CPT code 93227: Holter interpretation, under 48 hours2026 Medicare rate & RVUs in Guam
Reports a physician’s interpretation of ambulatory ECG data from a recording under 48 hours, commonly used to evaluate intermittent rhythm symptoms.
Medicare pays $18.20 for 93227 in the office in Guam (Hawaii, Guam, HI). 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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What 93227 covers
A physician reviews and interprets ambulatory electrocardiographic data collected during a short-term Holter recording, then documents the findings in a report. The test may be ordered for symptoms such as palpitations, dizziness, or suspected intermittent arrhythmia when a continuous ECG recording can help assess cardiac rhythm over the monitoring period. Cardiologists and other qualified practitioners who interpret ECG studies typically perform this professional service.
Report 93227 for the interpretation and report portion of the under-48-hour study, not for the recording or computerized scanning and analysis work. The record should support the monitoring period, the physician’s review of the tracing, relevant rhythm findings, and the resulting interpretation. CMS identifies 93227 as a professional-component-only code; the technical work is represented separately, including recording with 93225 and scanning analysis with 93226. Code 93224 represents the complete service when its components are reported together.
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.
93227 in Hawaii, Guam, HI
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam, HI | $18.20 | $18.20 |
How the 93227 rate is calculated
Each of 93227’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 · 93227
RVUs × geographic indexes × conversion factor
Work0.38
0.38 RVUs× 1.000 GPCI
Practice expense0.14
0.14 RVUs× 1.000 GPCI
Malpractice0.01
0.01 RVUs× 1.000 GPCI
Adjusted RVUs
0.5300
Conversion factor
$33.4009
Medicare rate
$17.70
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93227
The CMS indicators that decide how 93227 is paid alongside other services.
CMS payment indicators · 93227
Holter interpretation, under 48 hours
| 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. |
93227 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93224Holter monitoringUp to 48 hours
- 93224 represents the complete under-48-hour service, while 93227 reports only physician interpretation and the report.
- 93226Holter analysisLess than 48 hours
- 93226 covers scanning analysis of the recorded data. 93227 is the physician’s interpretation and report.
- 93244Extended ECGReview and interpretation
- 93244 applies to interpretation of an extended recording lasting more than 48 hours and up to seven days; 93227 is for the shorter service.
- 93272Event monitorInterpretation only
- 93272 is the interpretation code for a remote event-monitor service. 93227 applies to interpretation of a short-term Holter recording.
93227 billing questions
How does 93227 differ from 93224?
93227 covers only the physician’s interpretation and report. 93224 represents the complete under-48-hour service, including the technical work.
Should modifier 26 be appended to 93227?
No. 93227 is already designated as a professional-component-only code for interpretation and reporting.
Which codes represent the technical work?
93225 represents recording, and 93226 represents scanning analysis. These technical services are distinct from the interpretation reported with 93227.
When is 93244 a better fit?
Use 93244 for the interpretation and report of an extended ECG recording lasting more than 48 hours and up to seven days. 93227 is for the shorter monitoring service.
Is 93227 appropriate for a 30-day event monitor?
No. A 30-day event-monitor service uses a different code family, including 93272 for review and interpretation, rather than the short-term Holter interpretation code.
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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