CPT code 93306: Echocardiogram (TTE), complete, with spectral and color Doppler2026 Medicare rate & RVUs in South Carolina

Report a complete chest-wall echocardiogram with spectral and color Doppler when a full evaluation of cardiac structure and function is performed.

CMS RVU26DEffective Oct 1, 2026One payment locality6.8M Medicare services in 2024

In South Carolina, Medicare pays $185.19 for 93306 in the office.

$185.19Office (non-facility)
Not available in this settingHospital or facility
−5.9%vs the national office rate ($196.73)

Check a contract rate as a % of Medicare · 93306 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 93306 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in South Carolina
  2. What 93306 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 93306 covers

A sonographer obtains chest-wall images of the cardiac chambers, valves, pericardium, and proximal great vessels, using spectral Doppler and color flow mapping to assess blood flow and valve function. A cardiologist or other qualified physician interprets the images and reports findings such as chamber size, wall motion, ejection fraction, and valve function. Common reasons for the study include heart failure, a new murmur, atrial fibrillation, suspected valve disease, or syncope with suspected structural heart disease. The examination may take place in a cardiology office, hospital echo lab, or at the bedside.

Report 93306 once for a complete study with spectral and color Doppler; do not add separate codes for those Doppler services. Documentation should support a complete examination, identify structures that could not be adequately visualized, and include an interpretation. Modifier TC identifies the equipment and staff portion, while modifier 26 identifies the physician interpretation; billing without either modifier represents the global service. In a hospital, the interpreting physician typically bills with modifier 26. CMS applies a cardiovascular diagnostic multiple-procedure reduction to the technical component when eligible tests are furnished to the same patient on the same date.

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 South Carolina compares for 93306

Across 109 of 109 payment localities, the office rate for 93306 runs from $174.76 in Arkansas to $265.52 in San Benito County, CA. South Carolina pays $185.19. The RVUs are the same everywhere; the geographic indexes change the dollars.

93306 in South Carolina vs other payment areas
  1. South Carolina · this page$185.19
  2. Los Angeles, CA · California$224.61+$39.42
  3. Washington, DC area · District of Columbia$225.69+$40.50
  4. Miami, FL · Florida$206.83+$21.64
  5. Chicago, IL · Illinois$201.26+$16.07
  6. Manhattan, NY · New York$225.09+$39.90
  7. Alaska · Alaska$228.78+$43.59

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

Every other payment area

93306 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$177.24—
ArkansasArkansas$174.76—
ArizonaArizona$191.80—
Bakersfield, CACalifornia$210.66—
Chico, CACalifornia$210.37—
El Centro, CACalifornia$210.39—
Fresno, CACalifornia$210.37—
Hanford, CACalifornia$210.37—

93306 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.

$174.76

$237.95

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
93306 office rate range by state
State / territoryOffice rate rangeLocalities
AK$228.781
AL$177.241
AR$174.761
AZ$191.801
CA$210.37–$265.5229
CO$206.101
CT$209.531
DC$225.691
DE$194.941
FL$191.62–$206.833
GA$181.41–$199.762
GU$215.691
HI$215.691
IA$182.661
ID$183.591
IL$185.48–$203.094
IN$184.651
KS$181.331
KY$180.231
LA$179.76–$188.442
MA$204.72–$226.832
MD$198.75–$225.693
ME$183.99–$194.432
MI$184.32–$193.432
MN$199.101
MO$176.43–$189.703
MS$175.651
MT$196.731
NC$185.941
ND$195.141
NE$183.781
NH$202.411
NJ$212.38–$223.362
NM$185.101
NV$196.431
NY$188.61–$229.775
OH$184.001
OK$180.451
OR$195.35–$213.082
PA$184.56–$204.112
PR$198.301
RI$202.181
SC$185.191
SD$194.961
TN$182.151
TX$183.34–$205.038
UT$187.661
VA$193.45–$225.692
VI$198.301
VT$193.941
WA$204.48–$231.902
WI$188.721
WV$178.671
WY$196.041

See 93306 in every payment locality

How the 93306 rate is calculated

Each of 93306’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 · 93306

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.42

1.42 RVUs× 1.000 GPCI

Practice expense4.39

4.39 RVUs× 1.000 GPCI

Malpractice0.08

0.08 RVUs× 1.000 GPCI

Adjusted RVUs

5.8900

Conversion factor

$33.4009

Medicare rate

$196.73

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

The exact South Carolina inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,046

