CPT code 93893: Transcranial Doppler, venous-arterial shunt detection2026 Medicare rate & RVUs in Utah

Transcranial Doppler monitoring used to assess intracranial venous-to-arterial shunting, reported when the documented service is shunt detection rather than routine flow assessment.

CMS RVU26DEffective Oct 1, 2026One payment locality2.2K Medicare services in 2024

CMS doesn’t publish a rate for 93893 in Utah.

Additional calculation requiredOffice (non-facility)
Not available in this settingHospital or facility
$365.74vs the national office rate ($365.74)

Check a contract rate as a % of Medicare · 93893 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 93893 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Utah
  2. What 93893 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 93893 covers

93893 represents a transcranial Doppler examination directed at detecting a venous-to-arterial shunt by monitoring intracranial arterial signals. Clinicians may request it when evaluating a suspected right-to-left shunt, including during assessment of otherwise unexplained cerebral ischemia. A vascular laboratory sonographer typically acquires the Doppler data, and a qualified physician interprets the findings in an outpatient or hospital setting. The report should identify the clinical question, vessels monitored, technique, observed signals, and interpretation. A general complete or limited intracranial arterial assessment is a different service.

Select the code that matches the documented service and technique. Code 93898 specifically identifies venous-arterial shunt detection with microbubble injection, so do not assume that protocol from the 93893 descriptor alone. Modifier 26 identifies the professional interpretation, modifier TC identifies the technical service, and billing without a modifier represents the global service. When multiple cardiovascular diagnostic procedures are reported, the CMS 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.

How Utah compares for 93893

93893 in Utah vs other payment areas
  1. Utah · this pageUnavailable
  2. Los Angeles, CA · CaliforniaUnavailable
  3. Washington, DC area · District of ColumbiaUnavailable
  4. Miami, FL · FloridaUnavailable
  5. Chicago, IL · IllinoisUnavailable
  6. Manhattan, NY · New YorkUnavailable
  7. Alaska · AlaskaUnavailable

Other areas in Utah first, then benchmark localities. Bars start at $0.

Every other payment area

93893 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama——
ArkansasArkansas——
ArizonaArizona——
Bakersfield, CACalifornia——
Chico, CACalifornia——
El Centro, CACalifornia——
Fresno, CACalifornia——
Hanford, CACalifornia——

93893 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

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93893 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

See 93893 in every payment locality

How the 93893 rate is calculated

Each of 93893’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 · 93893

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.12

1.12 RVUs× 1.000 GPCI

Practice expense9.73

9.73 RVUs× 1.000 GPCI

Malpractice0.10

0.10 RVUs× 1.000 GPCI

Adjusted RVUs

10.9500

Conversion factor

$33.4009

Medicare rate

$365.74

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 93893

The CMS indicators that decide how 93893 is paid alongside other services.

CMS payment indicators · 93893

Transcranial Doppler, venous-arterial shunt detection

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures6Diagnostic cardiovascular reduction applies to the technical component.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

93893 without 26 · national office

$365.74

Transcranial Doppler, venous-arterial shunt detection

93893-26 · Professional component

$59.45

Pays only the interpretation and report.

