Telehealth Billing Codes 2026: Updated CPT and Documentation
Telehealth billing has crossed a threshold. The pandemic-era blanket waivers are gone or narrowing, and what remains is a permanent but significantly more demanding compliance framework. Most practices and health systems experiencing elevated telehealth denial rates are not using the wrong codes. They are submitting claims with documentation that fails to answer the basic questions a payer reviewer or auditor will ask: Where was the patient? What technology was used? Was two-way audio-video confirmed? Why was this visit conducted virtually instead of in person? Getting those answers into the record, consistently and completely, is where the real work of telehealth billing now lives.
The Current CPT and HCPCS Code Landscape
Synchronous Audio-Video E/M Visits
Standard office and outpatient E/M codes (99202 through 99215) remain the correct codes for synchronous telehealth visits conducted with real-time two-way audio and video. The code itself does not change. What changes is the modifier and the place-of-service code attached to the claim. Modifier 95 signals that the service was delivered via synchronous telemedicine. Without it, the claim will often deny or mispay because the place-of-service code alone is not always sufficient notice to the payer's adjudication system.
Place-of-service code 02 (Telehealth, Other than Home or Residence) applies when the patient is located somewhere other than their home, such as a clinic, federally qualified health center, or a rural health site. Place-of-service code 10 (Telehealth, Patient in Home or Residence) applies when the patient connects from home. The distinction matters both for payment calculation and for compliance. Billing POS 02 when the patient was actually at home, or vice versa, is a documentation and billing error that audit tools can flag during a coding quality audit.
Audio-Only Codes
Audio-only visits, where video is not available or the patient cannot use it, are covered under a narrower set of circumstances. CPT codes 99441 through 99443 represent telephone evaluation and management services by a physician or qualified health professional. Coverage for these codes is more limited than for audio-video services, and many commercial payers do not cover them at the same rate, or at all. Medicare's position on audio-only has shifted across policy cycles, and the current rules should be confirmed directly against the active CMS Physician Fee Schedule and any applicable Medicare telehealth flexibilities in effect for the current plan year.
Online Digital Evaluation Codes
CPT codes 99421, 99422, and 99423 cover asynchronous, patient-initiated online digital evaluation and management services. These are not real-time visits. They capture the clinician's time spent reviewing a patient message, reviewing relevant records, and preparing a response through a patient portal or similar platform. They are time-based and are reported over a cumulative seven-day period. They cannot be billed on the same day as or in the same seven-day period as an E/M visit for the same problem. Billing a synchronous audio-video visit code when the actual service was a store-and-forward or message exchange is one of the more common errors seen in telehealth claim reviews.
Documentation Elements That Protect a Telehealth Claim
Strong telemedicine documentation captures six specific elements that reviewers look for.
- Patient's physical location at time of service. The note should state where the patient was, not just that the visit occurred via telehealth. This affects both the place-of-service code selection and compliance with originating site rules where applicable.
- Technology platform used. The record should name or describe the platform. This is not about brand marketing; it is evidence that the service was delivered through a compliant, HIPAA-appropriate channel.
- Confirmation of two-way audio-video functionality, or explicit documentation of audio-only. If video was available and used, say so. If the patient could not use video and the visit proceeded audio-only, document the reason and note that consent was obtained. This one element, when missing, creates ambiguity that can flip a synchronous claim to an audio-only denial.
- Documented patient consent. Many states and payers require consent for telehealth services to be documented in the record. A blanket reference to a signed consent form on file is often insufficient for audit purposes; the note should reflect that consent was confirmed and the patient agreed to the modality.
- Medical necessity for the virtual format. This does not require a paragraph of justification for every visit, but the clinical note should make clear why the patient's care needs were appropriately addressed through telehealth. For complex patients or for services that payers scrutinize, a brief, specific rationale protects the claim.
- Provider's location. Some payers and some state rules require documenting where the rendering provider was located during the visit, not just the patient.
Time-Based vs. MDM-Based Billing for Telehealth E/M
The 2021 E/M revisions apply to telehealth E/M visits exactly as they apply to in-person visits. A clinician may select the level of service based on either total time on the date of the encounter or medical decision making complexity. Time-based billing for telehealth captures total practitioner time on that date devoted to the encounter, including pre-visit chart review, the visit itself, and post-visit work such as ordering, documentation, and care coordination. That total time must be documented in the note. Stating that the visit lasted a certain number of minutes but not capturing the full encounter time leaves money on the table and creates inconsistency between the billed level and the documented time.
