CPT code 93228: ECG interpretation, remote monitoring, up to 30 days2026 Medicare rate & RVUs in California
Professional interpretation and reporting for remote external ECG monitoring lasting more than 24 hours and up to 30 days, typically used to evaluate intermittent cardiac symptoms.
Medicare pays $25.65–$30.00 for 93228 in the office in California, from Chico, CA to San Benito County, CA. 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 93228 covers
This service covers a physician’s or other qualified health care professional’s review and interpretation of ECG information from remote external monitoring lasting more than 24 hours and up to 30 days, with a report. It is commonly used to evaluate intermittent symptoms such as palpitations or syncope when a standard office ECG may not capture an episode. Cardiologists and other clinicians experienced in ECG interpretation typically provide the professional service for outpatient monitoring.
Select the code for the professional interpretation and report, not for device connection, recording, or technical analysis. The record should support the monitoring period, the ECG information reviewed, the interpretation, and the resulting report. CMS treats 93228 as a professional-component-only code; the technical portion is separately represented by 93229. The professional service is not a substitute for the technical service when both were furnished.
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 93228 pays more and less in California
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
29 payment localities
$25.65 to $30.00
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield, CA | $25.76 | $25.76 |
| Chico, CA | $25.65 | $25.65 |
| El Centro, CA | $25.66 | $25.66 |
| Fresno, CA | $25.65 | $25.65 |
| Hanford, CA | $25.65 | $25.65 |
| Los Angeles, CA | $26.89 | $26.89 |
| Madera, CA | $25.65 | $25.65 |
| Marin County, CA | $29.42 | $29.42 |
| Merced, CA | $25.65 | $25.65 |
| Modesto, CA | $25.65 | $25.65 |
| Napa, CA | $28.20 | $28.20 |
| Oxnard, CA | $26.63 | $26.63 |
| Redding, CA | $25.65 | $25.65 |
| Rest of California | $25.65 | $25.65 |
| Riverside, CA | $25.99 | $25.99 |
| Sacramento, CA | $26.51 | $26.51 |
| Salinas, CA | $26.40 | $26.40 |
| San Benito County, CA | $30.00 | $30.00 |
| San Diego, CA | $26.70 | $26.70 |
| San Francisco, CA | $29.39 | $29.39 |
| San Luis Obispo, CA | $26.01 | $26.01 |
| Santa Clara County, CA | $29.86 | $29.86 |
| Santa Cruz, CA | $26.71 | $26.71 |
| Santa Maria, CA | $26.41 | $26.41 |
| Santa Rosa, CA | $26.96 | $26.96 |
| Stockton, CA | $25.65 | $25.65 |
| Vallejo, CA | $28.15 | $28.15 |
| Visalia, CA | $25.65 | $25.65 |
| Yuba City, CA | $25.65 | $25.65 |
How the 93228 rate is calculated
Each of 93228’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 · 93228
RVUs × geographic indexes × conversion factor
Work0.47
0.47 RVUs× 1.000 GPCI
Practice expense0.25
0.25 RVUs× 1.000 GPCI
Malpractice0.03
0.03 RVUs× 1.000 GPCI
Adjusted RVUs
0.7500
Conversion factor
$33.4009
Medicare rate
$25.05
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93228
The CMS indicators that decide how 93228 is paid alongside other services.
CMS payment indicators · 93228
ECG interpretation, remote monitoring, up to 30 days
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| 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 | 2 | Professional component only. |
93228 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93229Remote ECG monitoring30-day technical service
- 93229 covers the technical portion of remote extended ECG monitoring, while 93228 covers professional interpretation and reporting. They may be reported together when both services are furnished.
- 93272Event monitorInterpretation only
- 93272 is the professional interpretation code for an external event-monitor service. Choose 93228 for the professional service associated with remote extended ECG monitoring.
- 93224Holter monitoringUp to 48 hours
- 93224 describes Holter monitoring for up to 48 hours. Code 93228 is for professional interpretation associated with remote monitoring lasting more than 24 hours and up to 30 days.
- 93244Extended ECGReview and interpretation
- 93244 covers professional interpretation for external ECG monitoring lasting more than 48 hours and up to 7 days. Code 93228 applies to remote monitoring with a longer period, up to 30 days.
93228 billing questions
When should 93228 be chosen instead of 93272?
Use 93228 for professional review and reporting associated with remote extended ECG monitoring. Code 93272 is associated with physician review and interpretation for an external event-monitor service.
Can 93228 and 93229 be reported for the same monitoring episode?
Yes, when the professional interpretation and the technical service are both furnished. Code 93228 represents the interpretation and report; 93229 represents the technical portion.
Does 93228 include device connection or ECG recording?
No. It covers the professional interpretation and report. The technical portion is reported separately with 93229 when furnished.
Is 93228 reported for each transmission or tracing?
The code represents the professional interpretation and report for remote monitoring, not a separate charge for each transmission or tracing.
What documentation supports reporting 93228?
Document the remote monitoring period, the ECG data reviewed, the clinician’s interpretation, and the report. The record should make clear that the professional service was 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.
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