Telehealth Billing Challenges in 2026: Modifiers, Payer Rules and Denials

A telehealth appointment may be completed successfully, documented correctly, and still result in an unpaid insurance claim. The problem often comes down to how the service was reported.

Telehealth billing challenges in 2026 continue to affect healthcare practices through modifier errors, incorrect place-of-service codes, changing coverage requirements, and inconsistent payer policies.

Even small billing discrepancies can create significant financial consequences. A missing modifier may delay reimbursement, while an incorrect patient location can affect payment calculations or trigger additional claim review.

For practices providing virtual primary care, behavioral health, specialty consultations, or follow-up visits, understanding these risks is essential to maintaining predictable revenue.

Why Are Telehealth Billing Challenges Still Affecting Reimbursement in 2026?

Telehealth reimbursement depends on several connected factors: whether the service is covered, how the encounter was delivered, where the patient was located, and whether the claim meets the payer’s requirements.

The Centers for Medicare & Medicaid Services (CMS) maintains a 2026 Medicare Telehealth Services List. Practices must confirm that the service is eligible and that its billing requirements are satisfied.

Problems frequently occur when billing teams:

• Report modifiers that do not match the encounter modality.
• Use incorrect POS codes for the patient’s location.
• Apply outdated Medicare billing instructions.
• Assume commercial insurers follow Medicare requirements.
• Submit claims without verifying service-specific coverage rules.

These errors may lead to claim rejections, denials, delayed reimbursement, or incorrect payment amounts.

For a practice conducting hundreds of virtual visits monthly, recurring errors can create substantial administrative work and increase outstanding accounts receivable (A/R).

The solution begins with understanding how telehealth services should be identified on claims.

Telehealth Modifier Mistakes That Cause Claim Problems

Modifiers communicate important information about how a healthcare service was delivered.

However, telehealth modifiers are not interchangeable. Their appropriate use depends on the communication method, payer requirements, service, and billing setting.

Modifier 95 vs. Modifier 93: Understanding the Difference

Two important telehealth modifiers are:

Modifier 95: Identifies a synchronous telemedicine service delivered through real-time interactive audio and video technology.

Modifier 93: Identifies a synchronous telemedicine service delivered through telephone or another real-time interactive audio-only system.

Confusing these modifiers can cause billing problems.

For example, reporting modifier 95 for an audio-only appointment may misrepresent how the service occurred. Similarly, submitting an audio-only claim without the required modifier can prevent the payer from identifying the encounter correctly.

Medicare also applies specific requirements to qualifying audio-only services. Not every service performed by telephone is automatically eligible for telehealth reimbursement.

A notable 2026 update affects Rural Health Clinics (RHCs) and Federally Qualified Health Centers (FQHCs).

Beginning October 1, 2026, CMS requires these organizations to report individual eligible CPT or HCPCS codes with modifier 93 or 95, as appropriate, for distant-site telehealth services instead of using the previous single G2025 billing approach.

Practical fix: Confirm the encounter modality from the clinical documentation and verify the applicable payer’s modifier instructions before submitting the claim.

Why Modifier GT Should Not Be Used Automatically

Modifier GT historically identified services delivered through interactive audio and video telecommunications.

Some payers or specialized billing arrangements may still reference GT. However, practices should not assume it can replace modifier 95 on every telehealth claim.

Using historical modifier instructions without confirming current payer requirements may cause unnecessary claim corrections or reimbursement delays.

For Medicare professional claims, practices should follow current CMS instructions for the service and claim type rather than automatically appending a telehealth modifier.

Practical fix: Maintain payer-specific modifier guidelines and update billing system rules whenever reporting requirements change.

POS 02 vs. POS 10: How Location Errors Affect Telehealth Claims

Place-of-service codes identify the setting associated with a healthcare service.

For telehealth professional claims, CMS distinguishes between two important codes:

• POS 02: Telehealth provided while the patient is somewhere other than their home.
• POS 10: Telehealth provided while the patient is in their home.

These codes describe the patient’s location, not simply the location of the physician delivering the service.

According to the CMS Place of Service Code Set, the distinction is important for accurate claim reporting.

