Cardiology CPT® Codes for 2026 + Modifiers
Jan 17, 2026
Cardiology billing in 2026 is undergoing some of the most significant structural updates in recent years. From a complete redesign of lower extremity revascularization coding to new AI-driven cardiovascular diagnostics and PCI reporting revisions, outdated billing logic can quickly lead to denials, revenue leakage, and compliance risk. If your team is still using last year’s workflows, it’s time to realign your cardiology CPT® codes and modifiers for 2026 with current AMA and CMS standards.
Cardiology denials in 2026 are rarely “random”—they’re driven by structural code changes.
We are seeing practices struggle with the 37220 series deletion, PCI reporting rule changes, and incorrect transitions from Category III to Category I AI codes. These aren’t minor edits—they fundamentally change reporting logic.
Guarantee: We’ll identify where your cardiology claims are exposed to 2026 coding risks and provide a correction roadmap.
Get My Cardiology Denial Snapshot
Contact us to receive a Denial Snapshot outlining denial drivers and workflow fixes.
The Biggest 2026 Overhaul: Peripheral Revascularization Redesign
The most significant structural update in the 2026 CPT® set is the complete redesign of lower extremity endovascular revascularization coding.
Deleted: CPT® codes 37220–37235
New for 2026: A comprehensive new bundled family of 46 CPT® codes (37254–37299)
The new family consolidates services that were previously billed separately. These bundled codes now include:
- Vascular access
- Diagnostic angiography and supervision
- Angioplasty
- Stent placement
- Atherectomy
Reporting is now determined by arterial territory and lesion complexity rather than component-based billing. This shift requires cardiology practices to retrain coding teams and reconfigure charge capture systems. Using deleted codes like 37220–37235 will trigger immediate rejections.
If you’re still billing 37220–37235, payers will reject the claim instantly.
We are seeing preventable denials when charge tickets and EMR templates were not updated to reflect 37254–37299. These are workflow failures—not payer issues.
Guarantee: We’ll pinpoint outdated code usage and implement safeguards before submission.
Fix My Revascularization Billing
Contact us for a workflow review focused on preventing invalid-code rejections.
AI Code Graduation: Category III to Category I
Artificial intelligence is now firmly embedded in cardiovascular diagnostics, and 2026 marks an important reimbursement milestone.
| CPT® Code | Description | Status |
|---|---|---|
| 75577 | Noninvasive coronary plaque analysis | New Category I (formerly 0710T) |
The transition from Category III (0710T) to Category I (75577) significantly increases reimbursement predictability and payer acceptance.
New AI Category III Codes for 2026
| CPT® Code | Description |
|---|---|
| 0992T | AI analysis of perivascular fat to assess coronary inflammation and cardiac risk |
| 0993T | Add-on AI-based perivascular inflammation analysis |
These codes support advanced imaging programs focused on preventive cardiology and inflammatory risk stratification.
AI codes deny when documentation doesn’t match technical requirements.
We frequently see incorrect reporting when teams fail to document image acquisition parameters, AI interpretation, or physician oversight requirements.
Guarantee: We’ll evaluate your AI diagnostic billing for compliance and payer defensibility.
Contact us to reduce risk on emerging cardiovascular technologies.
PCI Reporting Changes in 2026
The AMA revised percutaneous coronary intervention (PCI) reporting guidelines.
Deleted add-on codes:
- 92921
- 92925
- 92929
- 92934
- 92938
- 92944
PCI reporting now centers on the primary coronary artery treated rather than separately billing each additional branch. This reduces complexity but requires precise documentation of lesion location and treatment strategy.
PCI denials spike when teams still count “extra vessels.”
We’re seeing documentation mismatches when interventionalists describe multiple branches but coding logic doesn’t follow the new major-artery rule.
Guarantee: We’ll audit your PCI claims to align them with 2026 reporting standards.
Contact us to ensure PCI reporting aligns with updated AMA guidelines.
Remote Monitoring CPT® Codes for 2026
| CPT® Code | Description |
|---|---|
| 99445 | Remote monitoring device supply and transmission (2–15 days) |
| 99470 | Remote monitoring treatment management, first 10 minutes |
| 99457 | Remote physiologic monitoring treatment management, first 20 minutes |
| 99458 | Each additional 20 minutes |
Shorter monitoring windows now better reflect real-world cardiac rhythm and blood pressure management workflows.
Structural Heart and Valve Procedures
| CPT® Code | Description |
|---|---|
| 33365–33366 | Transcatheter aortic valve replacement (TAVR/TAVI) |
| 33405–33417 | Aortic valve replacement and repair |
| 33420–33430 | Mitral valve repair and replacement |
| 33975–33980 | Ventricular assist device insertion and removal |
While CPT® codes remain stable, CMS efficiency adjustments have slightly reduced facility-based reimbursement for some structural heart procedures.
Telehealth Modifiers for 2026
| Modifier | When Used |
|---|---|
| 93 | Audio-only telemedicine services |
| 95 | Synchronous audio-video telemedicine |
Always confirm payer-specific telehealth rules and documentation requirements before submission.
Summary of Major 2026 Cardiology Coding Changes
| 2026 Code Status | Code(s) | Impact |
|---|---|---|
| New Family | 37254–37299 | Replaces 37220 series; bundled revascularization reporting |
| New Category I | 75577 | AI plaque analysis now permanent and more reimbursable |
| New Category III | 0992T–0993T | AI inflammation analysis expansion |
| Deleted | 92921, 92925, 92929, 92934, 92938, 92944 | PCI branch add-ons eliminated |
Final Thoughts
Keeping your cardiology CPT® codes and modifiers aligned with 2026 standards protects revenue, reduces preventable denials, and strengthens audit readiness. With structural redesigns in revascularization coding and PCI reporting, proactive workflow updates are essential—not optional.
If your cardiology denials are rising in 2026, it’s likely a code-transition issue—not bad luck.
From 37254–37299 adoption to PCI reporting updates and AI code transitions, we’ve seen these exact denial patterns—and know how to correct them quickly.
Guarantee: We’ll uncover your top denial causes and give you a clear, implementable correction plan.
Get My Cardiology Denial Snapshot
Contact us today to reduce denials and strengthen reimbursement integrity.
Trademark notice: CPT is a registered trademark of the American Medical Association.
For informational purposes only.
Contact us
“My husband and I have a small practice but we were looking for a medical billing company to consult us. We originally started with a local company with some satisfaction. However, our biggest problem was that they wanted us to change our existing EMR to software that they worked with. Quest National Services worked with our existing software so that we didn’t have to make expensive changes to our infrastructure. That saved us a lot of time and headache. I would definitely say that was one of the main reasons for why we switched and why we continue to work with Quest. As a small practice, they helped us without draining our resources.”
Adriana C.
