CPT code 93321: Doppler echo, limited or follow-up2026 Medicare rate & RVUs in Redding, CA

Reports limited or follow-up spectral Doppler assessment performed with echocardiographic imaging, such as focused evaluation of blood flow or pressure gradients.

CMS RVU26DEffective Oct 1, 2026One payment locality336.6K Medicare services in 2024

In Redding, CA, Medicare pays $27.24 for 93321 in the office.

$27.24Office (non-facility)
Not available in this settingHospital or facility
+7.3%vs the national office rate ($25.38)

Check a contract rate as a % of Medicare · 93321 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 93321 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Redding, CA
  2. What 93321 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 93321 covers

This add-on covers a limited or follow-up spectral Doppler assessment during an echocardiographic examination, using pulsed-wave and/or continuous-wave Doppler to evaluate blood-flow patterns or velocities. It may help assess a focused hemodynamic question, such as a valve gradient, rather than provide the broader Doppler assessment of a complete study. A cardiac sonographer typically acquires the images, and a qualified physician interprets the findings in an outpatient imaging setting or hospital.

Report 93321 only with an eligible primary echocardiographic procedure; a limited transthoracic study such as 93308 is a common pairing. The record should support the focused Doppler service and its medical purpose. CMS treats it as an add-on paid within the primary procedure’s global period. Modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff, and reporting without either modifier represents the global service.

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 Redding, CA compares for 93321

Across 109 of 109 payment localities, the office rate for 93321 runs from $22.40 in Arkansas to $34.64 in San Benito County, CA. Redding, CA pays $27.24. The RVUs are the same everywhere; the geographic indexes change the dollars.

93321 in Redding, CA vs other payment areas
  1. Redding, CA · this page$27.24
  2. Bakersfield, CA · California$27.27+$0.03
  3. Chico, CA · California$27.24
  4. El Centro, CA · California$27.24
  5. Fresno, CA · California$27.24
  6. Hanford, CA · California$27.24
  7. Los Angeles, CA · California$29.15+$1.91

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

Every other payment area

93321 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$27.24—
Merced, CACalifornia$27.24—
Modesto, CACalifornia$27.24—
Napa, CACalifornia$31.91—
Oxnard, CACalifornia$29.05—
Rest of CaliforniaCalifornia$27.24—
Riverside, CACalifornia$27.35—
Sacramento, CACalifornia$28.68—

93321 rates by state

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

Explore a state

Local rates. Clear comparisons.

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

$22.40

$30.94

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

View every state and territory as a table
93321 office rate range by state
State / territoryOffice rate rangeLocalities
AK$29.041
AL$22.731
AR$22.401
AZ$24.721
CA$27.24–$34.6429
CO$26.651
CT$27.101
DC$29.261
DE$25.141
FL$24.67–$26.723
GA$23.28–$25.792
GU$27.991
HI$27.991
IA$23.481
ID$23.611
IL$23.83–$26.224
IN$23.751
KS$23.301
KY$23.131
LA$23.07–$24.252
MA$26.46–$29.442
MD$25.65–$29.263
ME$23.66–$25.082
MI$23.68–$24.912
MN$25.731
MO$22.61–$24.423
MS$22.511
MT$25.381
NC$23.921
ND$25.191
NE$23.631
NH$26.161
NJ$27.46–$28.932
NM$23.791
NV$25.351
NY$24.28–$29.785
OH$23.641
OK$23.171
OR$25.21–$27.602
PA$23.72–$26.362
PR$25.601
RI$26.111
SC$23.811
SD$25.161
TN$23.411
TX$23.56–$26.528
UT$24.151
VA$24.95–$29.262
VI$25.601
VT$25.021
WA$26.43–$30.122
WI$24.311
WV$22.901
WY$25.301

