Cardiology Billing Services

Cardiology billing services from Medical Billing Services Group (MBSG) keep diagnostic and interventional claims clean — from office visits and stress testing to catheterization and device implants. We handle prior authorizations, component bundling rules, and denials, so your practice captures the full value of every procedure.

Cardiology denials eating your margins? Get a Free Billing Audit — we will review your cath, imaging, and E&M claims and pinpoint exactly where revenue is leaking.

Practice/setting fit

Our cardiology billing services fit private cardiology groups, interventional practices, electrophysiology programs, outpatient imaging centers, and hospital-affiliated clinics. What makes cardiology billing hard is not volume alone — it is the layering: an office visit, a stress test, a diagnostic catheterization, and an intervention can all happen in one episode of care, and each layer has its own bundling rules, authorization requirements, and documentation standards.

We manage the full revenue cycle for these settings: benefits verification and prior authorization for scheduled procedures, coding that respects procedure-to-procedure edits, daily claim submission, payment posting with contractual adjustments, and denial follow-up that goes back to the procedure note. Our cardiology-savvy coding team reviews cath and EP documentation against published edit rules before claims go out, and our broader specialty billing programs cover the rest of your service lines.

Documentation and coding risks

Cardiology’s biggest billing risk is the boundary between diagnostic and procedural work. Components that look like separate services — access, dye injections, imaging guidance, tracings — are often integral to the main procedure. These are the bundling rules we apply most often, each verified against a published CMS source.

Diagnostic work bundled into the intervention

In cardiology, the line between diagnostic and interventional work is where revenue most often leaks. Under Medicare’s correct-coding rules, a percutaneous coronary intervention already includes the coronary catheterization, dye injections, and fluoroscopic guidance used to perform it — those components are not reported separately. The exception is narrow: when a medically reasonable and necessary diagnostic coronary angiography precedes the intervention, the diagnostic catheterization and its dye injections may be reported separately. Fluoroscopy, however, is never separately reportable with the diagnostic study or the catheterization. Getting this wrong in either direction costs money — unbundling triggers denials and audit risk, while failing to report a separately payable diagnostic study leaves legitimate revenue behind.

Payer/program: Medicare (CMS) · Jurisdiction: United States (federal) · Source: “National Correct Coding Initiative Policy Manual for Medicare Services, Chapter 11: Medicine and Evaluation and Management Services (CPT Codes 90000–99999)” · Publication date: edition with Medicare revision date 1/1/2024 · Effective date: 1/1/2024 · Last reviewed: 2026-10-07

ECGs during the procedure are not the same as diagnostic ECGs

ECG tracings taken during a catheterization or coronary intervention to monitor chest pain are part of the procedure and are not separately reportable. Diagnostic ECGs performed before or after the procedure are a different story — they may be reported separately with modifier 59 or XU when they stand as distinct services. The documentation must make the distinction clear: a tracing that guided the procedure is a component; a diagnostic tracing with its own interpretation is a separate service. Practices that report every tracing — or none of them — both lose.

Device and EP work has its own bundling traps

Pacemaker, defibrillator, and electrophysiology procedures require catheters placed into cardiac chambers under fluoroscopic guidance — but the catheterization codes for placing those catheters are not separately reportable, because placement is integral to the device procedure. A cardiac catheterization code is only separately reportable when it describes a medically reasonable, necessary, and distinct service at the same or a different encounter, and a right heart catheterization code requires a complete right heart study. Fluoroscopy and ultrasound guidance during these procedures are likewise not separately reportable. For EP and device practices, this makes the procedure note — not the code list — the document that determines what gets paid.

Not sure your cath lab coding would survive an audit? Get a Free Billing Audit — we will test a sample of claims against the bundling rules above and show you the gaps.

Payer and authorization checks

Medicare’s cardiology rules — including the NCCI edit policies above — do not automatically apply to Medicaid or commercial plans. Many commercial payers use NCCI-style edits, but each publishes its own policy manual, and Medicare Advantage plans run their own prior authorization portals with their own medical necessity criteria. Prior authorization is the other front line: diagnostic catheterization, percutaneous intervention, electrophysiology studies, device implants, and advanced imaging (CT angiography, cardiac MRI, nuclear studies) routinely require it, and requirements vary by payer and even by plan. We verify authorization before scheduled procedures, submit the clinical documentation each payer asks for — symptoms, prior testing, risk factors — and track the request to a written determination. We also track authorization expirations so a delayed case does not become an uncovered one.

Workflow and reporting

Cardiology revenue lives in the procedure note, so our workflow starts there. We reconcile scheduled procedures against completed notes, code from the full documentation (indications, access site, vessels studied, interventions performed, devices placed), scrub claims against payer-specific edit sets, submit daily, post payments, and work denials through our structured denial management process.

Reporting makes the pattern visible. Illustrative examples of what our reports show: a weekly denial snapshot grouped by root cause (bundling edits, missing authorization, medical necessity, coding), days in AR by payer, and a clean-claim rate trend for your cath lab and imaging lines. These are illustrative examples, not guarantees — results depend on payer mix, documentation quality, and case mix. But you will always see where revenue stands and what we are doing about it.

Onboarding and pricing factors

Onboarding starts with the free billing audit — a real review of recent claims, not a sales call. Implementation then covers payer enrollment verification, clearinghouse and EHR connections, cath lab charge-capture mapping, and a coding review of your highest-volume procedures. Factors that shape a quote: monthly procedure and claim volume, office versus procedural mix, number of physicians and APPs, payer mix (including Medicare Advantage penetration), and whether you need full revenue cycle or billing only.

We do not publish one-size-fits-all rates because they would be meaningless at this complexity. Your proposal will specify the pricing model, minimum fees, and turnaround for implementation, along with the credentials of the team assigned to your account. We serve practices in all 50 states — call +1 (307) 396-4107 or email contact@medicalbillingservicesgroup.com, or review transparent pricing details.

FAQs and dated sources

Do you code cardiac catheterizations and interventions?
Yes. We code from the complete procedure note and apply procedure-to-procedure bundling rules — so diagnostic catheterization is reported separately only when it meets the criteria for a distinct, medically necessary service, and component services are not unbundled.

How do you handle prior authorizations for cath and PCI?
We verify authorization requirements before the procedure is scheduled, submit the clinical documentation each payer requires, and follow the request to a written determination. We also track expirations for cases that get delayed.

What drives most cardiology denials?
The patterns we see most: bundling-edit denials from unbundled components, missing or expired prior authorizations, and medical necessity documentation that does not support the procedure performed. Our independent billing audit shows which pattern dominates your claims.

Do Medicare NCCI rules apply to our commercial contracts?
Not automatically. Many commercial payers adopt NCCI-style edits, but each payer publishes its own policies and edit versions. We check the rules for each payer on your panel instead of assuming Medicare’s manual governs everywhere.

How do we start working with MBSG?
Start with a free billing audit — we review recent claims across your office, imaging, and procedural lines. Or contact our team directly to talk through your volume and payer mix.

Medical Billing Services Group — Medical Billing & Revenue Cycle Management. If cardiology billing complexity is costing you procedures’ worth of revenue, start with a Free Billing Audit and see exactly where your claims stand.

General educational information, not legal advice or a guarantee of reimbursement. Requirements vary by payer, plan, setting and date of service.

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