CY 2026 Medicare Mental Health PFS Updates: What Providers Need to Know

The CY 2026 Medicare Physician Fee Schedule establishes permanent frameworks for telehealth, mid-level practitioner reimbursement, and behavioral health integration. For mental health providers, this represents the formal codification of pandemic-era flexibilities and introduces new operational requirements for billing, prior authorization, and provider enrollment.

The “home as originating site” for mental health services is now permanent as of January 1, 2026. Medicare patients can receive behavioral health care in their homes without geographic limitations. This applies to psychiatric evaluations, psychotherapy services, family psychotherapy, and psychiatric collaborative care services.

The requirement for an in-person visit within six months of a telehealth mental health service has been delayed until January 1, 2028. This delay was established through the Consolidated Appropriations Act 2026. Providers should anticipate this requirement will become active in 2028 and begin planning accordingly.

Audio-only communication remains billable for behavioral health services under these specific conditions, effective January 1, 2026:

1. The provider must be technically capable of delivering audio-video communication.
2. The patient is unable to use video or has declined video technology.
3. The reason video is not being used must be documented in the medical record.

 For billing purposes, audio-only mental health services require Modifier FQ (Medicare audio-only behavioral health service) on all applicable claims. This modifier is permanent and distinct from Modifier 93, which is used for non-behavioral health audio-only services.

With home as a permanent originating site, accurate Place of Service (POS) coding is essential for claim processing and payment:

1. POS 10 = Telehealth provided in patient’s home (the standard for home-based mental health telehealth)
2. POS 02 = Telehealth provided at a location other than the patient’s home (includes clinician’s office, community mental health center, or other facility-based settings)

Ensure your billing system defaults to POS 10 for home-based telehealth appointments and POS 02 for facility-based services. Incorrect POS coding causes claim denials.

The following codes are billable for mental health services delivered via telehealth. All codes require appropriate telehealth modifiers (95 for synchronous audio-video; FQ for audio-only behavioral health):

Psychiatric Evaluation and Assessment:

• 90791: Psychiatric diagnostic evaluation without medical services
• 90792: Psychiatric diagnostic evaluation with medical services

Individual Psychotherapy:

• 90832: Psychotherapy, 30 minutes
• 90834: Psychotherapy, 45 minutes
• 90837: Psychotherapy, 60 minutes

Psychotherapy with Evaluation and Management:

• 90833: Psychotherapy (30 minutes) with evaluation and management services
• 90836: Psychotherapy (45 minutes) with evaluation and management services
• 90838: Psychotherapy (60 minutes) with evaluation and management services

Crisis Psychotherapy:

• 90839: Psychotherapy for crisis (first 60 minutes)
• 90840: Psychotherapy for crisis (each additional 30-minute interval)

Family and Group Psychotherapy:

• 90846: Family psychotherapy (without patient present)
• 90847: Family psychotherapy (with patient present)

For codes with add-on components, ensure both the base code and add-on code are submitted with consistent telehealth modifiers. For a detailed walkthrough of applying these codes in practice, see our guide to billing for therapy sessions.

Current modifier requirements for telehealth services in 2026:

• GT modifier: Retired January 1, 2017. Must NOT appear on any 2026 claims.
• 95 modifier: Synchronous audio-video telemedicine service. Standard for video-based telehealth.
• 93 modifier: Audio-only synchronous telemedicine service. Used for non-behavioral health services only.
• FQ modifier: Medicare audio-only behavioral health service. Required for all audio-only mental health claims.
• FR modifier: Split or shared professional services. Used when services are shared between providers.

Modifier errors remain one of the most common causes of mental health claim rejections. If your practice needs a coding accuracy review, our team audits modifier application across telehealth and in-person claims.  

Clinical Social Workers (CSWs) continue to receive reimbursement at 75 percent of the Medicare Physician Fee Schedule for identical services. The National Association of Social Workers advocated for an increase to 85 percent, but CMS did not finalize this change for CY 2026. This rate remains unchanged from previous years.

Licensed Marriage and Family Therapists (LMFTs) and Licensed Mental Health Counselors (LMHCs) became Medicare-eligible providers effective January 1, 2024. For CY 2026, these practitioners bill Medicare independently at 75 percent of the amount paid to clinical psychologists for identical services.

This rate is based on the clinical psychologist comparator rate, not the physician rate. This is a distinct benchmark from the CSW rate. Verify your specific locality rates to ensure correct reimbursement calculations.

The CMS Physician Fee Schedule Look-up Tool provides locality-specific reimbursement rates at no cost. Reimbursement varies significantly by geographic location. A 60-minute psychotherapy code (90837) may pay 52 dollars in rural areas and 73 dollars in urban areas. Use this tool to model 2026 revenue forecasts and inform commercial payer contracting decisions.

