherapy in 2026. The older CPT 99354 and 99355 (psychotherapy prolonged services) were deleted in 2023. The newer 99417 applies to outpatient E/M services only and cannot be billed with 90837, 90847, or other psychotherapy codes [3]. For psychotherapy sessions longer than 60 minutes, 90837 still applies (no upper time cap); we just document the actual session length. Prescribers running long medication-management visits that include significant psychotherapy can use 99417 against the underlying E/M code, but not against the psychotherapy add-on.

Measurement-Based Care (MBC) Integration

Measurement-Based Care is the systematic use of standardized instruments to assess client symptoms, monitor progress, and adjust treatment plans on evidence rather than impression. It continued to expand into 2026 as insurers move toward outcomes-based reimbursement. Two scoring codes have become routine in our practice:

• 96127: For scoring brief emotional/behavioral assessments like the PHQ-9 for depression, the GAD-7 for anxiety, PCL-5, and similar instruments. Useful for routine clinical assessment and measurement-based care scoring.
• 96160: For client-completed health risk assessments.

96127 reimburses around $5 per instrument under 2026 Medicare and adds up across a panel, but commercial payer coverage is inconsistent. Many private insurers do not reimburse 96127 at all, so verify with each plan before relying on it for revenue.

Collaborative Care Model (CoCM) Codes

The Collaborative Care Model is a team-based approach where behavioral health is delivered inside primary care. For therapists embedded in CoCM workflows:

• 99492: Initial psychiatric collaborative care management (70 minutes in the first month).
• 99493: Subsequent management services (60 minutes per month).
• 99494: Additional 30 minutes of care management beyond the primary time blocks.

If our practice coordinates with primary care, these codes turn coordination work into billable time.

Why CPT Codes Matter for Behavioral Health

Accurate CPT coding gives therapy practices three things: reimbursement that reflects the work, audit defense, and operational speed. CPT codes are the standardized vocabulary insurers use to understand what we did in session, and getting them right is the difference between getting paid and getting denied.

• Reimbursement that reflects the work: The right code communicates the service and its value. The wrong code underpays us or triggers a denial.
• Audit defense: Misuse (even unintentional) can prompt audits, recoupments, or removal from panels. The American Medical Association’s Behavioral Health Coding Guide [7] is the canonical reference and worth a yearly skim.
• Operational speed: Correct codes mean fewer resubmissions, faster A/R, and less time on appeals.

Categories of Mental Health CPT Codes

Mental health CPT codes split into roughly seven service categories: diagnostic evaluations, individual psychotherapy, family/group, crisis, testing, health-behavior assessment, and E/M with psychotherapy. Here is what each covers.

Psychiatric diagnostic evaluation (90791, 90792): Initial assessments, with or without medical services. 90791 is the workhorse intake code for non-prescribers; 90792 is for prescribers doing the intake with a medication assessment [1].

Individual psychotherapy (90832, 90834, 90837, 90839, 90840): The most-used family of codes, covering 30-, 45-, and 60-minute sessions, plus the two-code crisis pattern (90839 plus add-on 90840). These cover individual therapy CPT use whether the modality is CBT, DBT, EMDR, psychodynamic, or another evidence-based approach.

Interactive complexity (90785): An add-on, never a primary, indicating a session involved specific communication factors. Compatibility details are in the Add-On section below.

Group psychotherapy (90853): Process or psychoeducation groups (excluding multiple-family groups, which use 90849).

Psychological and neuropsychological testing (96130 to 96139): Evaluation and test administration, scored separately by physician vs. technician, with primary codes for the first hour and add-ons for each additional hour. Covered in detail below.

Health and behavior assessment/intervention (96156, 96158, 96159, 96164, 96165): For services addressing the psychological, behavioral, emotional, cognitive, and social factors affecting physical health conditions.

Psychotherapy with E/M services (90833, 90836, 90838): Used by prescribers combining psychotherapy with medication management. 90833, 90836, and 90838 are add-on codes attached to the corresponding E/M code (e.g., 99213).

Family psychotherapy (90846, 90847): With and without the client present, respectively. Both require at least 26 minutes per the CPT Time Rule [1].

Crisis psychotherapy (90839, 90840): Immediate intervention for acute crisis.

Specialty codes (90845, 90875, 90880): 90845 covers psychoanalysis (typically psychoanalyst-only); 90875 covers individual psychophysiological therapy with biofeedback; 90880 covers hypnotherapy. These are credential-specific and reimbursement varies by plan.