For example, a physician may conduct a video consultation from an office while the patient participates from home. When applicable, POS 10 identifies that patient location.

If the same patient receives telehealth services from another eligible healthcare facility, POS 02 may be appropriate.

The difference can also affect reimbursement. Medicare generally pays eligible professional telehealth services furnished to patients at home using the non-facility Physician Fee Schedule rate.

Incorrect POS reporting may therefore result in payment discrepancies, denials, or additional claim reviews.

Practical fix: Capture the patient’s location during registration or check-in, verify it against the encounter record, and apply the appropriate POS code.

For a more detailed explanation, practices can review our existing guide on POS 10 in Medical Billing.

How Incorrect Telehealth Coding Creates Revenue Leakage

Telehealth coding errors often create financial problems that extend beyond a single unpaid claim.

When a claim is rejected or denied, billing staff must investigate the issue, review documentation, confirm payer requirements, and determine whether correction or appeal is appropriate.

During this process, the outstanding balance remains unpaid.

Repeated errors can create additional problems:

• Higher administrative costs from claim rework.
• Longer reimbursement cycles.
• Increased A/R aging.
• Incorrect payments that require reconciliation.
• Reduced visibility into actual revenue cycle performance.

Consider a practice that repeatedly reports the wrong POS code for virtual visits. Correcting individual claims may recover some payments, but the underlying problem will continue until the registration or billing workflow is fixed.

The most effective response is to correct the process responsible for the error, not simply resubmit every affected claim.

Regular reviews of telehealth coding, modifier use, and payer-specific requirements can help practices identify these patterns before they create larger billing backlogs.

However, accurate coding alone does not guarantee reimbursement.

Medicare coverage requirements, commercial payer policies, clinical documentation, and service eligibility introduce additional risks that require separate verification.

Understanding those differences is the next step toward preventing telehealth denials and protecting practice revenue.

What Changed in Medicare Telehealth Billing for 2026?

Medicare telehealth billing in 2026 involves a combination of temporary extensions, permanent coverage provisions, and service-specific reimbursement rules.

For healthcare practices, the challenge is determining which requirements apply to a particular encounter. Using outdated guidance can result in denied claims, incorrect coding, or unnecessary payment delays.

Medicare Telehealth Flexibilities Extended Through 2027

Federal legislation extended several Medicare telehealth flexibilities through December 31, 2027.

According to the HHS Medicare Telehealth Policy Updates, these extensions include:

• Medicare beneficiaries can receive eligible non-behavioral telehealth services at home without the previous geographic restrictions.
• Eligible practitioners can continue furnishing covered Medicare telehealth services under the extended provisions.
• Rural Health Clinics (RHCs) and Federally Qualified Health Centers (FQHCs) can continue serving as distant-site providers for eligible non-behavioral telehealth services.
• Certain audio-only telehealth arrangements remain available.
• The requirement for an initial in-person behavioral health visit and subsequent annual visits remains suspended through December 31, 2027.

Some behavioral health telehealth provisions are permanent, including Medicare’s broader home-based and geographic coverage exceptions.

However, these extensions do not mean every virtual encounter qualifies for reimbursement.

Providers must verify that the reported CPT or HCPCS code is covered for telehealth, that the practitioner and service meet applicable requirements, and that the claim follows the correct billing instructions.

Practical fix: Review the CMS Medicare Telehealth Services List before billing unfamiliar procedures. Maintain updated billing policies that distinguish permanent coverage rules from temporary extensions.

Audio-Only Telehealth Billing Requires Additional Verification

Audio-only services remain an important part of Medicare telehealth coverage, particularly when patients cannot access or do not consent to video technology.

Under applicable Medicare rules, a qualifying encounter may use real-time audio-only communication when the patient is at home, the practitioner is technically capable of using interactive audio-video technology, and the patient cannot or does not consent to using video.

However, the service must still meet Medicare’s coverage and documentation requirements.

Practices should not assume that every telephone consultation is billable under the same rules as a video visit.

