2026 CPT Code Updates: What Physicians Need to Know Before Claims Get Denied

2026 CPT Code Updates: The New Codes and Billing Changes Physicians Need to Know

If you're a physician, practice manager, or the person who makes sure claims go out the door with the right codes, here's your heads-up. The 2026 CPT code set has been in effect since January 1. The American Medical Association (AMA) released it back in September 2025, and the scope alone tells you this isn't a minor refresh. We're talking 288 new codes, 84 deletions, and 46 revisions across 418 total changes.

Here's the reality every practice runs into. CPT codes change every January, and the same group of practices gets caught off guard each time. They submit claims with codes that no longer exist, miss new codes that would have boosted reimbursement, or lose money simply because nobody updated the billing software. If your practice is still seeing denials tied to deleted or revised codes, now's the time to close those gaps.

Let's walk through what actually changed, why it matters, and what to do about it.

The Big Picture: What Changed and by How Much

The 2026 CPT code set is one of the larger annual updates in recent memory. Here's the breakdown:

1. 288 new codes added across Category I, Category III, and proprietary laboratory analyses (PLA)
2. 84 codes deleted. For dates of service on or after January 1, 2026, these should no longer be used. For 2025 dates of service billed later, use the code set that was valid at that time.
3. 46 codes revised, with updated descriptors that may change how certain services are reported
4. 418 total changes, reflecting advances in digital health, AI, surgical procedures, and more

Proprietary laboratory analyses made up 27% of the new codes, the largest single category. Category III codes for emerging technologies came in close behind, also at 27%. The rest span digital health, AI, hearing services, leg revascularization, immunization counseling, and vaccine administration.

Remote Therapeutic Monitoring: Shorter Windows, More Flexibility

One of the most practical changes in the 2026 CPT code set touches remote therapeutic monitoring (RTM). The existing RTM codes (98975 to 98981), introduced back in 2022, gave practices a way to bill for remotely monitoring patients' health data. The problem was that the time and date requirements were too rigid. Practices needed a full 30-day monitoring period and a minimum of 20 minutes of interactive communication before they could even bill for treatment management.

CPT 2026 loosens that up quite a bit. According to AMA and CPT Editorial Committee meeting minutes, the new code set adds short-duration remote monitoring codes (identified as 98984, 98985, and 99445) for monitoring periods of just 2 to 15 days within a 30-day window. It also revises treatment management codes (98979 and 99470) to lower the time threshold from 20 minutes down to 10 minutes per calendar month. As always with newly introduced codes, it's worth double checking the final numbers in the published 2026 CPT manual before billing.

What does this mean in practice? If you've been providing remote monitoring but couldn't bill for it because a patient was only monitored for a week, or your team only spent 12 minutes on treatment management, you now have codes that finally capture that work.

AI and Augmented Intelligence Codes: What's New

The AI services section got a significant expansion this year. These codes cover technologies that help physicians detect clinically relevant data, analyze results, and turn them into actionable insights.

Key additions and changes include:

1. 0972T. Multi-spectral imaging for burn wounds, using algorithmic classification to determine whether a burn is healing or non-healing. It's been available since July 1, 2025, and now officially appears in the 2026 code book.
2. 0992T. Noninvasive cardiac risk assessment using augmentative software analysis of perivascular fat, without a concurrent CT scan.
3. 0993T. The same assessment, but with a concurrent cardiac CT scan.
4. 0623T to 0626T (deleted). These were the previous Category III codes for coronary plaque assessment. They've now been replaced by a single Category I code.
5. 75577. A new Category I code for coronary atherosclerotic plaque assessment using AI software analysis of coronary CT angiography data. CMS has indicated it will provide Medicare payment for this code, but practices should confirm final payment status directly with CMS and their payers.

The shift from Category III (0623T to 0626T) to a single Category I code (75577) matters more than it might seem at first glance. Category I codes carry more weight with payers, so practices using coronary plaque assessment technology should see a smoother reimbursement path going forward.

Leg Revascularization: A Complete Overhaul

The Lower Extremity Revascularization section got the most dramatic rework in the entire 2026 code set. Every previous code in this section was deleted and replaced with 46 brand new codes.

The overhaul reflects a few broader shifts happening in vascular care:

1. Technological advances in vascular procedures
2. A move toward outpatient settings for these interventions
3. Evolving models of care delivery

For vascular surgeons, interventional cardiologists, and any practice performing lower extremity revascularization, this is the single most disruptive change in the update. Every code your team was using here is gone. That means mapping old codes to new ones, updating billing software, and retraining staff on the new descriptors, and it's worth doing sooner rather than later.

Hearing Device Services: 12 New Codes

The existing hearing aid service codes (92590 to 92595) have been replaced with 12 new codes that more accurately capture the full scope of hearing device care, including:

1. Evaluation of candidacy, covering visual, dexterity, and psychosocial factors
2. Device selection and fitting
3. Validation of device performance and sound quality
4. Training and support for patients using personal devices, like smartphones connected to hearing aids

The new code range is 92628 to 92642, though practices should confirm the final numbers in the published 2026 CPT manual.

Many of these codes are time based, with add-on codes for each additional 15 minutes. That means start and stop times need to be documented, along with a clear description of what was performed. Weak documentation here can translate directly into lost reimbursement.