State-specific case management (T1016, T2022): State Medicaid plans use HCPCS-level T-codes for case management, targeted case management, and care coordination. Check your state’s Medicaid manual; these are not standardized across states.

The specific code we pick depends on the service, the setting, and the client’s clinical needs.

Most-Billed Mental Health CPT Codes

The five mental health CPT codes therapists bill most often are 90837 (60-min psychotherapy), 90834 (45-min psychotherapy), 90791 (intake evaluation), 90847 (family with client), and 90853 (group). Below we document each one’s clinical use, time requirement, documentation expectations, and the insurance gotchas worth watching.

90837 (Psychotherapy, 60 minutes)

90837 is the CPT code for individual psychotherapy sessions of 53 minutes or longer, with no upper time cap [1]. It is one of the highest-volume mental health codes and also the one insurers scrutinize hardest, so documentation has to clearly justify the longer length.

When we use it. Sessions clinically requiring a full hour: complex trauma work, integration sessions, work with clients whose attention or affect regulation needs more time to settle. We document the specific interventions and the clinical rationale for the length so 90837 holds up against the inevitable “why not 90834?” question.

Pre-authorization. Some insurers, especially Medicaid plans and certain commercial panels, require pre-authorization for repeated 90837 use with the same client. We confirm before scheduling a 60-minute session.

A note from clinical practice. In our experience, 90837 audit letters tend to land for therapists whose 90837 ratio exceeds about 50% of their psychotherapy claims, sustained over several months. The fix is not to downcode (which itself raises a flag for inconsistent documentation); it is to make sure each 90837 note explicitly states why the longer session was clinically required, in clinical language, not boilerplate.

For group practice owners. Audit-pattern surveillance is worth running quarterly across the whole panel. Spot which clinicians sit above 50% 90837 (or whose 90837 ratio has crept up over time) and review their documentation patterns before the payer does. Most billing platforms can pull this report in minutes.

Telehealth. 90837 is permanently reimbursable via telehealth with modifier 95 (video) or modifier 93 (audio-only, where the payer accepts it) [5]. The same documentation standards as in-person sessions apply.

Sessions over 60 minutes. 90837 has no upper time cap. If a session ran 75 or 90 minutes, 90837 still applies. There is no separate prolonged-services code for non-E/M psychotherapy. 99417 cannot be added [3].

Ethics. Code choice has to follow the client’s needs, not billing incentives. We also factor in cultural, individual, and situational factors that affect whether a 60-minute session is therapeutic or exhausting for a given client.

90834 (Psychotherapy, 45 minutes)

90834 is the standard 45-minute individual psychotherapy code, covering 38 to 52 minutes face-to-face, and the one most payers prefer for ongoing weekly sessions [1]. It strikes the balance between depth and reimbursement reliability.

When we use it. For most weekly therapy: CBT, DBT, solution-focused, psychodynamic, EMDR processing sessions, anything fitting comfortably in a 45-minute frame. When choosing between 90834 and 90837, we weigh clinical complexity, the client’s pacing, and what their plan reliably reimburses.

Documentation. Notes should reflect the interventions used, session content, and how the session moved the treatment plan forward. Mentalyc’s AI Note Taker drafts the note from the session and recommends the matching CPT code automatically based on what happened and how long the session ran, which keeps the documentation and the claim consistent without manual code lookup.

Telehealth. Same telehealth coverage as 90837; modifier 95 or 93 as applicable.

90791 (Psychiatric diagnostic evaluation without medical services)

90791 is the CPT code for an initial psychiatric diagnostic evaluation without medical services, used by non-prescribers (therapists, social workers, psychologists) for the intake session [1]. It runs 60 to 90 minutes typically (no strict CPT minimum) and is billable once per treatment episode per provider.

What it covers. Clinical interview, history of present illness, mental status exam, psychosocial factors, family dynamics, prior treatment, and any third-party information (with appropriate releases). It does not include medication management or physical exam. That is 90792.

Documentation. Detail what we assessed, the diagnoses we landed on, the rationale, and the proposed treatment direction. The intake note often becomes the audit-defense document for everything that follows, so we write it thoroughly.

A note from clinical practice. Intake length varies more than the textbook suggests. Straightforward adult intakes (mild anxiety, no trauma history, no comorbidity) can run 50 minutes and be complete; trauma intakes or complex presentations regularly run past 90. The CPT code is the same. What matters for billing is documentation breadth, not session length.

