Telehealth Billing for Mental Health Providers: 2026 Guide

Telehealth transformed mental health care delivery — and it's here to stay. But the billing rules around telehealth services continue to evolve, and keeping up with them is one of the biggest challenges mental health providers face today.

If you're billing telehealth services in 2026 and you're not staying current on CPT codes, modifiers, and payer-specific policies, you're almost certainly leaving money on the table — or worse, creating compliance exposure. This guide covers what you need to know right now.

Why Telehealth Billing for Mental Health Is So Complex

Mental health telehealth billing sits at the intersection of two already-complicated areas: behavioral health billing and telehealth policy. Each payer has its own rules about what's covered, how it must be documented, and how it must be billed. And those rules change — sometimes multiple times a year.

Add to that the fact that mental health parity laws require insurers to cover mental health services at the same level as medical services, and you have a billing environment that demands constant attention.

The providers who get paid consistently are the ones who treat telehealth billing as a specialized discipline — not an afterthought.

Key CPT Codes for Mental Health Telehealth in 2026

The core psychotherapy CPT codes used for telehealth are the same as in-person codes, but they must be billed with the correct modifiers and place of service codes to be processed correctly.

Individual Psychotherapy

90832 — Psychotherapy, 30 minutes
90834 — Psychotherapy, 45 minutes
90837 — Psychotherapy, 60 minutes

These are time-based codes. The session time must be documented in the clinical note, and the billed code must match the actual time spent in the session.

Psychiatric Evaluation

90791 — Psychiatric diagnostic evaluation (without medical services)
90792 — Psychiatric diagnostic evaluation with medical services

Crisis Services

90839 — Psychotherapy for crisis, first 60 minutes
90840 — Psychotherapy for crisis, each additional 30 minutes

Add-On Codes

90833 — Psychotherapy add-on to E/M, 30 minutes
90836 — Psychotherapy add-on to E/M, 45 minutes
90838 — Psychotherapy add-on to E/M, 60 minutes

These add-on codes are used when a prescriber (psychiatrist, NP, PA) provides both medication management and psychotherapy in the same session.

Modifiers: Getting Them Right Every Time

Modifiers are where many telehealth claims go wrong. The wrong modifier — or a missing one — can result in an automatic denial, even if everything else on the claim is correct.

The Two Primary Telehealth Modifiers

Modifier 95 is used for synchronous telehealth services rendered via real-time interactive audio and video telecommunications. This is the most widely accepted modifier for commercial payers and Medicare Advantage plans.

Modifier GT is used for Medicare fee-for-service telehealth claims. It indicates that the service was delivered via interactive audio and video telecommunications systems.

Which Modifier to Use

Medicare fee-for-service: Use GT
Most commercial payers: Use 95
Medicaid: Varies by state — always verify with the specific state Medicaid program

One of the most common mistakes we see is using GT on commercial claims or 95 on Medicare fee-for-service claims. Always confirm which modifier each payer requires before billing.

Place of Service Codes

Place of service (POS) codes tell the payer where the service was delivered. For telehealth, there are two primary codes:

POS 02 — Telehealth provided other than in patient's home. Use this when the patient is at a location other than their home (e.g., a clinic, school, or other facility).
POS 10 — Telehealth provided in patient's home. Use this when the patient is receiving services from their home.

The distinction matters because some payers reimburse POS 10 and POS 02 at different rates, and some have coverage limitations that apply to one but not the other.

Audio-Only Telehealth: A Special Case

Audio-only telehealth (telephone sessions without video) has different coverage rules than audio-video telehealth. During the COVID-19 public health emergency, many payers temporarily expanded coverage for audio-only services. As of 2026, coverage for audio-only mental health services varies significantly by payer.

What to Know About Audio-Only Billing

Medicare covers audio-only mental health services under certain conditions, using specific CPT codes (99441–99443 for telephone E/M services)
Many commercial payers have reduced or eliminated audio-only coverage post-PHE
Some state Medicaid programs continue to cover audio-only services for mental health
Documentation must clearly indicate that the service was audio-only and why video was not used (if required by the payer)

Best practice: Verify audio-only coverage with each payer before providing the service. Don't assume that because a payer covered it last year, they still cover it today.

Payer-Specific Considerations

One of the most important things to understand about telehealth billing is that there is no universal standard. Each payer has its own policies, and those policies can differ significantly.

Medicare

Medicare has made several telehealth expansions permanent following the pandemic, including coverage for mental health services delivered via telehealth without geographic restrictions. However, Medicare requires an in-person visit within six months of initiating telehealth mental health services and at least annually thereafter (with some exceptions).

Medicaid

Medicaid telehealth coverage is determined at the state level, which means policies vary dramatically. Some states have robust telehealth coverage for mental health; others have significant limitations. If you serve Medicaid patients, you need to know your specific state's rules.

Commercial Payers

Commercial payer policies are the most variable. Coverage, reimbursement rates, modifier requirements, and documentation standards all differ by plan. The only reliable approach is to verify benefits and telehealth coverage for each patient before their first telehealth session.

Documentation Requirements for Telehealth Claims

Strong documentation is essential for telehealth claims — both for getting paid and for protecting yourself in an audit. Your clinical notes for telehealth sessions should include:

The type of telehealth technology used (audio-video, audio-only)
Confirmation that the patient consented to telehealth services
The patient's location at the time of the session
The provider's location at the time of the session
The start and end time of the session (for time-based codes)
Clinical content that supports the diagnosis and treatment plan

Some payers also require documentation that the patient had the technical capability to participate in telehealth and that the session was conducted in a private, confidential setting.

Common Telehealth Billing Errors to Avoid

Based on our work with mental health practices across the country, here are the telehealth billing errors we see most often:

Wrong modifier for the payer — Always verify modifier requirements before billing
Wrong place of service code — POS 02 vs. POS 10 matters
Billing audio-only with video codes — These are different services with different coverage rules
Missing patient consent documentation — Many payers require documented telehealth consent
Not verifying telehealth benefits before the session — Coverage varies by plan, not just by payer
Billing telehealth for services that require in-person delivery — Some services (like certain psychological testing) cannot be delivered via telehealth

Staying Current in a Changing Landscape

Telehealth billing rules will continue to evolve. The best way to stay current is to:

Subscribe to updates from CMS (for Medicare and Medicaid changes)
Monitor payer bulletins and policy updates from your major commercial payers
Work with a billing partner who specializes in mental health and stays current on telehealth policy
Conduct periodic audits of your telehealth claims to catch errors before they become patterns

Getting the Support You Need

Telehealth billing for mental health is genuinely complex — and getting it right requires specialized knowledge that most practices don't have in-house. If you're seeing a high denial rate on your telehealth claims, or if you're not confident that you're billing correctly, it's worth getting a professional review.

At Rill Unique Enterprises, our certified billing specialists work exclusively with healthcare providers and stay current on the latest telehealth billing rules. We can audit your current telehealth billing, identify errors and missed revenue, and put a process in place to make sure you're getting paid for every service you deliver.

Book a free 30-minute consultation to find out exactly what your practice's telehealth billing looks like — and what it could look like with the right support.