Telehealth Billing 2026: CPT Codes, Place of Service & Payer Rules

By Yagnesh Dave  ·  June 2026  ·  11 min read

Telehealth billing is one of the most rule-dense areas in revenue cycle management. The codes, modifiers, and place-of-service requirements differ by visit type, patient location, provider type, and payer. What Medicare allows may be restricted by a commercial plan. What worked under the COVID public health emergency may require new documentation under 2026 rules. This guide cuts through the confusion and gives your billing team a clear framework for every type of virtual visit.

The Telehealth Billing Framework: 4 Visit Types

Before assigning a CPT code, determine which of the four telehealth delivery models applies:

• Synchronous audio-video: real-time two-way video; the standard for most telehealth E&M visits
• Audio-only: telephone without video; restricted to specific scenarios under Medicare and many commercial plans
• Asynchronous (store-and-forward): patient submits photos, data, or messages; provider reviews and responds later
• Remote patient monitoring (RPM): continuous or periodic physiologic data collected via devices and reviewed by the clinical team

Each model has its own CPT codes, documentation requirements, and payer-specific authorization rules.

Place of Service Codes: Getting POS Right

The single most common telehealth denial cause is an incorrect place-of-service (POS) code. Medicare and most commercial payers require specific POS codes to identify where the patient was located during the visit, not where the provider was.

Synchronous Audio-Video E&M Codes

Standard office visit codes (99202–99215) apply to audio-video telehealth when the visit meets the same documentation thresholds as an in-person E&M. The 2021 E&M guidelines (medical decision-making or total time) apply equally to telehealth.

Required Modifiers for Telehealth E&M

• Modifier 95: synchronous telemedicine service rendered via real-time interactive audio-video communication; required by most commercial payers
• Modifier GT: via interactive audio and video telecommunications systems; still required by some Medicare Advantage and commercial plans, verify payer by payer
• Modifier GQ: via asynchronous telecommunications systems; used for store-and-forward services in approved states
• Modifier 93: synchronous telemedicine service rendered via telephone or other real-time interactive audio-only communications; used for audio-only visits under specific Medicare rules

Audio-Only Telehealth Billing

Audio-only (telephone-only) visits without video remain permanently covered by Medicare for established patients under certain conditions. They're not covered as standard E&M codes, use the telephone E&M series instead.

Key restriction: audio-only codes can't be billed if the call originated as a follow-up to an E&M visit within the previous 7 days or leads to an in-person visit within 24 hours. Document that the patient was offered video and declined if using audio-only, several payers require this attestation.

Asynchronous & Check-In Codes

Not every patient interaction requires a synchronous visit. Medicare and many commercial payers cover shorter asynchronous communications when documented properly.

Medicare vs. Commercial Payer Telehealth Rules

The gap between Medicare's telehealth coverage and commercial plan policies is one of the biggest sources of billing confusion in 2026.

Medicare (Traditional)

• Covers synchronous audio-video E&M (99202–99215) permanently for mental health, substance use disorder, and several other conditions
• Requires POS 02 or 10, no GT modifier required as of 2024 forward for most services
• Audio-only (99441–99443) covered for established patients; patient must lack access to video
• Originating site (where patient is located) no longer required to be a healthcare facility for most services
• Rural geographic restriction has been waived permanently for mental health telehealth

Medicare Advantage Plans

• May require modifier GT or 95, always verify each MA plan's telehealth addendum
• Some MA plans restrict telehealth to in-network providers only, even if the service is covered
• Prior authorization requirements vary widely, some MA plans require PA for video visits above 99213

Commercial / Private Payers

• State parity laws require most commercial plans to reimburse telehealth at the same rate as in-person visits in most states as of 2026
• Most require modifier 95 on the claim; some still require GT
• Audio-only coverage varies significantly: many plans exclude 99441–99443 or limit to behavioral health
• Platform requirements: some plans restrict coverage to specific telehealth platforms (Teladoc, MDLive, etc.) for certain services

Telehealth Billing for Behavioral Health

Mental health and substance use disorder services have the most favorable telehealth coverage rules across all payer types. Key considerations:

• Medicare: Psychotherapy codes (90832–90838) are permanently covered via telehealth; no geographic or originating site restriction
• Initial mental health visits: May now be conducted via telehealth for Medicare patients (in-person requirement removed permanently)
• Substance use disorder: 99408, 99409, and SBIRT services covered via telehealth under Medicare
• Concurrent billing: Psychotherapy add-on codes (90833, 90836, 90838) can be billed with E&M codes during the same telehealth session with modifier 25 on the E&M

Remote Patient Monitoring (RPM): A Growing Revenue Stream

RPM allows practices to bill for ongoing monitoring of patients between visits. It's one of the fastest-growing telehealth billing categories and applies to chronic disease management, post-surgical monitoring, and preventive care programs.

RPM requires a written care plan, informed patient consent, and documentation that the device transmits data automatically (not patient-manually-entered data, which falls under RTM codes instead). The 16-day transmission threshold is a hard line, practices that bill 99454 without confirming the transmission count face high-volume denials.

Top Telehealth Denial Reasons & Fixes

Documentation Requirements for Telehealth Visits

The clinical note for a telehealth visit must include elements that in-person notes don't require:

• Statement confirming the visit was conducted via synchronous audio-video (or audio-only if applicable)
• Patient's location at the time of the visit (city and state at minimum)
• Provider's location at the time of the visit
• Patient's verbal consent to telehealth visit (for first telehealth encounter and annually)
• For audio-only: statement that patient was offered video and declined, or lacks technology access
• All standard E&M documentation: chief complaint, history, assessment, plan, time if billing by time

Telehealth Audit Exposure: Location, Modality, and Documentation

Telehealth reviews check that the visit type, the place of service, and the documentation all describe the same visit. A video visit billed with an office place of service, or an audio-only visit billed as a standard video E/M, is a mismatch that a payer's system flags before a person ever reads the note. The record should show the patient's location, the technology used, and who was on the call. Contractors can look back three years, and on a practice with a recurring pattern here, that lookback can put a large recoupment at stake, before the cost of the appeal.

Rules also differ by payer, and some Medicare flexibilities are temporary, so a claim that was fine last year can be wrong now. Contractors and commercial payers can review three years of claims, and because telehealth visits follow a template, a wrong default repeats on every visit that used it. Check each payer's current policy and update your templates when a policy changes. This isn't a paperwork detail, it's a revenue line: practices that let this slide leave money uncollected every year.

Frequently Asked Questions About Telehealth

What's the most common cause of telehealth denials?

An incorrect place-of-service code, according to the article. Payers require specific POS codes to identify where the patient was located during the visit, so set the default correctly and let providers change it.

What are the four telehealth visit types?

Synchronous audio-video, audio-only, asynchronous, and check-in style communications, as the article's framework lists. Decide which one applies before you assign the CPT code.

Do commercial payers follow Medicare's telehealth rules?

Not always. The article calls the gap between Medicare's coverage and commercial policies one of the biggest sources of billing confusion in 2026, so check each plan's current policy.