The billing team should confirm:

• Whether the service is eligible for audio-only delivery.
• Whether the encounter documentation supports the communication method.
• Which modifier or other claim reporting requirements apply.
• Whether the billed service meets applicable medical necessity and coding standards.

RHCs and FQHCs must also account for their updated distant-site telehealth reporting requirements effective October 1, 2026.

Practical fix: Maintain separate billing validation rules for audio-video and audio-only encounters. This reduces the risk of applying the wrong modifier or submitting a service that does not qualify under the payer’s policy.

Why Do Telehealth Billing Rules Differ Across Payers?

One of the most common telehealth reimbursement mistakes is assuming that a billing method accepted by Medicare will also work for every other insurer.

In reality, Medicare, Medicare Advantage, Medicaid, and commercial plans may have different requirements for covered services, authorization, modifiers, provider participation, and reimbursement.

Medicare vs. Medicare Advantage Requirements

Original Medicare follows federal coverage and billing policies. Medicare Advantage plans must cover medically necessary services included under Original Medicare and may offer additional telehealth benefits.

However, Medicare Advantage plans can have separate network arrangements, authorization procedures, and claims-processing requirements.

For example, a telehealth service may be covered under Medicare, but a Medicare Advantage claim could still encounter a problem if the provider does not meet applicable network or authorization requirements.

Practical fix: Verify the patient’s specific Medicare Advantage plan before the appointment. Confirm network participation, coverage, authorization requirements, and claim submission instructions rather than relying only on Original Medicare policies.

Medicaid and Commercial Telehealth Coverage Differences

Medicaid telehealth coverage varies by state. States have flexibility in determining eligible services, practitioners, delivery methods, and reimbursement arrangements within federal requirements.

Some state Medicaid programs cover eligible audio-only encounters or remote monitoring, while others apply different limitations.

Commercial insurers also maintain plan-specific telehealth policies. Coverage may depend on the patient’s benefit package, service type, network, and applicable state requirements.

The Medicaid telehealth reimbursement guidance explains how state programs can establish different coverage and payment approaches.

For billing teams handling multiple insurance networks, these differences create opportunities for repeated claim errors.

Practical fix: Maintain a payer-specific telehealth billing reference that identifies covered modalities, required codes, modifiers, authorization rules, and reimbursement conditions. Verify changes directly with the payer.

Provider Credentialing and Patient Location Issues

Telehealth allows providers to treat patients remotely, but geographic flexibility does not eliminate professional licensing and enrollment requirements.

A practitioner may be enrolled with an insurer but still face restrictions when treating a patient located in another state.

State licensing rules commonly depend on the patient’s physical location during the encounter.

Additionally, payer enrollment records and network participation must accurately reflect the provider’s applicable billing arrangements.

Practical fix: Confirm the patient’s state at the time of service and verify the practitioner’s legal authority to provide care there. Review payer credentialing and enrollment requirements before expanding virtual services into new locations.

Documentation Problems That Trigger Telehealth Denials

Accurate CPT codes and modifiers cannot compensate for incomplete clinical documentation.

Telehealth claims must be supported by records demonstrating that the reported service occurred, met applicable coverage criteria, and was documented appropriately.

Common documentation weaknesses include:

• Missing information about whether the encounter was audio-video or audio-only.
• Inaccurate or incomplete patient location information.
• Insufficient clinical evidence supporting medical necessity.
• E/M code selection that is not supported by the documented service.
• Missing consent or other information required for the particular service or payer.

For example, if a practice bills an audio-video encounter but the medical record does not clearly establish how the visit occurred, the claim may be questioned during a payer review.

Similarly, reporting a higher E/M level without sufficient supporting documentation creates reimbursement and compliance risks.

Practical fix: Standardize telehealth encounter documentation. Capture the modality, patient location, clinical findings, medical decision-making or time when relevant, and any service-specific information required by the payer.

Documentation should reflect what actually occurred rather than automatically populating details that staff have not verified.

Common Telehealth Claim Denials and Practical Fixes

Telehealth denials may originate from registration, clinical documentation, coding, payer verification, or claim submission.

Identifying the root cause helps practices choose the appropriate correction and avoid repeat denials.