Access the tool at: Search the Physician Fee Schedule | CMS

For newly Medicare-eligible LMFTs and LMHCs navigating this complexity, our analysis of in-house versus outsourced mental health billing covers the operational tradeoffs of managing Medicare billing internally.

CMS has finalized a permanent definition of “direct supervision” that allows real-time, two-way audio-visual telecommunications between the supervising practitioner and the supervisee. The supervising practitioner no longer needs to be physically present in the same office or building as the associate, fellow, or student.

This expansion applies to group practices employing or supervising clinicians, training facilities, residency programs, and interstate supervision arrangements. Virtual supervision must involve real-time, synchronous, two-way audio-visual communication. Asynchronous video review does not satisfy the direct supervision requirement.

CMS now provides Medicare coverage for the oversight of FDA-cleared Digital Mental Health Treatment (DMHT) devices used in the treatment of Attention Deficit Hyperactivity Disorder (ADHD). This coverage pathway requires:

1. A formal diagnosis of ADHD prior to initiating Digital Mental Health Treatment.
2. The treating practitioner to furnish (provide and pay for) the device.
3. Adherence to FDA clearance terms and CMS billing conditions.
4. Documentation in the medical record that the device is integrated into the treatment plan.

Practitioners who provide oversight of these devices can bill for clinical monitoring and assessment. This represents an emerging revenue opportunity for practices that treat ADHD.

The Prior Authorization Rule (CMS-0057-F) became effective January 1, 2026. This rule establishes new timeframes for Medicare prior authorization decisions on certain mental health services. Covered services include:

• Intensive Outpatient Programs (IOP)
• Partial Hospitalization Programs (PHP)
• Specific psychiatric medications
• Certain diagnostic assessments

CMS now operates under a seven-day standard for routine prior authorization decisions and a 72-hour expedited decision window for urgent cases. This compression of timelines requires practices to submit comprehensive clinical documentation quickly. Practices cannot delay documentation submission and expect standard timeline approval. For the complete workflow including documentation checklists and payer-specific submission requirements, see our prior authorization guide for mental health billing. 

The CY 2026 Physician Fee Schedule introduced three new G-codes for Advanced Primary Care Management (APCM). These codes provide an alternative to the Psychiatric Collaborative Care Model (CoCM):

• G0556: Advanced Primary Care Management, Level 1 (lower complexity; typical monthly contact 20 to 30 minutes)
• G0557: Advanced Primary Care Management, Level 2 (moderate complexity; typical monthly contact 30 to 40 minutes)
• G0558: Advanced Primary Care Management, Level 3 (highest complexity; typical monthly contact 40 to 60 minutes or more)

These codes shift from time-based to outcome-based billing. Providers document the complexity level of care coordination rather than tracking precise minutes. This reduces administrative burden while maintaining payment for services rendered.

Current codes for behavioral health integration and psychiatric collaborative care remain valid for 2026:

• 99492 to 99494: Psychiatric Collaborative Care Model (CoCM). Initial assessment followed by ongoing care coordination. Requires real-time consultation between the primary care provider and psychiatrist.
• 99484: Care Management for Behavioral Health Conditions. General behavioral health integration care coordination. Does not require real-time psychiatrist consultation.
• G2214: Psychiatric Collaborative Care Model, Initial Service (alternative G-code format for CoCM initial assessment).
• G0556 to G0558: Advanced Primary Care Management (APCM). Newer outcome-based model for integrated care coordination.

The code selection depends on your care delivery model and documentation capacity. Practices using CoCM codes must document real-time psychiatrist consultation. Practices using 99484 do not require consultation documentation. APCM codes require complexity-level documentation. Select one model per patient and bill consistently. For practices where psychiatric consultation is a core component, our psychiatric billing services page covers the full documentation and coding framework.

The Mental Health Parity and Addiction Equity Act (MHPAEA) Final Rule was finalized in September 2024. This rule applies to commercial insurance payers and requires that mental health services cannot be treated less favorably than physical health services.

Commercial payers must ensure that non-quantitative treatment limitations (NQTLs) for mental health and substance use disorder services are no more restrictive than those for medical or surgical benefits. Examples include prior authorization standards, network adequacy requirements, geographic service area limits, and out-of-network cost-sharing differentials.

If a commercial payer denies mental health services for reasons that would not apply to medical services, the practice has grounds to appeal and require the payer to justify the discrepancy against MHPAEA standards. CMS has strengthened enforcement of these requirements, increasing the likelihood of payer audits and penalties for violations.

Practices should appeal mental health denials that appear inconsistent with how the payer treats medical service denials.

The 2024 Final Rule on 42 CFR Part 2 (Confidentiality of Alcohol and Drug Abuse Patient Records) brought the regulation closer to HIPAA standards. For practices treating substance use disorders with co-occurring mental health diagnoses, consent forms must comply with both 42 CFR Part 2 and HIPAA requirements.