Code
93306
Physician work
1.42
Practice expense
4.39
Malpractice
0.08

GPCI2026.csv

93

Locality
South Carolina
Physician work
1.000
Practice expense
0.924
Malpractice
0.850
Office calculation for 93306 in South Carolina
ComponentRVULocality factorAdjusted
Physician work1.42× 1.0001.4200
Practice expense4.39× 0.9244.0564
Malpractice0.08× 0.8500.0680
Total RVUs5.5444
Conversion factor× 33.4009

Office rate, South Carolina$185.19

Office: (1.42 × 1 + 4.39 × 0.924 + 0.08 × 0.85) × $33.4009 = $185.19

Open 93306 in the RVU calculator

Payment rules and modifiers for 93306

The CMS indicators that decide how 93306 is paid alongside other services.

CMS payment indicators · 93306

Echocardiogram (TTE), complete, with spectral and color Doppler

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

93306 without 26 · national office

$196.73

Echocardiogram (TTE), complete, with spectral and color Doppler

93306-26 · Professional component

$67.47

Pays only the interpretation and report.

When to use modifier 26

How 93306 has changed in South Carolina

93306 · Office / nonfacility

$185.19

Effective 2026-10-01

The base rate is $9.72 higher than on 2025-10-01, moving from $175.47 to $185.19 (5.5%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

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
  1. January 1, 2026

    RVU26A

    $175.47changed to$185.19

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.46 changed to 1.42
    • Practice expense RVU 4.28 changed to 4.39
    • Malpractice RVU 0.07 changed to 0.08
    • Practice expense GPCI 0.913 changed to 0.924
    • Malpractice GPCI 0.817 changed to 0.850

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $182.98changed to$175.47

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.35 changed to 4.28
    • Malpractice RVU 0.08 changed to 0.07

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $179.99changed to$182.98

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $184.45changed to$179.99

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.32 changed to 4.35
    • Practice expense GPCI 0.908 changed to 0.913
    • Malpractice GPCI 0.756 changed to 0.817
  5. January 1, 2023

    RVU23A

    $189.39changed to$184.45

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.39 changed to 4.32
    • Malpractice RVU 0.07 changed to 0.08
    • Practice expense GPCI 0.903 changed to 0.908
    • Malpractice GPCI 0.695 changed to 0.756

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $192.22changed to$189.39

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 4.43 changed to 4.39

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $196.14changed to$192.22

    • Conversion factor 36.0896 changed to 34.8931
    • Work RVU 1.50 changed to 1.46
    • Practice expense RVU 4.29 changed to 4.43
    • Practice expense GPCI 0.907 changed to 0.903
    • Malpractice GPCI 0.624 changed to 0.695

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $195.80changed to$196.14

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.27 changed to 4.29
    • Practice expense GPCI 0.912 changed to 0.907
    • Malpractice GPCI 0.553 changed to 0.624

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $198.87changed to$195.80

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.37 changed to 4.27

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $214.52changed to$198.87

    • Conversion factor 35.8887 changed to 35.9996
    • Work RVU 1.30 changed to 1.50
    • Practice expense RVU 5.08 changed to 4.37
    • Malpractice GPCI 0.634 changed to 0.553

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $213.56changed to$214.52

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 5.06 changed to 5.08
    • Malpractice GPCI 0.715 changed to 0.634

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $213.42changed to$213.56

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 5.04 changed to 5.06
    • Malpractice RVU 0.06 changed to 0.07

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $212.36changed to$213.42

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $212.48changed to$212.36

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 5.05 changed to 5.04
    • Malpractice RVU 0.05 changed to 0.06
    • Practice expense GPCI 0.911 changed to 0.912
    • Malpractice GPCI 0.618 changed to 0.715

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $175.63changed to$212.48

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 4.22 changed to 5.05
    • Practice expense GPCI 0.909 changed to 0.911
    • Malpractice GPCI 0.520 changed to 0.618

