Billing code 93025: T-wave alternansMedicare rate & RVUs in Iowa
Reports specialized ECG analysis of microvolt-level T-wave alternation to assess ventricular arrhythmia risk, often using a controlled exercise protocol.
Medicare pays $125.77 for 93025 in the office in Iowa (Iowa). Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 93025 covers
This specialized ECG test detects tiny beat-to-beat changes in the T wave that can help assess risk for ventricular arrhythmias. It is commonly performed in cardiology or electrophysiology settings with high-resolution ECG equipment and analysis software, often while the patient exercises under a controlled protocol. The service includes analysis and a clinical interpretation rather than routine ECG tracing alone.
Report the test when microvolt T-wave alternans analysis is performed for ventricular arrhythmia risk assessment. Documentation should support the clinical indication, testing method, data obtained, and interpretation, including the result and any limitations affecting interpretation. The service may be billed globally when one entity provides both portions, or split with modifier 26 for interpretation and modifier TC for equipment and staff. CMS applies the cardiovascular diagnostic multiple procedure reduction to the technical component.
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.
93025 in Iowa
| Payment locality | Office | Facility |
|---|---|---|
| Iowa | $125.77 | Unavailable |
How the 93025 rate is calculated
Each of 93025’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.
How the rate is built · 93025
RVUs × geographic indexes × conversion factor
Work0.73
0.73 RVUs× 1.000 GPCI
Practice expense3.30
3.30 RVUs× 1.000 GPCI
Malpractice0.04
0.04 RVUs× 1.000 GPCI
Adjusted RVUs
4.0700
Conversion factor
$33.4009
Medicare rate
$135.94
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93025
The CMS indicators that decide how 93025 is paid alongside other services.
CMS payment indicators · 93025
T-wave alternans
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 6 | Diagnostic cardiovascular reduction applies to the technical component. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
93025 without 26 · national office
$135.94
T-wave alternans
93025-26 · Professional component
$37.41
Pays only the interpretation and report.
93025 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 93000Electrocardiogram (ECG)
- 93000 covers a conventional ECG with tracing and interpretation. Use 93025 for specialized microvolt T-wave alternans analysis directed at ventricular arrhythmia risk.
- 93015Cardiac stress test
- 93015 reports a cardiovascular exercise stress test with supervision, interpretation, and report. Exercise may be part of T-wave alternans testing, but the services address different analyses.
- 93024Ergonovine test
- 93024 concerns an ergonovine provocation test. It evaluates a different cardiac question and is not a T-wave alternans risk assessment.
93025 billing questions
How does this differ from a standard ECG?
This test analyzes subtle beat-to-beat T-wave changes for ventricular arrhythmia risk. A standard ECG records and interprets conventional cardiac electrical activity.
Can the professional and technical portions be billed separately?
Yes. Modifier 26 identifies the interpretation, and modifier TC identifies the technical portion; billing without either modifier represents the global service.
Which portion is subject to the multiple procedure reduction?
CMS applies the cardiovascular diagnostic multiple procedure reduction to the technical component.
What should the record include?
Document the reason for arrhythmia risk assessment, the testing method, the data and result, and the interpreting clinician's assessment.
Is this the same service as an exercise stress test?
No. Exercise may be used to obtain the T-wave alternans data, while a stress test evaluates the cardiovascular response to exercise. Report a separate stress-test service only when that distinct service is performed and documented.
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
Show the CMS file lines behind this rate
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