Consent may be obtained in a single joint authorization that explicitly covers both statutory frameworks. However, substance use disorder records require separate accounting and tracking compared to general mental health records.

When records are released under 42 CFR Part 2 authorization, the recipient cannot re-disclose that information without obtaining new patient authorization. This restriction is stricter than HIPAA requirements and requires careful workflow management.

Three interstate licensure compacts now facilitate multi-state mental health practice:

• PSYPACT (Psychology Interjurisdictional Compact): Over 40 states participate. Psychologists licensed and in good standing in a PSYPACT state can provide telehealth across other PSYPACT states without separate licensure.
• Counseling Compact: Over 30 states participate. Licensed Professional Counselors (LPCs) can practice telehealth across compact states.
• Social Work Compact: Growing adoption. Licensed Clinical Social Workers and other social work licensure categories can practice across compact states.

For practices operating across state lines, understanding compact eligibility can reduce licensure costs and administrative burden.

The DEA waiver allowing prescribing of controlled substances via telehealth without a prior in-person visit remains in effect through December 31, 2026. This applies to psychiatrists and psychiatric nurse practitioners.

The waiver expires at the end of 2026 and is not guaranteed extension. Practices operating on a telehealth-only model should develop contingency plans for in-person prescribing capacity if the waiver expires and is not extended.

Medicare enrollment is mandatory for LMFTs and LMHCs and cannot be expedited. The process requires 30 to 60 days from application submission to PTAN issuance.

The enrollment process requires submission of Form CMS-855I (individual provider enrollment). The application must include current state license number, DEA registration if the provider prescribes medications, current malpractice insurance information, and background information.

The application enters PECOS (Provider Enrollment, Chain, and Ownership System) for processing and approval. Upon approval, CMS issues a Provider Transaction Access Number (PTAN). This number is required for Medicare claim submission.

If the provider will bill through your group practice’s Tax Identification Number rather than individually, submit Form CMS-855R for reassignment. This ensures claims are properly attributed to your practice and prevents inadvertent individual billing. Our credentialing and enrollment team manages the full PECOS application and reassignment process for mental health practices. 

Action: Start enrollment paperwork in advance of the provider’s first patient appointment. Do not wait until January to begin this process.

Medicare enrollment provides the PTAN for Medicare claims. Commercial payer credentialing is a separate process with distinct requirements and timelines. Each commercial payer requires independent credentialing verification.

Ensure providers have current state licensure verified through the state licensing board, active malpractice insurance documentation, and clean background checks. Multi-state providers require verification of interstate licensure status and compact eligibility. Commercial payer credentialing typically requires 4 to 8 weeks for completion.

Claims and Billing Review: Audit all claims submitted in Q4 2025. Verify that no GT modifiers appear on claims. Confirm POS codes are correct (POS 10 for home based, POS 02 for facility based). Verify that audio-only mental health services include Modifier FQ and documented justification in the medical record.

Provider Enrollment: If hiring new LMFTs, LMHCs, or expanding CSW staff, initiate PECOS enrollment immediately. Allow 30 to 60 days for processing. Complete commercial payer credentialing simultaneously, as these processes occur independently.

Behavioral Health Integration Coding: Determine whether your practice will continue with current Psychiatric Collaborative Care Model or general Behavioral Health Integration codes, or transition to Advanced Primary Care Management codes. Update clinical documentation templates accordingly. Train clinical and billing staff on documentation requirements for the selected model.

Prior Authorization Processes: Review your prior authorization submission procedures. Verify that clinical documentation can be submitted to payers within 72 hours for expedited reviews and 7 days for routine reviews. Implement process improvements if necessary.

Compliance Review: If treating substance use disorders, verify that patient consent forms comply with both 42 CFR Part 2 and HIPAA requirements. For multi-state providers, verify state licensure status and confirm compact eligibility.

Revenue Modeling: Use the CMS Physician Fee Schedule Look-up Tool to calculate 2026 reimbursement for your high-volume codes (90791, 90837) by geographic locality. Use this analysis to inform commercial payer contracting strategies.

The CY 2026 Medicare regulatory changes represent permanence rather than revolution. Pandemic-era telehealth flexibilities are now formally codified in Medicare policy. This permanence benefits patient access and practice operations for providers who have built telehealth models.

However, permanence requires tighter operational execution. Correct modifiers, accurate POS codes, proper provider enrollment, and comprehensive documentation are no longer waived or flexible. Practices that properly implement these requirements will optimize revenue in 2026.

The regulatory landscape has transitioned from temporary extensions to permanent rules. Practices should complete all action items before January 1, 2026, to ensure full compliance and revenue optimization.