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CMS RVU26D · Effective 2026-10-01

G9157 Cardiac monitoring Medicare reimbursement rates in Iowa

Reports the physician’s interpretation of transesophageal Doppler cardiac monitoring used to assess hemodynamic flow during a monitored clinical episode. Compare G9157 office and facility rates across CMS payment localities in Iowa.

Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.

What does Medicare pay for G9157 in Iowa?

Iowa has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.

Office / nonfacility

No supported rate

Facility setting

$83.98

1 of 1 localities have a supported rate.

Payment area: Iowa

One mapped payment locality.

These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.

Find G9157 in your payment locality →

Cardiology

About G9157: Transesophageal Doppler cardiac monitoring interpretation

Reports the physician’s interpretation of transesophageal Doppler cardiac monitoring used to assess hemodynamic flow during a monitored clinical episode.

Transesophageal Doppler monitoring uses an esophageal probe to obtain blood-flow information that helps assess cardiac output and hemodynamic response. G9157 represents the physician’s interpretation and report, rather than probe placement or the technical work of acquiring the monitoring data. It may be performed in settings such as an operating room or intensive care unit when clinicians are monitoring a patient’s hemodynamics. The interpreting professional reviews the acquired data and documents the findings in a report.

Report G9157 for the professional interpretation and report when this monitoring service is performed. The record should identify the monitoring service and include the interpretation and resulting report. CMS identifies G9157 as professional-component-only; the technical portion is covered by a separate code. Do not treat G9157 as the complete technical and professional service or report it as a diagnostic TEE solely because an esophageal probe is used. Distinguish hemodynamic monitoring from an examination performed to evaluate cardiac structures or function.

CMS billing rules for G9157

Professional and technical components
Professional-component-only code: interpretation and report; a separate code covers the technical portion.

Where the value comes from

  • Work RVU2.15 · 81%
  • Practice expense (office) RVU0.32 · 12%
  • Malpractice RVU0.18 · 7%

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.

G9157 compared with similar codes

Office rates for Iowa, from the same CMS release.

93318

Echo transesophageal intraop

No office rate

93318 describes TEE performed for monitoring. G9157 specifically represents the professional interpretation and report for transesophageal Doppler cardiac monitoring.

93312

Transesophageal echo

Complete service

$223.76

93312 is for diagnostic TEE, not hemodynamic monitoring. Choose based on the service’s purpose and the work performed.

Compare G9157 by payment locality

Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.

1 of 1 payment localities

Office and facility base rates · shared scale starting at $0
  • Iowa →

    Office / nonfacility

    Unavailable

    Facility

    $83.98

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How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for G9157 in Iowa.

PPRRVU2026_Oct_nonQPP.csv

15,858

Code
G9157
Physician work
2.15
Practice expense
0.32
Malpractice
0.18

GPCI2026.csv

53

Locality
Iowa
Physician work
1.000
Practice expense
0.915
Malpractice
0.397
Facility calculation for G9157 in Iowa
ComponentRVULocality factorAdjusted
Physician work2.15× 1.0002.1500
Practice expense0.32× 0.9150.2928
Malpractice0.18× 0.3970.0715
Total RVUs2.5143
Conversion factor× 33.4009

Facility rate, Iowa$83.98

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.
Explore RVUs, geographic factors and the full formula

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work2.151
Practice expense0.320.915
Malpractice0.180.397

(2.15 × 1 + 0.32 × 0.915 + 0.18 × 0.397) × $33.4009 = $83.98

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

G9157 billing questions

Does G9157 include probe placement and data acquisition?

No. G9157 represents the professional interpretation and report; a separate code covers the technical portion.

Is G9157 for diagnostic transesophageal echocardiography?

It describes interpretation of transesophageal Doppler cardiac monitoring. A diagnostic TEE is selected when the service evaluates cardiac structures or function rather than monitoring hemodynamic flow.

Should modifier 26 be appended?

G9157 is identified as a professional-component-only code, so it already represents the interpretation and report rather than the global service.

What documentation supports reporting G9157?

Document the monitoring service, the physician’s interpretation of the acquired data, and the resulting report.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.

Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.

RVUs for G9157PPRRVU2026_Oct_nonQPP.csv, line 15,858 (RVU26D)
Geographic factors for IowaGPCI2026.csv, line 53 (RVU26D)