Why Repeated Claim Resubmissions Are Not Enough

A denial may be corrected successfully without resolving the operational problem that caused it.

For example, repeated POS errors may originate from a registration process that fails to capture where patients are physically located during virtual appointments.

Likewise, recurring modifier denials may indicate that billing software has not been updated to reflect the payer’s current instructions.

Correcting individual claims can recover revenue, but it does not prevent the same errors from appearing again.

Practices should therefore connect denial reports with the workflows responsible for the original claims.

How Practices Can Prevent Repeat Telehealth Denials

Effective denial prevention requires coordination between front-desk staff, clinical teams, coders, and billing personnel.

Healthcare practices can strengthen their processes through five practical controls:

1. Verify coverage before the encounter. Confirm eligibility, covered telehealth services, network participation, and authorization requirements.
2. Capture accurate encounter details. Record the patient’s location and actual communication method, including whether the visit was audio-video or audio-only.
3. Validate coding before submission. Check CPT or HCPCS codes, modifiers, POS reporting, and the applicable payer instructions.
4. Monitor payer-specific denial patterns. Separate coding errors, authorization failures, noncovered services, and documentation problems to identify recurring causes.
5. Update workflows when policies change. Review Medicare updates, state Medicaid guidance, and commercial payer bulletins. Communicate relevant changes to registration, clinical, and billing staff.

These controls are particularly important for practices serving patients across multiple states or operating high-volume virtual care programs.

Even with stronger prevention measures, some claims will require appeals, payment investigations, or additional payer follow-up.

When these claims remain unresolved, reimbursement delays can accumulate into aging A/R and reduce the practice’s financial visibility.

A structured recovery process and periodic telehealth billing audit can help identify outstanding revenue, recurring payer problems, and opportunities to strengthen future claim performance.

How Telehealth Practices Can Recover Aging A/R

Telehealth claim denials can become a serious revenue cycle problem when unresolved balances remain in accounts receivable (A/R).

A claim denied because of an incorrect modifier may be relatively straightforward to correct. However, claims involving medical necessity, payer coverage, or provider enrollment often require additional investigation.

Without consistent follow-up, these balances can remain unpaid for months.

Prioritize Outstanding Claims by Denial Reason

Practices should begin by separating unpaid telehealth claims according to their underlying problems rather than treating every aging balance the same way.

Common categories include coding and modifier errors, incorrect POS reporting, authorization denials, coverage disputes, and underpayments.

Billing teams should review outstanding balances in the 30, 60, and 90-day aging categories while prioritizing claims approaching filing or appeal deadlines.

For Original Medicare, initial claims generally must be submitted within 12 months of the service date, subject to limited exceptions. Medicare redetermination requests generally must be filed within 120 days of receiving the initial determination.

Commercial payer deadlines can differ considerably.

Practical fix: Maintain a claim-level follow-up record showing the outstanding amount, denial reason, payer response, required action, and applicable deadline.

This makes it easier to identify recoverable revenue and prevent claims from being overlooked.

Investigate Underpayments and Unresolved Denials

Not every revenue loss appears as an outright denial.

A telehealth claim may be processed and paid at an unexpected amount because of a place-of-service discrepancy, contract interpretation, or payer processing error.

Billing teams should compare payments against applicable reimbursement arrangements and investigate unexplained differences.

Claim Adjustment Reason Codes (CARCs) and Remittance Advice Remark Codes (RARCs) can help identify why payments were reduced or denied.

Prevention strategy: Track repeated payment discrepancies by payer, procedure, and denial category. Use those findings to correct the underlying billing workflow rather than repeatedly submitting similar adjustments.

What Should a Telehealth Billing Audit Examine?

A telehealth billing audit helps healthcare practices identify reimbursement problems that routine claim follow-up may not reveal.

An effective audit should include a representative sample of paid, denied, corrected, and aging claims across different payers and virtual care services.