Pre-authorization. Most plans cover one 90791 per provider per episode. If a client returns after a gap of more than a year or with a substantially new clinical picture, a new 90791 is usually defensible, but verify.

For supervisors and supervisees. If an associate-level clinician under supervision conducts the intake, billing rules depend on the payer and state. Medicare generally requires the supervising provider to be physically present (incident-to rules) for the work to bill under the supervisor’s NPI; commercial payers vary. Document the supervisor’s role explicitly when billing under their credentials.

90847 (Family psychotherapy, with client present)

90847 is family or couples psychotherapy with the identified client present, requiring at least 26 minutes per the CPT Time Rule [1]. The therapeutic focus is on the family system as it affects the client’s mental health, not on the family members as separate clients.

When we use it. Couples work, parent-child conflict, family-of-origin sessions where the client is in the room. The code applies regardless of how many family members attend, as long as the work is on family dynamics and the client is part of the session.

Documentation. Family members present, issues addressed, interventions used, how the session ties back to the client’s treatment goals. Confidentiality logistics (who is told what) should be documented at the outset of family work and revisited as the system changes.

Distinction from 90846. 90847 means the client is present. 90846 means the client is absent. Pick the code based on who is in the room and what the clinical strategy is.

90853 (Group psychotherapy)

90853 is the CPT code for group psychotherapy other than a multiple-family group [1]. Sessions typically run 45 to 60 minutes with 5 to 15 participants, focused on therapy (not psychoeducation alone). Content can be broad (general process groups) or specific (grief, substance use, DBT skills, anxiety, social skills).

Documentation. Date, duration, participants, content summary, interventions. The “participants” piece is where group workflows fall apart in busy practices: each client needs their own note, tied to their own treatment goals, even though the session was the same. EHRs that template a group session into per-client notes save hours per week here.

Pre-authorization. Some plans cap the number of group sessions per year. Verify before starting a long-running group.

90846 (Family psychotherapy, without the patient present)

90846 is family psychotherapy where the identified client is not present, requiring at least 26 minutes per the CPT Time Rule [1]. We use it when family members can speak more freely without the client in the room, or when we are coaching family on how to support the client between sessions.

When we use it. Parent coaching sessions when working with a teenager, sessions with a partner of someone with active addiction, family psychoeducation when the client is medically or logistically unavailable. The clinical rationale for the client’s absence needs to be documented.

Coordination. The client’s perspectives and goals should still drive the session. We typically debrief with the client beforehand and afterward to keep the work aligned with the treatment plan.

90875 (Individual psychophysiological therapy with biofeedback)

90875 is a specialized code for 20- to 30-minute sessions combining psychotherapy with biofeedback equipment. We use it for conditions where mind-body integration is central: anxiety, tension headaches, hypertension, certain stress-related disorders.

Requirements. Specialized biofeedback equipment and provider training. Document the type of biofeedback used (EMG, thermal, HRV), session duration, target symptoms, and progress. Coverage varies widely; expect to demonstrate medical necessity for reimbursement.

90832 (Psychotherapy, 30 minutes)

90832 is the CPT code for 30-minute individual psychotherapy, covering 16 to 37 minutes face-to-face. It is the shortest billable psychotherapy code [1] and useful for focused, brief interventions; clients with attention or stamina limitations; medication check-ins with a therapy component; and stepped-care tapering.

When we use it. Brief therapy models, solution-focused work, check-ins with stable clients, post-medication-adjustment touchpoints. Documentation should justify the brevity. Short does not mean light on rationale.

Pairing. 90832 often combines with other services across the week (longer psychotherapy with another provider, medication management, group). Coordinate care so the overall plan is coherent.

90838 (Psychotherapy, 60 minutes, with E/M service)

90838 is an add-on code for 60-minute psychotherapy delivered alongside an evaluation and management (E/M) service. It is billable only by providers licensed to deliver both (psychiatrists, NPs, PAs with mental health scope). The primary code is the E/M (e.g., 99213); 90838 attaches to it.

When it applies. Psychiatry visits where significant psychotherapy occurs alongside medication management. The psychotherapy work has to be documented separately from the E/M work, with clearly distinguishable time and content.

Scope. Therapists without prescribing authority cannot bill 90838 or its siblings (+90833, +90836). Stay within scope of practice.

99404 (Preventive medicine, individual counseling)

99404 is the CPT code for 45-minute preventive counseling focused on risk-factor reduction and behavior change. We use it for substance use prevention, weight management, smoking cessation, and similar lifestyle work. It sits outside the standard psychotherapy code family but matters when our work is genuinely preventive rather than treatment-oriented.

Coverage. Often reimbursed without cost-sharing under the ACA, but verify. Document the risk factor addressed, counseling provided, and follow-up plan.

90845 (Psychoanalysis)

90845 is the CPT code for psychoanalysis, used by trained psychoanalysts for analytic-frame sessions. It is not the catch-all code for “any psychodynamic session”; standard psychodynamic therapy uses 90832/90834/90837 based on time. Reimbursement varies and many commercial plans cover 90845 only for credentialed analysts.

90880 (Hypnotherapy)

90880 covers hypnotherapy sessions, with most payers limiting to about 10 units per application (per episode of care). Document the hypnotic induction, target symptoms, and clinical rationale. Coverage is plan-specific; some commercial payers exclude hypnotherapy entirely.

Mental Health Add-On CPT Codes

The main mental health add-on CPT codes are +90785 (interactive complexity), +90840 (crisis additional time), +90833/+90836/+90838 (E/M psychotherapy add-ons), and +96112/+96113 (developmental testing). Add-on codes attach to a primary service code when the session involved something beyond standard scope. They cannot be billed independently.

+90785 (Interactive complexity). Used when a session involved play equipment with young children, an interpreter, family members with discordant views complicating treatment, or required reporting of abuse/neglect. Per APA Services, 90785 may be reported only with 90791, 90832, 90834, 90837, and 90853. Not with 90792, family/couples codes, crisis codes, or solely for translation purposes [1].

+90840 (Crisis psychotherapy add-on). Each additional 30 minutes beyond the 60-minute primary 90839. Document the acute nature of the crisis, the level of distress, and why extended intervention was clinically necessary.

+90833, +90836, +90838 (E/M psychotherapy add-ons). Prescriber-only. +90833 (30-min), +90836 (45-min), +90838 (60-min) attach to the underlying E/M code when psychotherapy occurred in the same session as medication management.

+96112, +96113 (Developmental testing). Often used in pediatric mental health when administering standardized developmental instruments. 96112 covers the first hour; +96113 covers each additional 30 minutes. Document the instrument used and findings.

96156 (Health behavior assessment). For assessing psychological, social, and behavioral factors affecting a physical health condition. Document findings and treatment-planning implications.

For every add-on, payer coverage varies. Verify before billing.

Testing and Evaluation CPT Codes

Psychological and neuropsychological testing codes follow a consistent structure: separate codes for evaluation (clinical decision-making) and administration (running the tests), each with a primary code for the first hour and an add-on for each additional hour [8].

The distinction that confuses most therapists: 96130 is evaluation work (the clinical analysis we do with the data), while 96136 and 96138 are administration work (running the tests and scoring them). On a full neuropsych battery they are billed together. CMS’s Psychiatry and Psychology Services LCD (A57480) [8] is the canonical Medicare reference for documentation requirements.

E/M Codes for Prescribing Providers

For prescribers (psychiatrists, NPs, PAs) running medication-management visits, the standard outpatient E/M codes are 99202-99205 for new clients and 99211-99215 for established clients. These are the primary codes against which psychotherapy add-ons (+90833, +90836, +90838) attach when a visit includes both medication management and significant psychotherapy [1]. In 2026, prescribers also have the 98000-98016 telehealth E/M family for video and audio-only visits (see the 2026 telehealth section above).

Therapists without prescribing authority cannot bill these codes. Coding level is driven either by total time or by medical decision-making complexity; document whichever rationale you used.

Medicare Reimbursement Rates by CPT Code (2026)

Medicare physician fee schedule rates set the floor for what most commercial insurers will pay. Private payers typically reimburse 80% to 120% of Medicare, sometimes more. The table below covers 2026 rates finalized by CMS in the November 2025 final rule, per APA Services analysis [2], with 2025 rates shown for trend context. These are national-average rates; locality-adjusted figures from the CMS PFS Look-Up Tool [4] will differ based on geographic adjustment.

Source: CMS Medicare Physician Fee Schedule, national average [2][4]. Private payer rates typically vary ±20% from Medicare.

Typical Commercial Reimbursement by License Type

Commercial reimbursement varies meaningfully by therapist credential. Doctoral-level providers (psychologists) typically reimburse highest; master’s-level clinicians (LCSWs, LMFTs, LPCs) cluster in the middle; bachelor’s-level and associate-level providers reimburse lowest. The ranges below reflect typical per-session commercial rates for a 45- to 60-minute psychotherapy session on an in-network panel in 2026.