Immunization Counseling and Vaccine Codes

Three new Category I codes now address immunization counseling in cases where the vaccine isn't actually administered:

1. 90482. 3 to 10 minutes of counseling
2. 90483. More than 10 to 20 minutes
3. 90484. More than 20 minutes

These apply when a provider counsels a patient about a vaccine, but the patient postpones or declines it. One important caveat: CMS has indicated it will assign status indicator "I" to these codes, which means they won't be valid for Medicare. CMS uses its own codes instead (G0310 to G0313). Confirm current Medicare status and check with private payers before relying on these.

New vaccine administration codes also made the list:

1. 90631. Influenza H5 pandemic formulation, adjuvanted, intramuscular
2. 90635. Influenza H5N1, cell-derived, adjuvanted, intramuscular
3. 90612. Combined influenza (trivalent) and COVID-19 mRNA vaccine
4. 90613. Combined influenza (quadrivalent) and COVID-19 mRNA vaccine

Behavioral Health and Telehealth: Expanded Appendices

The 2026 update also adds existing behavioral health codes to Appendix P and Appendix T, the lists that identify services recognized as deliverable through audio-video and audio-only technology.

This gives behavioral health providers more flexibility, particularly those serving rural and underserved communities. If your practice delivers behavioral health services via telehealth, it's worth reviewing the updated appendices to see which codes are now explicitly recognized for remote delivery.

Your 2026 CPT Cleanup Checklist

1. Identify every deleted code your practice is still using. Pull your most recent billing reports and cross-reference them against the 84 deleted codes. Deleted codes shouldn't be used for dates of service on or after January 1, 2026. For 2025 dates of service billed later, use the code set that applied at that time.
2. Map old codes to new ones. This is especially critical for leg revascularization (46 new codes) and hearing device services (12 codes replacing 6).
3. Update your billing software and EHR. Confirm your vendor has loaded the 2026 CPT code set and that deleted codes are flagged.
4. Train your coding and billing staff, and focus on the changes most relevant to your specialty. Vascular practices should prioritize leg revascularization codes. Audiology practices should prioritize hearing device codes.
5. Review remote monitoring billing opportunities. If you provide remote monitoring but haven't been billing for it because the old windows were too restrictive, the new 2-to-15-day codes and the 10-minute threshold may unlock revenue you've been leaving on the table.
6. Check payer coverage for new Category III codes. Coverage isn't universal, so verify with your major payers before submitting claims tied to emerging technology codes.
7. Update documentation templates. New time-based codes, especially in hearing services and remote monitoring, require precise start and stop times along with service descriptions.
8. Verify CMS payment status for new codes. CMS decisions, particularly around the new immunization counseling codes, may differ from what the AMA code set allows. Check the current Medicare fee schedule directly.

Common Mistakes Practices Make During CPT Updates

1. Waiting until denials pile up to act. The first claims cycle of the year is where coding errors surface, and delaying cleanup just means a bigger backlog of avoidable denials.
2. Focusing only on new codes and ignoring deletions. A deleted code on an otherwise clean claim is an automatic denial.
3. Assuming the EHR vendor will handle everything. Vendors load the code set, but they don't map your billing workflows or train your staff.
4. Not verifying payer-specific coverage for Category III codes. A code existing doesn't guarantee every payer will reimburse it.
5. Under-documenting time-based services. The new hearing device and remote monitoring codes come with strict documentation requirements.

Frequently Asked Questions

When do the 2026 CPT code changes take effect? January 1, 2026, for Category I codes. Category III code 0972T became available on July 1, 2025, but it officially appears in the 2026 code book.

How many new CPT codes were added in 2026? 288 new codes, along with 84 deletions and 46 revisions. That's 418 total changes.

What happened to the leg revascularization codes? Every previous code in the Lower Extremity Revascularization section was deleted and replaced with 46 new codes, reflecting technological advances and the shift toward outpatient care.

Can I bill for remote monitoring if the patient was only monitored for a few days? Yes. The 2026 code set adds new codes (98984, 98985, 99445) that allow reporting for monitoring periods of 2 to 15 days within a 30-day period. Treatment management can now be billed after 10 minutes instead of 20.

Will Medicare pay for the new immunization counseling codes (90482 to 90484)? Not necessarily. CMS has proposed assigning status indicator "I" to these codes, which would make them invalid for Medicare. Medicare uses its own codes (G0310 to G0313) instead. Check with private payers separately.

Are Category III codes reimbursable by insurance? It depends on the payer. Category III codes represent emerging technologies, and while some insurers cover them, coverage isn't universal. Always verify with individual payers before reporting.

What This Means for Your Practice

The 2026 CPT code set isn't just a routine annual update. With 288 new codes touching AI, remote monitoring, telehealth, surgical procedures, and preventive services, the changes are broad enough to affect nearly every physician practice out there. The practices that start preparing now, mapping deleted codes, training staff, updating systems, and confirming payer coverage, will move through the January transition smoothly. The ones that don't will spend the first quarter of 2026 fighting avoidable denials and leaving revenue on the table.

Start with the basics this month. Pull your most-used codes, flag which ones are deleted or revised, and put together a plan to train your billing team. If your practice doesn't have the bandwidth to manage this transition on top of daily operations, it may be worth partnering with a medical billing and credentialing specialist who can handle code updates, denial management, and ongoing revenue cycle support, so your claims go out clean the first time, every time.