The Audio-Only Problem Most Behavioral Health Practices Are Still Getting Wrong in 2026

Across the roughly 50 behavioral health practices we work with at Revenant Care Group, audio-only telehealth billing is consistently one of the top three denial generators we find in initial audits. The coverage landscape shifted significantly after the COVID-era flexibilities were codified or rescinded, and most practices are either still billing audio-only visits the way they did in 2021 or have overcorrected and stopped billing them entirely, leaving real revenue on the table.

What follows is a working guide to where audio-only behavioral health telehealth actually stands in 2026, which payers cover it, what codes and modifiers apply, and what the denial patterns look like when something goes wrong. This is not a theoretical overview. It is what we are actively seeing in claims data right now.

The Federal Baseline: What Medicare Actually Covers for Audio-Only BH Telehealth in 2026

Medicare’s audio-only telehealth coverage for behavioral health was made permanent by the Consolidated Appropriations Act of 2023, and that permanence carries forward into 2026. Specifically, Medicare allows audio-only delivery of mental health services when the beneficiary lacks the technical capability or ability to use two-way audio-visual technology, and the provider documents that reason in the medical record.

The CPT codes that Medicare accepts for audio-only behavioral health visits in 2026 include:

• 99441 (telephone E/M, 5-10 minutes of medical discussion)
• 99442 (telephone E/M, 11-20 minutes)
• 99443 (telephone E/M, 21-30 minutes)
• 90832, 90834, 90837 (individual psychotherapy, 30/45/60 minutes) when billed with modifier 93
• 90846, 90847 (family psychotherapy) with modifier 93

Modifier 93 is the audio-only modifier. Place of Service code 02 is used when the patient is not at home, and 10 when the patient is at their home location. Getting POS wrong between 02 and 10 is one of the most common technical denials we catch, and a POS mismatch on a modifier 93 claim almost always results in denial or reimbursement at the wrong rate. The 2026 Medicare Physician Fee Schedule maintains separate payment rates for POS 02 versus POS 10, with POS 10 generally carrying slightly higher facility-adjusted rates for psychotherapy codes.

The Documentation Trap That Is Generating Most Audio-Only Denials

Medicare’s permanent coverage of audio-only behavioral health visits comes with a documentation requirement that is not optional: the medical record must reflect that the patient either lacks the technological capability for video or that the patient was unable to use video for a particular encounter. Practices that have built this into their intake and visit workflows are clearing audio-only claims cleanly. Practices that have not are seeing denial rates on modifier 93 claims in the 28 to 35 percent range, based on what we see in incoming audits.

The specific language does not need to be elaborate. A templated note entry that reads “Patient confirmed inability to access video technology for this encounter” is sufficient if it appears in the visit documentation. What will not survive a payer audit is a chart that is silent on the topic entirely. If you are billing modifier 93 and your clinical templates do not prompt for this language, that is a correction you can make this week.

This also connects to a broader parity issue. When audio-only mental health claims are denied and the same payer covers audio-only medical visits, that is a potential MHPAEA violation worth pursuing. We have written about how to approach these parity-based appeals in detail: Mental Health Parity Act Appeals: How Behavioral Health Practices Are Leaving Money on the Table.

Commercial Payer Coverage in 2026: What We Are Actually Seeing

Commercial payer coverage for audio-only behavioral health telehealth in 2026 is inconsistent and plan-dependent. Here is the pattern we are seeing across our client base:

• Anthem/BCBS plans: Generally cover audio-only for behavioral health with modifier 93 and require POS 10 or 02 depending on patient location. Some regional BCBS plans still require prior authorization for audio-only services beyond a set number of visits per year.
• UnitedHealthcare: Covers audio-only behavioral health for most commercial and Medicare Advantage plans. Their 2026 telehealth policy requires modifier 93 and documentation of patient audio-only election. UHC’s MA plans have shown higher denial rates on 99441-99443 than on the psychotherapy codes with 93.
• Aetna/CVS: Covers audio-only behavioral health with modifier 93. We are seeing some Aetna commercial plans require a specific network telehealth addendum, and practices without it on file are getting technical denials even on clean claims.
• Cigna: Audio-only coverage is more restricted on Cigna commercial plans. We have seen Cigna deny audio-only visits at a higher rate than any other major commercial payer in 2025 and into 2026, particularly when the patient record does not explicitly document the reason for audio-only.
• Medicaid: State-by-state. As of 2026, most state Medicaid programs that expanded telehealth during the public health emergency have retained audio-only coverage for behavioral health specifically, but the modifier and POS requirements vary by state. If your practice bills Medicaid in multiple states, each state’s fee schedule and telehealth policy needs to be mapped separately.

The Revenue Impact: What Audio-Only Denials Cost by Practice Size

In practices billing fewer than 100 telehealth encounters per month, unresolved audio-only denials typically represent between $1,800 and $3,500 in monthly write-offs when they are not appealed or corrected. For practices billing 200 to 400 telehealth visits per month, that figure climbs to $6,000 to $14,000 per month in uncollected audio-only revenue, depending on payer mix and average reimbursement per visit.

The reason those dollars stay lost is not that the claims are unappealable. Most modifier 93 technical denials are correctable on first-level appeal with added documentation. The reason they stay lost is that most practices do not have a denial workflow specifically categorizing audio-only telehealth denials as a trackable bucket. They get absorbed into general telehealth denial pools and written off at 90 or 120 days. Building that denial category into your RCM workflow is the single fastest way to recover audio-only revenue without changing anything about your clinical operations.

Practical Steps Your RCM Team Should Take Before Billing Audio-Only in 2026

• Verify your credentialing files include any telehealth or audio-only addenda required by Aetna, UHC, and regional BCBS plans.
• Confirm your EHR templates prompt for audio-only election documentation at the point of visit completion, not as an afterthought.
• Map your Medicaid states individually. Do not assume uniform modifier and POS requirements across state lines.
• Build a separate denial category for modifier 93 and audio-only telephone E/M codes so you can track and trend denial rates by payer.
• Run a 90-day lookback on 99441, 99442, 99443, and any psychotherapy code billed with modifier 93. Identify what was denied versus paid and appeal the correctable ones before they hit timely filing limits.

If your practice also provides SUD services alongside behavioral health, your telehealth billing complexity is compounded. And if you have not reviewed your drug screen coding recently, the revenue gap there is substantial as well. We have covered the most common SUD coding errors in this post: G0480-G0483 Drug Screen Coding: Why Most SUD Practices Are Under-Coding and Leaving 4-5x Revenue Per Test.

Take the Next Step: Free 30-Day Denial Audit

If you are unsure what your actual audio-only telehealth denial rate looks like, or you suspect your team is writing off correctable modifier 93 claims, we can show you exactly where the money is going. At Revenant Care Group, we offer a free 30-day denial audit for behavioral health, SUD, and ABA practices. You will get a line-by-line breakdown of your denial patterns, payer-by-payer recovery opportunities, and a prioritized action plan your billing team can execute immediately. Schedule your free audit here and let us show you what is recoverable before it hits your write-off column.