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $175.63

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$185.19Not available in this settingRVU26D
2026-07-01$185.19Not available in this settingRVU26C
2026-04-01$185.19Not available in this settingRVU26B
2026-01-01$185.19Not available in this settingRVU26A
2025-10-01$175.47Not available in this settingRVU25D
2025-07-01$175.47Not available in this settingRVU25C
2025-04-01$175.47Not available in this settingRVU25B
2025-01-01$175.47Not available in this settingRVU25A
2024-10-01$182.98Not available in this settingRVU24D
2024-07-01$182.98Not available in this settingRVU24C
2024-04-01$182.98Not available in this settingRVU24B
2024-03-09$182.98Not available in this settingRVU24AR
2024-01-01$179.99Not available in this settingRVU24A
2023-10-01$184.45Not available in this settingRVU23D
2023-07-01$184.45Not available in this settingRVU23C
2023-04-01$184.45Not available in this settingRVU23B
2023-01-01$184.45Not available in this settingRVU23A
2022-10-01$189.39Not available in this settingRVU22D
2022-07-01$189.39Not available in this settingRVU22C
2022-04-01$189.39Not available in this settingRVU22B
2022-01-01$189.39Not available in this settingRVU22A
2021-10-01$192.22Not available in this settingRVU21D
2021-07-01$192.22Not available in this settingRVU21C
2021-04-01$192.22Not available in this settingRVU21B
2021-01-01$192.22Not available in this settingRVU21A
2020-10-01$196.14Not available in this settingRVU20D
2020-07-01$196.14Not available in this settingRVU20C
2020-04-01$196.14Not available in this settingRVU20B
2020-01-01$196.14Not available in this settingRVU20A
2019-10-01$195.80Not available in this settingRVU19D
2019-07-01$195.80Not available in this settingRVU19C
2019-04-01$195.80Not available in this settingRVU19B
2019-01-01$195.80Not available in this settingRVU19A
2018-10-01$198.87Not available in this settingRVU18D
2018-07-01$198.87Not available in this settingRVU18C
2018-04-01$198.87Not available in this settingRVU18B
2018-01-01$198.87Not available in this settingRVU18AR1
2017-10-01$214.52Not available in this settingRVU17D
2017-07-01$214.52Not available in this settingRVU17C
2017-04-01$214.52Not available in this settingRVU17B
2017-01-01$214.52Not available in this settingRVU17A
2016-10-01$213.56Not available in this settingRVU16D
2016-07-01$213.56Not available in this settingRVU16C
2016-04-01$213.56Not available in this settingRVU16B
2016-01-01$213.56Not available in this settingRVU16A
2015-10-01$213.42Not available in this settingRVU15D
2015-07-01$213.42Not available in this settingRVU15C
2015-04-01$212.36Not available in this settingRVU15B
2015-01-01$212.36Not available in this settingRVU15A
2014-10-01$212.48Not available in this settingRVU14D
2014-07-01$212.48Not available in this settingRVU14C
2014-04-01$212.48Not available in this settingRVU14B
2014-01-01$212.48Not available in this settingRVU14A
2013-10-01$175.63Not available in this settingRVU13D
2013-07-01$175.63Not available in this settingRVU13C
2013-04-01$175.63Not available in this settingRVU13B
2013-01-01$175.63Not available in this settingRVU13AR

Price 93306 for an earlier date of service

Where the South Carolina rate applies

South Carolina is a Medicare payment area, not a city. Our Census mapping connects it to 475 cities and communities in South Carolina. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Abney Crossroads
  • Adams Run
  • Aiken
  • Alcolu
  • Allendale
  • Anderson
  • Andrews

Browse all communities in South Carolina

93306 billing questions

Can 93320 and 93325 be billed with 93306?

No. Spectral Doppler and color flow mapping are included in 93306. Those services may be separately reported with other eligible echocardiography codes when performed.

When should 93307 be used instead of 93306?

Use 93307 for a complete transthoracic study performed without Doppler. Use 93306 when the complete examination includes both spectral and color Doppler.

What modifier does the interpreting cardiologist use for a hospital study?

The physician appends modifier 26 to bill only the interpretation of a study performed using hospital equipment and staff. The hospital bills its technical services under its own payment system.

What if poor acoustic windows prevent some views from being obtained?

A complete study can still be reported when the required examination was attempted and the report explains which structures could not be adequately visualized. An examination intentionally restricted to selected structures or a focused question is reported with 93308.

Is strain imaging separately reportable with a complete TTE?

Yes. When speckle-tracking myocardial strain imaging is performed and documented, report add-on code 93356 with 93306, such as during chemotherapy-related cardiac monitoring.

Does 93306 apply to an examination of congenital cardiac anomalies?

Use the congenital transthoracic codes 93303 or 93304 when the examination evaluates congenital cardiac anomalies. Report applicable Doppler codes separately when those services are performed.

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
RVUs for 93306PPRRVU2026_Oct_nonQPP.csv, line 12,046 (RVU26D)
Geographic factors for South CarolinaGPCI2026.csv, line 93 (RVU26D)

Open CMS sourceHow we calculate rates

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