Five areas deserve particular attention:

• Service eligibility: Confirm that billed encounters qualify under the applicable Medicare, Medicaid, or commercial payer policy.
• Modifiers and POS codes: Verify that reported modifiers match the actual communication method and that POS codes reflect the patient’s location.
• Clinical documentation: Review medical necessity, encounter modality, E/M coding support, and required service details.
• Authorization and enrollment: Examine missing approvals, provider credentialing discrepancies, and network-related denials.
• Payment accuracy and A/R: Identify recurring denials, underpayments, unresolved appeals, and delayed payer responses.

The most valuable audit findings are those that lead to operational improvements.

For example, repeated POS 10 errors may indicate that patient location is not being captured correctly during virtual check-in.

Similarly, a pattern of audio-only claim denials may reveal outdated billing rules or inconsistent encounter documentation.

Correcting these issues at their source can reduce future rework and improve payment consistency.

Which Telehealth Revenue Cycle Metrics Matter Most?

Healthcare practices do not need dozens of reports to identify telehealth revenue problems. A few well-defined indicators can provide meaningful insights.

Initial Claim Denial Rate: Measures the percentage of submitted claims initially denied by payers, helping identify recurring coverage, coding, and documentation problems.

First-Pass Claim Acceptance Rate: Shows how many claims pass initial submission and clearinghouse checks without rejection. This should be tracked separately from payer adjudication outcomes.

Days in A/R: Measures how long outstanding payments remain unresolved and whether reimbursement delays are increasing.

A/R Over 90 Days: Highlights older balances that may require targeted follow-up, escalation, or appeal review.

Denial Resolution Time: Measures how quickly denied claims are investigated and resolved.

Practices should review these indicators by payer and service type whenever possible.

For example, rising denials for audio-only behavioral health visits may require a different response than underpayments affecting video-based primary care appointments.

Separating these trends allows billing teams to focus on the actual source of revenue loss.

Frequently Asked Questions About Telehealth Billing Challenges in 2026

What Are the Most Common Telehealth Billing Errors in 2026?

Common errors include incorrect POS codes, missing or inappropriate telehealth modifiers, outdated payer instructions, unsupported E/M coding, and insufficient medical necessity documentation.

Verifying claim details against current payer requirements helps reduce these problems.

When Should Providers Use POS 02 Instead of POS 10?

For applicable Medicare professional telehealth claims, POS 02 generally identifies services provided when the patient is somewhere other than their home. POS 10 identifies telehealth provided while the patient is at home.

Practices should follow current payer-specific reporting requirements.

Is Modifier 95 Required for Every Telehealth Claim?

No. Modifier requirements depend on the payer, service, encounter modality, and billing setting.

Modifier 95 identifies qualifying real-time audio-video telemedicine services, but it should not automatically be added to every claim.

For example, Medicare RHC and FQHC distant-site telehealth reporting requirements changed on October 1, 2026, with modifiers 93 and 95 used as appropriate.

Does Medicare Cover Audio-Only Telehealth in 2026?

Yes, Medicare covers qualifying audio-only telehealth services when applicable coverage requirements are met.

Certain Medicare telehealth flexibilities have been extended through December 31, 2027. Permanent provisions also apply to specific services and circumstances.

Coverage still depends on the service, patient circumstances, provider eligibility, and current Medicare rules.

How Can Practices Reduce Telehealth Billing Denials?

Practices can reduce avoidable denials by verifying coverage before appointments, documenting encounter modality and patient location, applying correct codes and modifiers, and reviewing payer-specific denial trends.

Regular billing audits and timely A/R follow-up can also help identify recurring problems before they create larger reimbursement backlogs.

How Pro Medical Billing Solutions Helps Improve Telehealth Revenue Cycles

Telehealth reimbursement requires coordination across eligibility verification, clinical documentation, coding, payer requirements, and claim follow-up.

Pro Medical Billing Solutions (PROMBS) supports virtual-first organizations, hybrid practices, and healthcare groups with specialty-focused medical billing, coding review, denial management, A/R recovery, and revenue cycle reporting.

Our approach focuses on identifying the operational issues responsible for delayed payments and helping practices improve billing accuracy and financial visibility.

Whether a practice is experiencing recurring modifier denials, inconsistent payer reimbursements, or growing A/R balances, a structured billing review can help reveal where revenue is being delayed.