These ranges are commercial in-network estimates and vary significantly by region, payer, and contract negotiation. Medicare rates (above) are uniform nationally but locality-adjusted via the CMS PFS Look-Up Tool [4].

For group practice owners. This table is the starting point for credentialing decisions and panel mix. If your panel skews master’s-level, your average per-session revenue will sit in the $65 to $130 band; layering in psychologist-credentialed providers who can run testing (96130/96132) is the cleanest way to lift practice-wide revenue per FTE without expanding the schedule.

CPT Code Modifiers

Modifiers are two-digit suffixes that tell the payer about special circumstances: setting, complexity, or the relationship between services billed together. The ones that come up most in mental-health work:

Modifier 95 (Video telehealth). For psychotherapy sessions delivered via real-time video. Document the platform and confirm the service met the payer’s telehealth definition [5].

Modifier 93 (Audio-only telehealth). For phone psychotherapy when video is not accessible. Coverage varies significantly by payer; verify acceptance before billing.

Modifier 22 (Increased procedural services). When the work was substantially greater than typical, such as severe crisis intervention or complex comorbidity. Requires detailed documentation justifying the extra effort.

Modifier 25 (Separately identifiable E/M service). When a medication management visit and a psychotherapy session occur on the same day, modifier 25 on the E/M tells the payer they are distinct services. Documentation must clearly separate them.

Modifier 59 (Distinct procedural service). For services not normally billed together that are independent in this case (e.g., diagnostic evaluation and a therapeutic intervention in the same visit). Support the distinction in the note.

Modifier 33 (Preventive service). For screenings and preventive services exempt from cost-sharing under the ACA (e.g., depression screening at a wellness visit).

Modifier misuse triggers denials and audits. We verify with the payer which modifiers they recognize and under what conditions. Payer policies vary significantly.

Accurate Coding as Audit Protection

Accurate coding is the audit defense. Audits are a routine part of working with insurance payers, and insurers and regulators sample claims to check they meet documentation standards.

• What triggers audits: repeated use of a single high-reimbursement code (especially 90837), insufficient documentation, time mismatches between schedule and note, and pattern outliers vs. peer practices.
• What survives audits: session notes that match the billed code on time, interventions, and clinical rationale, every time.

A Note on Downcoding and Upcoding

Two coding errors create real risk. Downcoding (billing a lower-level code than the service actually delivered) leaves money on the table and signals to auditors that documentation may not support higher codes consistently. Upcoding (billing a higher-level code than the work supports) is the more dangerous side: it can flag the practice for audit, recoupment, fines, and removal from insurance panels, even if the upcoding was an unintentional error by a biller. The therapist (not the biller) bears the responsibility, so we review the billed code on each claim against the session note before submission. AI-assisted documentation reduces both errors by tying the structured note directly to the appropriate code; with Mentalyc, the draft note is generated from the actual session, it shows a full audit trail of what the AI produced versus what you edited, and you remain the clinician of record who reviews and signs the final note.

How to Avoid Common CPT Coding Pitfalls

The mistakes that trip up most therapists are mechanical, not conceptual: time thresholds, modifier misuse, payer-specific quirks, and thin documentation. Here is where to focus.

Meet the Time Minimums

Each psychotherapy code has a minimum face-to-face time per the CPT Time Rule [1]. Bill below it and the claim gets denied (or downcoded):

• 90832: 16 minutes minimum (range: 16 to 37 min)
• 90834: 38 minutes minimum (range: 38 to 52 min)
• 90837: 53 minutes minimum (no upper cap)
• 90846, 90847: 26 minutes minimum
• Anything below 16 minutes is not separately billable as psychotherapy.

Use Modifiers Appropriately

The three modifiers most therapists need to know:

• 95: Video telehealth.
• 93: Audio-only telehealth. Confirm payer acceptance first.
• 25: Separately identifiable E/M on the same day as psychotherapy.

Know Each Payer’s Quirks

Insurance plans interpret the same code differently. A common example: some plans reimburse 90834 (45-min sessions) routinely but require pre-auth or even decline 90837 (60-min sessions) for repeat use. We keep a payer-by-payer cheat sheet for our caseload; Mentalyc’s worksheets and cheat sheets library has templates worth borrowing, including behavioral health coding references.