When to use modifier 26

How 93893 has changed in Utah

93893 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Additional calculation requiredNot available in this settingRVU26D
2026-07-01Additional calculation requiredNot available in this settingRVU26C
2026-04-01Additional calculation requiredNot available in this settingRVU26B
2026-01-01Additional calculation requiredNot available in this settingRVU26A
2025-10-01Additional calculation requiredNot available in this settingRVU25D
2025-07-01Additional calculation requiredNot available in this settingRVU25C
2025-04-01Additional calculation requiredNot available in this settingRVU25B
2025-01-01Additional calculation requiredNot available in this settingRVU25A
2024-10-01Additional calculation requiredNot available in this settingRVU24D
2024-07-01Additional calculation requiredNot available in this settingRVU24C
2024-04-01Additional calculation requiredNot available in this settingRVU24B
2024-03-09Additional calculation requiredNot available in this settingRVU24AR
2024-01-01Additional calculation requiredNot available in this settingRVU24A
2023-10-01Additional calculation requiredNot available in this settingRVU23D
2023-07-01Additional calculation requiredNot available in this settingRVU23C
2023-04-01Additional calculation requiredNot available in this settingRVU23B
2023-01-01Additional calculation requiredNot available in this settingRVU23A
2022-10-01Additional calculation requiredNot available in this settingRVU22D
2022-07-01Additional calculation requiredNot available in this settingRVU22C
2022-04-01Additional calculation requiredNot available in this settingRVU22B
2022-01-01Additional calculation requiredNot available in this settingRVU22A
2021-10-01Additional calculation requiredNot available in this settingRVU21D
2021-07-01Additional calculation requiredNot available in this settingRVU21C
2021-04-01Additional calculation requiredNot available in this settingRVU21B
2021-01-01Additional calculation requiredNot available in this settingRVU21A
2020-10-01Additional calculation requiredNot available in this settingRVU20D
2020-07-01Additional calculation requiredNot available in this settingRVU20C
2020-04-01Additional calculation requiredNot available in this settingRVU20B
2020-01-01Additional calculation requiredNot available in this settingRVU20A
2019-10-01Additional calculation requiredNot available in this settingRVU19D
2019-07-01Additional calculation requiredNot available in this settingRVU19C
2019-04-01Additional calculation requiredNot available in this settingRVU19B
2019-01-01Additional calculation requiredNot available in this settingRVU19A
2018-10-01Additional calculation requiredNot available in this settingRVU18D
2018-07-01Additional calculation requiredNot available in this settingRVU18C
2018-04-01Additional calculation requiredNot available in this settingRVU18B
2018-01-01Additional calculation requiredNot available in this settingRVU18AR1
2017-10-01Additional calculation requiredNot available in this settingRVU17D
2017-07-01Additional calculation requiredNot available in this settingRVU17C
2017-04-01Additional calculation requiredNot available in this settingRVU17B
2017-01-01Additional calculation requiredNot available in this settingRVU17A
2016-10-01Additional calculation requiredNot available in this settingRVU16D
2016-07-01Additional calculation requiredNot available in this settingRVU16C
2016-04-01Additional calculation requiredNot available in this settingRVU16B
2016-01-01Additional calculation requiredNot available in this settingRVU16A
2015-10-01Additional calculation requiredNot available in this settingRVU15D
2015-07-01Additional calculation requiredNot available in this settingRVU15C
2015-04-01Additional calculation requiredNot available in this settingRVU15B
2015-01-01Additional calculation requiredNot available in this settingRVU15A
2014-10-01Additional calculation requiredNot available in this settingRVU14D
2014-07-01Additional calculation requiredNot available in this settingRVU14C
2014-04-01Additional calculation requiredNot available in this settingRVU14B
2014-01-01Additional calculation requiredNot available in this settingRVU14A
2013-10-01Additional calculation requiredNot available in this settingRVU13D
2013-07-01Additional calculation requiredNot available in this settingRVU13C
2013-04-01Additional calculation requiredNot available in this settingRVU13B
2013-01-01Additional calculation requiredNot available in this settingRVU13AR

Price 93893 for an earlier date of service

Where the Utah rate applies

Utah is a Medicare payment area, not a city. Our Census mapping connects it to 334 cities and communities in Utah. Some span more than one payment area; confirm with the service ZIP.

  • Alpine
  • Alta
  • Altamont
  • Alton
  • Amalga
  • American Fork
  • Aneth
  • Annabella

Browse all communities in Utah

93893 billing questions

How is 93893 different from 93892?

93893 is for venous-arterial shunt detection. Code 93892 is for intracranial emboli detection without injection.

Does 93893 specifically include microbubble injection?

The 93893 descriptor identifies shunt detection but does not specify microbubble injection. Code 93898 specifically identifies shunt detection with microbubble injection; match the code to the documented service.

How should the professional and technical work be billed?

Use modifier 26 for the professional interpretation, TC for the technical service, or neither modifier for the global service.

Which part of 93893 is subject to the multiple-procedure reduction?

The cardiovascular diagnostic multiple-procedure reduction applies to the technical component.

What documentation supports reporting 93893?

Document the shunt-detection indication, vessels monitored, technique, observed signals, and interpretation.

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

Open CMS sourceHow we calculate rates

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