Billing code 93024: Ergonovine testMedicare rate & RVUs

Medicare pays $114.90 for 93024 nationally in the office. Local office rates run $103.26–$150.92.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 93024 covers

A cardiologist or other qualified physician uses ergonovine under monitored conditions to provoke coronary vasoconstriction when coronary artery spasm is suspected. The test is commonly performed in a hospital catheterization lab, often alongside coronary angiography, so the clinical response can be assessed in the context of the patient’s symptoms and cardiac findings. It is a medication-provocation service, not an exercise stress test or a resting ECG.

Report the service when the record supports an ergonovine challenge, its clinical indication, monitoring, and the physician’s interpretation and report. CMS recognizes professional and technical components: report modifier 26 for the interpretation, modifier TC for equipment and staff, or neither modifier for the global service. When multiple cardiovascular diagnostic procedures are performed, the multiple procedure reduction applies to the technical component. The documentation should identify the test performed and its findings; routine monitoring used to conduct the challenge should not be mistaken for a separate ECG service.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 93024 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

93024 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 93024 rate is calculated

Each of 93024’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 93024

The CMS indicators that decide how 93024 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

93024 compared with similar codes

How to choose

93015Cardiac stress test

93015 is an exercise-based cardiovascular stress test. Choose 93024 when the service uses ergonovine to provoke suspected coronary spasm.

93000Electrocardiogram (ECG)

93000 represents a complete resting ECG service. It does not describe an ergonovine challenge for coronary artery spasm.

93005ECG tracing

93005 is a tracing-only ECG service, not the ergonovine provocation test. Do not substitute it for 93024 based solely on ECG monitoring during the challenge.

Codes related to 93024

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates