Cardiology CPT Codes Guide 2026 — New, Deleted & Revised Codes

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The American Medical Association (AMA) introduces CPT codes and updates them each year based on clinical documentation requirements, claim management rules, and reimbursement rates. These coding changes occur because providers and facilities develop new procedures and treatments that require CPT codes for insurance billing. If others relate to existing codes, payers revise them by adding bundling or non-bundling rules and more to ensure practices get reimbursed on time while maintaining healthcare standards.

The same process happens every year with cardiology CPT codes, helping keep billing accurate and smooth while capturing treatment and procedure data to maintain healthcare billing standards. In cardiology billing, a minor mistake in CPT codes, missing modifiers, or an incorrect ICD-10 code pair can lead to denials that hurt your practice’s revenue.

In this blog, we list the new, deleted, and revised cardiology CPT codes, along with common ones in detail, to help you use appropriate, up-to-date codes and avoid claim rejections or denials.

What are Cardiology CPT Codes?

Cardiology CPT codes are Current Procedural Terminology (CPT) codes that describe the services or treatments delivered to patients. These codes help health insurance companies understand what type of treatment/procedure is conducted, so they can reimburse accordingly. Each cardiology CPT code represents the service type, such as diagnostic, interventional, or any cardiovascular treatment, and a wrong selection can lead to claim rejections.

How Cardiology CPT Codes Are Categorized

Cardiology CPT codes fall into two main categories: cardiovascular procedures (92920-93799) and non-invasive vascular diagnostic studies (93880-93998). However, these fall into further subcategories, such as therapeutic cardiovascular, cardiography, phrenic nerve stimulation, echocardiography, cardiac catheterization, non-invasive extremity arterial-venous studies, and more. Each one has its own CPT coding ranges, which directly affect reimbursements, as one wrong code can delay payments or even result in denials.

New, Deleted & Revised CPT Codes for 2026 Cardiology Billing

The American Medical Association (AMA) updates cardiology CPT codes every year by deleting, revising, and adding codes based on procedures and treatments. Here’s a quick overview of the 2026 cardiology billing code updates.

2026 Cardiology CPT Codes Updates	Decsriptions
New CPT Codes	92930 for complex PCI and diagnostic service. 92945 for chronic total occlusion using combined approaches. 75577 for quantitative plaque assessment. 0992T, 0993T–0995T, 0962T for AI-based or algorithm-based cardiac assessment.
Deleted CPT Codes	92921, 92925, 92929, 92934, 92938, 92944, 92975, and 92977.
Revised CPT Codes	37220–37235 were replaced by new territory-based codes 37254–37299. 0623T–0626T and 0266T–0273T were updated. Primary PCI-based codes were revised, including 92920, 92924, 92928, 92933, 92937, 92941, and 92943.

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Detailed Explanation of Common Cardiology CPT Codes in 2026

Here’s a detailed explanation of common cardiology CPT codes in 2026 to help you understand each one well and use the most appropriate one for billing the related service or procedure.

Therapeutic Cardiovascular Services and Procedures (92920-92998)

Therapeutic cardiovascular services and procedures used to treat heart diseases via catheter-based or surgical treatments that help fix heart or blood vessel problems. These procedures also help improve blood flow and correct abnormal heart rhythms. Here are the common codes used for billing these services/treatments.

Code	Decsriptions
92920	Catheter treatment through the skin via a percutaneous approach; applies to angioplasty in one major coronary artery or more of its branches.
92924	Atherectomy with angioplasty to remove or shave away plaque from arteries in one major or more of its branches.
92928	Deployment of one or more stents to keep the coronary artery open.
92930	Multiple separate coronary lesions with multiple stents, or bifurcation lesion for both artery and its side branches treatment with angioplasty, stent, or both.
92933	Atherectomy with one or more stent placements to hold the artery open.
92937	Revascularization by angioplasty, atherectomy, or stent placement to the blocked or narrowed arteries.
92941	Bypass graft or thrombectomy.
92943	Chronic total occlusion treatment via angioplasty, stent placement, or atherectomy for a single coronary artery, branch, or bypass graft.
92950	Cardiopulmonary arrest for oxygen supply to the lungs.
92953	Electrical impulses bypass through the heart to treat abnormal heart rate.
92960	Electric shock using an external defibrillator.

Cardiography Procedures (93000-93153)

Cardiography procedures identify heart movements, rhythms, and electrical activity.