MDM-based selection requires the same three-element analysis (number and complexity of problems, amount and complexity of data reviewed, and risk of complications or morbidity) that applies in any outpatient setting. Neither approach is uniquely telehealth. What is unique is that auditors reviewing telehealth claims tend to look at time documentation with particular attention, because the visit setting makes it harder to corroborate duration.
Remote Patient Monitoring and Chronic Care Management
Remote patient monitoring codes 99453, 99454, 99457, and 99458 cover a connected-device care model that is distinct from a telehealth visit. CPT 99453 covers initial setup and patient education on the device and is billed once per device type per patient. CPT 99454 covers the ongoing supply and daily recording or programmed alert transmission period. CPT 99457 and 99458 cover the clinical staff time spent on interactive communication with the patient during the monitoring period, each requiring a documented threshold of interactive minutes to bill. The exact minute thresholds are defined in the CMS Physician Fee Schedule, which is updated annually, and practices should verify current requirements directly on CMS.gov rather than relying on any static summary.
Chronic care management codes follow a similar time-documented structure. The critical compliance point for both RPM and CCM is that time spent on these services cannot also be counted toward the same-day E/M visit time when both are billed. The same minutes cannot populate two different codes. This overlap error is a consistent audit finding and a straightforward way for a claim to trigger recovery demand.
Behavioral Health Telehealth Billing
Behavioral health services delivered via telehealth use the same CPT codes as in-person psychotherapy and psychiatric evaluation services. The documentation standards must match what would be expected in person. A telehealth psychotherapy note needs to reflect the same clinical content elements: presenting concern, mental status findings, interventions used, patient response, and plan. A brief note that records only that a session occurred and lists a diagnosis is vulnerable on audit regardless of the modality.
Group therapy sessions delivered via telehealth require documentation that reflects each participant's presence and engagement. A group note that does not identify and describe each patient's participation in that session creates compliance exposure, particularly when multiple claims are generated from a single session.
Common Billing Errors to Prevent
- Omitting modifier 95 from a synchronous telehealth E/M claim.
- Billing asynchronous store-and-forward or online digital evaluation services under synchronous visit codes.
- Billing a telehealth visit and an in-person visit on the same date for the same problem without distinct, separate documentation clearly supporting both services.
- Miscalculating prolonged service add-on time by including time already counted in the base E/M threshold.
- Applying the wrong place-of-service code based on the patient's actual location.
- Overlapping RPM or CCM time with same-day E/M time.
State Licensure and Interstate Compact Participation
A telehealth claim can be coded and documented perfectly and still not be legally billable if the rendering provider is not licensed in the state where the patient was physically located during the visit. State licensure requirements did not disappear when telehealth expanded. Interstate compacts for medicine, nursing, and behavioral health have expanded the options for multi-state practice, but participation varies by state and by profession. Practices with clinicians treating patients across state lines should have a current licensure map reviewed by legal or compliance counsel, not assumed from a cached summary of which states participate in which compact. Billing for a service a clinician was not legally authorized to provide in a given state creates liability that no modifier or documentation fix can address after the fact.
Payer Policy Variability
Medicare's telehealth rules and commercial payer policies are not the same, and neither is static. A commercial plan that covered audio-only visits broadly in 2023 may have tightened those rules in subsequent years. A Medicaid program may cover a service that Medicare does not. The only reliable approach is to verify each payer's current telehealth policy directly before billing, using the payer's published coverage policies, provider manuals, or direct provider relations contact. A static reference document, including internal coding guides that are not refreshed at least annually, will eventually generate a denial or an audit finding.
Consistent, accurate physician coding for telehealth requires treating payer policy verification as an ongoing operational function, not a one-time setup task.
Getting Telehealth Billing Right in 2026
The codes are not the hard part. The hard part is building documentation workflows that capture modality, location, consent, and medical necessity on every telehealth encounter, keeping up with annually updated time thresholds and fee schedule changes, verifying payer-specific policies before claims go out, and maintaining clean separation between RPM, CCM, and E/M time. None of those tasks are optional in the current compliance environment.
To strengthen your telehealth claim accuracy and reduce denials with expert support tailored to your practice, visit MedCodex Health's physician coding services.