CPT code 93224: Holter monitoring, up to 48 hours2026 Medicare rate & RVUs in Missouri
Reports a continuous ambulatory ECG study lasting up to 48 hours, including recording, analysis, and physician review for suspected intermittent rhythm problems.
Medicare pays $62.61–$67.75 for 93224 in the office in Missouri, from Rest of Missouri to Metropolitan St. Louis, MO. 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.
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On this page 9 sections
What 93224 covers
A portable monitor records the patient's heart rhythm continuously for up to 48 hours while the patient goes about usual activities. The service is commonly ordered for intermittent palpitations, dizziness, or syncope when a brief office ECG may not capture the suspected rhythm abnormality. A technician handles the recording and analysis, and a qualified physician reviews the tracing and reports the findings. The test is commonly arranged through a cardiology practice or an outpatient diagnostic service.
Report 93224 when the complete service is furnished: recording, scanning analysis, and physician review and interpretation. If those parts are furnished and billed separately, codes 93225, 93226, and 93227 describe the recording, analysis, and physician interpretation, respectively. Documentation should support the monitoring period, the completed analysis, and the physician's interpretation. CMS applies the cardiovascular diagnostic multiple procedure reduction to the technical component when multiple applicable tests are billed; the reduction affects the technical portion, not the professional interpretation.
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 93224 pays more and less in Missouri
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$62.61 to $67.75
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | $66.99 | Unavailable |
| Metropolitan St. Louis, MO | $67.75 | Unavailable |
| Rest of Missouri | $62.61 | Unavailable |
How the 93224 rate is calculated
Each of 93224’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 · 93224
RVUs × geographic indexes × conversion factor
Work0.38
0.38 RVUs× 1.000 GPCI
Practice expense1.70
1.70 RVUs× 1.000 GPCI
Malpractice0.03
0.03 RVUs× 1.000 GPCI
Adjusted RVUs
2.1100
Conversion factor
$33.4009
Medicare rate
$70.48
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93224
The CMS indicators that decide how 93224 is paid alongside other services.
CMS payment indicators · 93224
Holter monitoring, up to 48 hours
| 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 | 4 | Global test only. |
93224 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93225ECG recordingRecording only, up to 48 hours
- 93225 describes the recording portion alone when services are split. 93224 represents the complete study, including analysis and physician interpretation.
- 93227Holter interpretationUnder 48 hours
- 93227 is the physician review and interpretation portion when separately billed; it does not include the complete recording and analysis service represented by 93224.
- 93241Ambulatory ECGMore than 48 hours to 7 days
- 93241 is the complete continuous ECG service for monitoring beyond 48 hours and up to 7 days. Use 93224 for monitoring up to 48 hours.
- 93268ECG monitoringUp to 30 days
- 93268 belongs to an ECG event-monitoring service, rather than the continuous ambulatory recording covered by 93224.
93224 billing questions
When should 93224 be used instead of 93225, 93226, or 93227?
Use 93224 when the complete study is furnished and billed together. Use 93225, 93226, and 93227 when the recording, analysis, and physician interpretation are billed as separate services.
Can 93224 be billed with its component codes for the same study?
Do not report 93224 together with 93225, 93226, or 93227 for the same work; those codes describe the portions separately when the service is split.
What documentation supports 93224?
Keep the monitoring dates or duration, evidence that recording and scanning analysis were completed, and the physician's interpretation and report.
How does the multiple procedure reduction affect 93224?
CMS applies the cardiovascular diagnostic multiple procedure reduction to the technical component when multiple applicable tests are billed. The professional interpretation is not the component affected by this reduction.
When is a longer-duration ECG code more appropriate?
For continuous monitoring beyond 48 hours and up to 7 days, consider the longer-duration code family, including 93241 for the complete service.
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
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