Code	Decsriptions
93000	Electrical conduction of the heart of at least 12 leads, and generation of a complete report of the findings.
93005	Examination of heart abnormality via electrical conduction of at least 12 leads; no reports included.
93010	Interpretation and reports on 12 or more leads.
93025	Small alteration analysis in T waves on an electrocardiographic recording of the heart.

Phrenic Nerve Stimulation System (93150-93153)

Phrenic nerve stimulation system is a medical technique in which the provider uses mild electrical pulses ( a device) to make the diaphragm contract and help patients breathe easily.

Code	Decsriptions
93150	Therapy activation of an implanted phrenic nerve stimulation system, including evaluation and programming of the device.
93151	Interrogation and programming of at least one parameter of phrenic nerve stimulation system.
93152	Interrogation and programming during sleep study.
93153	Phrenic nerve stimulation system interrogation without programming.

Cardiovascular Monitoring Services (93224-93278)

Cardiovascular monitoring services are a medical process through which a patient’s heart rhythms, rate, blood pressure, and overall heart activity are measured to diagnose and manage heart conditions.

Code	Decsriptions
93224	Implantation of an electrocardiographic or ECG recorder to the patient for up to 48 hours, and the doctor analyzes, compiles, and interprets the findings.
93241	48hours to seven days of electrocardiographic or ECG recording to detect abnormal heart rates and rhythms. Also, it includes recording, analyzing, compiling, and interpreting the findings.
93245	48hours to 15 days of electrocardiographic or ECG recording to detect abnormal heart rates and rhythms. Also, it includes recording, analyzing, compiling, and interpreting the findings.

Implantable, Insertable, and Wearable Cardiac Device Evaluations (93279-93298)

Implantable, insertable, and wearable cardiac device evaluations are the medical assessments that are used to check, program, and analyze data from the devices that monitor heart rhythms.

Code	Decsriptions
93145-93146	Evaluation of an implanted carotid sinus baroreflex activation therapy (BAT) modulation system with/without reprogramming of the device.
93286-93287	Face-to-face evaluation of a single, dual, multiple–lead, or leadless pacemaker system before or after a procedure and prepare a report.
93294	Remotely analyze the function of a single-, dual-, multiple-lead, or leadless pacemaker system for up to 90 days and prepare a report.
93297	Evaluation of physiological data from implantable physiologic cardiovascular monitoring system during a period of 30 days.

Echocardiography Procedures (93303-93356)

Echocardiography procedure is a safe, painless ultrasound that uses high-frequency sound to check waves and create pictures of moving heart chambers, valves, and blood flow.

Code	Decsriptions
93303	Complete transthoracic echocardiography.
93306	Two-dimensional images of heart structures using transducers.
93312	Transesophageal echocardiography or TEE for two-dimensional image of the heart.
93325	Doppler echocardiography for two-dimensional representation of blood flow in the heart.
93350	Transthoracic echocardiography for evaluation and assessment of global and ventricular performance and cardiac causes of chest pain via images.

Cardiac Catheterization Procedures (93451-93598)

Cardiac catheterization procedure involves inserting a thin, flexible tube called a catheter into a blood vessel and guiding it to the heart to help diagnose and treat heart conditions.

Code	Decsriptions
93452	Catheter placement in a left-sided systemic cardiac chamber, left ventricle or left atrium.
93453	Right and left heart catheterization.
93454	Imaging supervision and interpretation of a coronary angiography.
93455	Imaging supervision and interpretation for a catheter placement in the bypass graft.
93563	Catheter placement into the coronary arteries and injection of dye to evaluate heart function. It includes a collection of images, interpretation, and report of findings.
93564	Catheterization of native arteries and any bypass graft.

Intracardiac Electrophysiological Procedures/Studies (93600-93662)

Intracardiac electrophysiological study (EPS) is a specialized, minimally invasive test that evaluates the electrical system and heart rhythms that are hidden.