Document Thoroughly and Tie the Note to the Code

Audit-defensible notes spell out symptoms addressed, interventions used, client response, and progress toward goals, all in language that supports the billed code. AI tools like Mentalyc’s AI Note Taker generate structured notes aligned with CPT codes so the documentation matches the billing automatically.

The Role of AI in CPT Billing and Documentation

AI documentation tools cut the administrative tax on a therapist’s day and tighten the link between session content and billing codes. Specifically, they automate the work most likely to go wrong manually:

• Session note generation: Mentalyc’s AI Note Taker converts session recordings (or session summaries) into structured progress notes aligned with the appropriate CPT code.
• CPT-aware templates: Pre-selected templates per code reduce the chance of a note that does not support the billed service.
• Time-stamped sessions: Automatic tracking of session start and end times so 90837 does not get billed on a 47-minute session.

By offloading this layer, we spend our cognitive budget on clinical decisions rather than billing mechanics. The documentation tends to be more consistent and audit-defensible than what most of us produce under time pressure between sessions.

Looking Ahead: Behavioral Health CPT Trends

Behavioral health CPT trends for 2026 and beyond point in four directions: outcomes-based reimbursement, integrated care, telehealth permanence, and AI documentation. CPT-code evolution reflects where insurers want behavioral health to go.

• Outcomes-based reimbursement: Expect more codes around measurement-based care as insurers tie payment to quantifiable change.
• Integrated care models: Collaborative Care (CoCM) and consultation codes will keep expanding as primary care absorbs more behavioral-health work.
• Telehealth permanence: What started as a COVID concession is baseline now. The 98000-98016 code family that took effect in 2025 formalized audio-only and audio-video E/M visits, and that structure carries into 2026. Audio-only coverage will likely expand further as Medicare and commercial payers align.
• AI in documentation and compliance: AI tools are reshaping how practices handle the documentation-billing-audit chain, and that is likely to influence what payers expect to see in notes.

Frequently Asked Questions

Conclusion

The most-billed mental health CPT codes (90837, 90834, 90791, 90847, 90853) cover the bulk of what most therapy practices deliver in any given week, and the fundamentals have not changed in 2026. What is current: the 98000-98016 telehealth E/M code family for prescribers (introduced in 2025, in force for 2026), the 2026 Medicare rate updates (90837 up to $167.00), and the continued absence of any psychotherapy-specific prolonged-services code (99417 stays E/M-only). Mastering this code set is not the most stimulating part of running a practice, but it is the part that determines whether the practice stays financially viable. By meeting time minimums and modifier rules precisely, watching for downcoding and upcoding risks, surveilling 90837 audit-pattern ratios across your panel if you run a group, and using AI documentation like Mentalyc’s AI Note Taker to tie notes to codes automatically, we can spend less time fighting denials and more time with our clients.

References

1. American Psychological Association Services. Psychotherapy codes for psychologists. Last updated August 2023. https://www.apaservices.org/practice/reimbursement/health-codes/psychotherapy

2. American Psychological Association Services. What’s changing in Medicare for 2026 and why it matters. https://www.apaservices.org/practice/reimbursement/government/medicare-final-rule-analysis

3. American Medical Association. 2023 CPT E/M Descriptors and Guidelines (PDF). Section on prolonged services code 99417 and outpatient E/M reporting. https://www.ama-assn.org/system/files/2023-e-m-descriptors-guidelines.pdf

4. Centers for Medicare & Medicaid Services. Physician Fee Schedule Look-Up Tool. https://www.cms.gov/medicare/physician-fee-schedule/search

5. Centers for Medicare & Medicaid Services. Telehealth Services List. https://www.cms.gov/medicare/coverage/telehealth/list-services

6. U.S. Department of Health and Human Services. Billing for telebehavioral health. https://telehealth.hhs.gov/providers/telehealth-for-behavioral-health/billing-for-telebehavioral-health

7. American Medical Association. Behavioral health coding guide. https://www.ama-assn.org/practice-management/cpt/behavioral-health-coding-guide

8. Centers for Medicare & Medicaid Services. Psychiatry and Psychology Services (LCD A57480). https://www.cms.gov/medicare-coverage-database/view/article.aspx?articleid=57480

9. American Medical Association. How the AMA meets need for new telehealth CPT codes (98000-98016). Telehealth E/M codes effective January 1, 2025. https://www.ama-assn.org/practice-management/cpt/how-ama-meets-need-new-telehealth-cpt-codes

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