CPT code 93318: Intraoperative TEE, monitoring purpose2026 Medicare rate & RVUs in Missouri
Reports transesophageal echocardiography for ongoing intraoperative cardiac assessment, rather than a diagnostic TEE study or TEE guidance for a transcatheter intervention.
CMS doesn’t publish an office rate for 93318 in Missouri.
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 93318 covers
93318 describes TEE performed for ongoing cardiac assessment during an operation. An ultrasound probe in the esophagus provides real-time cardiac images. The service includes probe placement, image acquisition, and interpretation. It is reported for intraoperative monitoring in a facility setting, rather than for a diagnostic TEE study or TEE guidance of a transcatheter structural intervention. The interpreting physician reports the professional work; the technical component represents the equipment and staff.
Medicare assigns 93318 physician fee schedule status C, or carrier priced. The Medicare Administrative Contractor sets payment for each claim, and CMS publishes no national payment. The service may be reported globally without a modifier, or with modifier 26 for the professional interpretation and modifier TC for the technical component. The cardiovascular diagnostic multiple procedure reduction applies 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 93318 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.
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Kansas City, MO | Unavailable | Unavailable |
| Metropolitan St. Louis, MO | Unavailable | Unavailable |
| Rest of Missouri | Unavailable | Unavailable |
How the 93318 rate is calculated
Each of 93318’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 · 93318
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93318
The CMS indicators that decide how 93318 is paid alongside other services.
CMS payment indicators · 93318
Intraoperative TEE, monitoring purpose
| 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
93318 without 26 · national facility
$0.00
Intraoperative TEE, monitoring purpose
93318-26 · Professional component
$101.87
Pays only the interpretation and report.
93318 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93312Transesophageal echoComplete service
- 93312 is a diagnostic TEE examination. 93318 is selected for ongoing intraoperative monitoring.
- 93313TEE probe placementProbe placement only
- 93313 reports probe placement alone in the diagnostic TEE code family. 93318 describes intraoperative monitoring, including placement, image acquisition, and interpretation.
- 93314TEEWithout probe placement
- 93314 reports image acquisition and interpretation in the diagnostic TEE code family. 93318 is selected for ongoing intraoperative monitoring.
- 93355TEE guidanceTranscatheter structural intervention
- 93355 is TEE guidance for a transcatheter structural intervention. 93318 is for intraoperative monitoring, not that specific guidance service.
93318 billing questions
When should 93318 be used instead of 93312?
Use 93318 for ongoing TEE monitoring during an operation. Code 93312 is for a diagnostic TEE examination.
Does 93318 include probe placement and image interpretation?
Yes. The service includes probe placement, real-time image acquisition, and interpretation.
How are modifiers 26 and TC used?
Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical component. Report the global service without a modifier.
How does Medicare price 93318?
Its physician fee schedule status is C, or carrier priced. The Medicare Administrative Contractor sets payment for each claim; CMS publishes no national payment.
Does the multiple procedure reduction affect 93318?
The cardiovascular diagnostic multiple procedure reduction applies to the technical component.
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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