Code	Decsriptions
93600	Electrical activity recording in the heart.
93602	Electrical activity recording from the upper chambers of the heart.
93603	Electrical activity recording from the lower chambers of the heart.
93609	Use of electrodes to map the electrical activity in the heart to find its origin.
93612	Physicians perform pacing from the ventricle.
93613	Use of multiple electrodes to produce a three-dimensional map of the electrical activity in the heart to find its origin.
93618	Catheter insertion for inducing an arrhythmia.
93619	Insertion and reposition multiple electrode catheters in the right atrium and right ventricle to evaluate abnormal heart rhythm disturbances.
93631	Epicardial and endocardial pacing and mapping performed during the open-heart surgery to locate the tachycardia and arrhythmia.
93642	Evaluation and reprogramming of single or dual-chamber pacing defibrillator systems.
93650	Muscle fibre destruction and temporary placement of pacemaker to regulate heartbeat.
93657	Radiofrequency ablation procedure to treat an additional source of atrial fibrillation, an abnormal heart rhythm.

Non-invasive Physiologic Studies and Procedures (93701-93790)

Non-invasive physiologic studies and procedures are the safe, painless diagnostic tests that are performed to evaluate the functioning of blood vessels and organs without requiring surgery, needles, or contrast dyes inside the body.

Code	Decsriptions
93701	For Bioimpedance study.
93702	Determination of extracellular fluid in tissues, to detect early lymphedema.
93784	Ambulatory blood pressure monitoring for over 24 hours and scans the data, interprets it, and reports the findings.
93786	Ambulatory blood pressure monitoring for over 24 hours and only recording the results.

Modifiers for Cardiology CPT Codes

Modifiers refer to two-digit numeric or alphanumeric digits that clarify how, where, or under what circumstances a procedure was performed. They can affect reimbursement and help prevent claim denials when a procedure needs additional context.

Here are the most common modifiers used for cardiology billing, along with their meaning and examples to help you understand better.

Modifier	Meaning	Cardiology Example
25	Significant, separately identifiable E/M service on the same day as another procedure.	A cardiologist performs an E/M visit and a separate diagnostic procedure during the same encounter.
26	Professional component	Used when the cardiologist provides the interpretation/report but another entity owns or operates the equipment.
TC	Technical component	Used for the equipment, facility, technician, and other technical portion of a service.
59	Distinct procedural service	Indicates that two procedures were performed separately and should not be bundled.
76	Repeat procedure/service by the same physician or qualified professional.	A cardiac diagnostic procedure needs to be repeated by the same provider.
77	Repeat procedure by another physician or qualified healthcare professional.	A procedure is repeated by a different provider.
52	Reduced services	A planned cardiology procedure is partially performed or reduced.
53	Discontinued procedure	A procedure is started but discontinued due to circumstances such as patient safety.
24	Unrelated E/M service during a postoperative period.	A patient returns during the global period for an unrelated cardiac issue.
79	Unrelated procedure/service during the postoperative period.	A separate, unrelated cardiology procedure is performed during the global period.
91	Repeat clinical diagnostic laboratory test.	Used when the same lab test must be repeated to obtain additional clinical information.

Conclusion

In short, to bill cardiology services and procedures, you always need to use correct, updated, and most appropriate CPT codes that help the insurer understand what procedure is delivered to the patient.

Every year, AMA modifies the CPT codes by adding new codes and revising the old ones, or deleting some of them, which directly affects reimbursements, as a minor error leads to payment delays and even denials.

Throughout the guide, we have discussed the most common cardiology billing CPT codes, along with new, deleted, and revised ones that are effective from January 1, 2026. So, use the correct CPT codes along with appropriate modifiers and start receiving reimbursements on time without any delays.

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Frequently Asked Questions

What are the changes in Cardiology CPT codes for 2026?

The AMA introduces new cardiology CPT codes for percutaneous coronary intervention (PCI), Lower Extremity Revascularizations, remote physiologic monitoring, and artificial intelligence diagnostics.

What is the difference between CPT 93000 and 93005?

CPT code 93000 is used for electrical conduction of the heart with at least 12 leads, which involves a complete report of findings, while CPT code 93005 is used for the same purpose, but no report of findings is involved.

Can you bill 99214 and 93000 together?

Yes, CPT 99214 and 93000 can be billed together when the documentation supports a significant, separately identifiable E/M service in addition to the ECG. In such cases, modifier 25 may be appended to 99214. The medical record should clearly support both the E/M service and the separate ECG procedure. Payer-specific rules should also be checked before submission.

Do cardiology billing companies help with coding?

Yes, cardiology billing companies have an expert coding team that helps with cardiac catheterization, electrocardiography, phrenic nerve stimulation, and other procedures, ensures each CPT code is assigned accurately, and helps with clean claim submission.

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