Most therapists find out about billing code changes when a claim comes back denied. That's the expensive way to learn.
The AMA released 288 new or revised CPT codes for 2026. Several of them directly affect behavioral health billing — what you can bill, what documentation is required, and in some cases, whether you've been doing it wrong already. Here are the ones that matter for solo outpatient practice.
Remote Monitoring Codes: New Revenue Category, But Read the Fine Print
Two new remote physiologic monitoring codes are now on the books for 2026. They're designed for clinical time spent reviewing data from remote monitoring tools — mood tracking apps, symptom-logging software, biometric devices your patient is using between sessions.
The codes capture time in 2–15 day windows. To bill them, your documentation needs to be specific: the date and duration of your review, what the data showed, and the clinical decision that followed. It needs to tie to an established patient with an active treatment plan. Vague notes won't hold up.
Here's the problem. Most major payers — Cigna, Aetna, and most regional BCBS plans — haven't finalized coverage policies for these codes yet. Before you add them to your workflow, call your top three payers and ask directly whether the codes are covered. A code being CPT-official doesn't mean your payer will reimburse it.
Appendix P and T: Four Telehealth Codes Got an Upgrade
CPT Appendices P and T govern which codes are eligible for telehealth billing — Appendix P for synchronous (real-time) audio/video, Appendix T for asynchronous services. Four codes got added to these lists for 2026: 90791 (psychiatric diagnostic evaluation), 90834 (psychotherapy, 45 min), 90837 (psychotherapy, 60 min), and 90847 (family psychotherapy with patient present).
For Medicare, this matters immediately. If you've been billing any of these via telehealth and running into problems, the 2026 update formalizes what was previously just a temporary flexibility.
The 90847 addition to Appendix T is worth noting specifically. It qualifies as an asynchronous telecommunications service under Medicare. If you're doing couples or family work under Medicare, make sure your claims are documenting the modality clearly — and double-check that your billing software is transmitting the right modifier.
For commercial payers: these appendix updates don't automatically override individual payer policy. Verify telehealth coverage for each one before assuming the code is billable.
Digital Therapeutics Codes: Track Them, Don't Bank on Them
New Category III codes were added for prescription digital therapeutics — FDA-cleared software tools that function as treatments and are prescribed by a licensed provider. These codes capture the clinical management time associated with those tools.
Category III codes are temporary. They exist to collect data on emerging services, not to create stable billing pathways. Most commercial payers aren't covering them yet, and there's no guarantee they ever will.
If you're using tools that qualify and want to document the clinical time, you can append these codes. Don't count on getting paid for them right now. Think of them as documentation practice for a billing category that may or may not mature.
The Documentation Problem That Runs Through All of This
Every new code above requires documentation that explicitly links clinical decision-making to the service billed. That's always been true in principle. In practice, most solo practice notes are written to capture what happened, not to justify what was billed.
For remote monitoring: your note needs to say what data you reviewed, what it showed, and what you decided as a result. "Reviewed mood tracking" isn't enough.
For telehealth codes: your documentation needs to reflect the modality used, the platform, and that the patient was located in an eligible site.
If your progress note templates don't capture that structure, the codes are technically unsupported — even if the work was done. The audit risk is real, and it compounds when you're billing codes that are newer and already drawing scrutiny.
Clean up your templates now. It's a one-hour fix that protects every claim you file going forward.
What to Do This Week
Don't assume any of the new 2026 codes are billable with your current payers without confirming. Pull your payer fee schedules for the codes you bill most. Call your top three payers and ask specifically about 2026 coverage policy updates for behavioral health. Review your note templates against the documentation requirements for any new code you're considering.
Most therapists will ignore this until a denial shows up. The ones who don't will catch problems before they cost money.
Stay current, or get surprised by a denial.
If this kind of practical billing content is useful to you, the therapypractice.ai email list is where more of it lives — built for solo practice owners who bill insurance and want the business side to stop being a guessing game. Join at therapypractice.ai.