CPT code 93308: Echocardiogram, follow-up or limited study2026 Medicare rate & RVUs in Louisiana
Reports a focused or follow-up transthoracic echocardiogram when the clinical question calls for a limited assessment rather than a complete examination.
Medicare pays $91.66–$96.52 for 93308 in the office in Louisiana, from Rest of Louisiana to New Orleans, LA. 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 93308 covers
This service is a focused ultrasound examination of the heart through the chest, using two-dimensional imaging and M-mode when performed. A sonographer typically acquires the images in an office, hospital, or outpatient imaging department, and a qualified physician interprets the study. Common reasons include reassessing a known pericardial effusion or checking ventricular function after a prior study when only a specific question needs evaluation.
Choose this code when the documented examination is limited or performed as follow-up, rather than a complete transthoracic study. The record should support the clinical question, the focused scope of the examination, and the interpretation of the images. Doppler services, when performed and reported, use the applicable Doppler codes. The service may be billed globally, or split into the professional interpretation with modifier 26 and the equipment-and-staff technical component with modifier TC. 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.
Where 93308 pays more and less in Louisiana
| Payment locality | Office | Facility |
|---|---|---|
| New Orleans, LA | $96.52 | Unavailable |
| Rest of Louisiana | $91.66 | Unavailable |
How the 93308 rate is calculated
Each of 93308’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 · 93308
RVUs × geographic indexes × conversion factor
Work0.52
0.52 RVUs× 1.000 GPCI
Practice expense2.47
2.47 RVUs× 1.000 GPCI
Malpractice0.04
0.04 RVUs× 1.000 GPCI
Adjusted RVUs
3.0300
Conversion factor
$33.4009
Medicare rate
$101.20
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93308
The CMS indicators that decide how 93308 is paid alongside other services.
CMS payment indicators · 93308
Echocardiogram, follow-up or limited study
| 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
93308 without 26 · national office
$101.20
Echocardiogram, follow-up or limited study
93308-26 · Professional component
$24.72
Pays only the interpretation and report.
93308 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 93307Transthoracic echoComplete, without Doppler
- 93307 represents a complete transthoracic examination without Doppler. Choose 93308 when the study is limited or a follow-up focused on a specific question.
- 93306Echocardiogram (TTE)Complete, with spectral and color Doppler
- 93306 represents a complete transthoracic examination with Doppler and color flow imaging. 93308 describes a limited or follow-up study, with Doppler services represented separately when performed.
- 93304Transthoracic echoCongenital, limited or follow-up
- 93304 is the limited or follow-up transthoracic study for congenital cardiac disease; 93308 is used for the corresponding non-congenital study.
93308 billing questions
How does 93308 differ from a complete transthoracic study?
93308 is for a focused or follow-up examination addressing a limited clinical question. Use a complete-study code when the examination covers the full scope of a complete transthoracic study.
Can Doppler services be reported with 93308?
Yes, when Doppler assessment is performed and documented, report the applicable Doppler code, such as 93321 for a limited or follow-up Doppler study. Color flow mapping may be reported with 93325 when performed.
When should modifier 26 or TC be used?
Use modifier 26 for the physician's interpretation and modifier TC for the technical service, including equipment and staff. Without either modifier, the claim represents the global service.
What documentation supports choosing 93308?
Document the reason for the focused or follow-up examination, the specific cardiac question assessed, the images and findings, and the interpreting physician's conclusion.
Which part of the service is subject to the cardiovascular multiple procedure reduction?
CMS applies the cardiovascular diagnostic multiple procedure reduction to the technical component of 93308.
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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