See 93321 in every payment locality

How the 93321 rate is calculated

Each of 93321’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 · 93321

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.15

0.15 RVUs× 1.000 GPCI

Practice expense0.60

0.60 RVUs× 1.000 GPCI

Malpractice0.01

0.01 RVUs× 1.000 GPCI

Adjusted RVUs

0.7600

Conversion factor

$33.4009

Medicare rate

$25.38

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

The exact Redding, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

12,076

Code
93321
Physician work
0.15
Practice expense
0.60
Malpractice
0.01

GPCI2026.csv

19

Locality
Redding, CA
Physician work
1.017
Practice expense
1.096
Malpractice
0.536
Office calculation for 93321 in Redding, CA
ComponentRVULocality factorAdjusted
Physician work0.15× 1.0170.1525
Practice expense0.60× 1.0960.6576
Malpractice0.01× 0.5360.0054
Total RVUs0.8155
Conversion factor× 33.4009

Office rate, Redding, CA$27.24

Office: (0.15 × 1.017 + 0.6 × 1.096 + 0.01 × 0.536) × $33.4009 = $27.24

Open 93321 in the RVU calculator

Payment rules and modifiers for 93321

The CMS indicators that decide how 93321 is paid alongside other services.

CMS payment indicators · 93321

Doppler echo, limited or follow-up

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
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

93321 without 26 · national office

$25.38

Doppler echo, limited or follow-up

93321-26 · Professional component

$7.35

Pays only the interpretation and report.

When to use modifier 26

How 93321 has changed in Redding, CA

93321 · Office / nonfacility

$27.24

Effective 2026-10-01

The base rate is $1.63 higher than on 2025-10-01, moving from $25.61 to $27.24 (6.4%).

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

    $25.61changed to$27.24

    • Conversion factor 32.3465 changed to 33.4009
    • Practice expense RVU 0.58 changed to 0.60
    • Work GPCI 1.014 changed to 1.017
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.560 changed to 0.536

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $26.72changed to$25.61

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.59 changed to 0.58

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $26.28changed to$26.72

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $26.96changed to$26.28

    • Conversion factor 33.8872 changed to 32.7442
    • Work GPCI 1.021 changed to 1.014
    • Practice expense GPCI 1.079 changed to 1.093
    • Malpractice GPCI 0.579 changed to 0.560
  5. January 1, 2023

    RVU23A

    $27.65changed to$26.96

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.60 changed to 0.59
    • Work GPCI 1.027 changed to 1.021
    • Practice expense GPCI 1.065 changed to 1.079
    • Malpractice GPCI 0.597 changed to 0.579

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $28.62changed to$27.65

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 0.62 changed to 0.60

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $28.54changed to$28.62

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.59 changed to 0.62
    • Work GPCI 1.024 changed to 1.027
    • Practice expense GPCI 1.070 changed to 1.065
    • Malpractice GPCI 0.580 changed to 0.597

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $28.94changed to$28.54

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 0.60 changed to 0.59
    • Work GPCI 1.020 changed to 1.024
    • Practice expense GPCI 1.074 changed to 1.070
    • Malpractice GPCI 0.562 changed to 0.580

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $29.68changed to$28.94

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.62 changed to 0.60

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $29.35changed to$29.68

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.61 changed to 0.62
    • Work GPCI 1.024 changed to 1.020
    • Practice expense GPCI 1.079 changed to 1.074
    • Malpractice GPCI 0.610 changed to 0.562

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$29.35

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$27.24Not available in this settingRVU26D
2026-07-01$27.24Not available in this settingRVU26C
2026-04-01$27.24Not available in this settingRVU26B
2026-01-01$27.24Not available in this settingRVU26A
2025-10-01$25.61Not available in this settingRVU25D
2025-07-01$25.61Not available in this settingRVU25C
2025-04-01$25.61Not available in this settingRVU25B
2025-01-01$25.61Not available in this settingRVU25A
2024-10-01$26.72Not available in this settingRVU24D
2024-07-01$26.72Not available in this settingRVU24C
2024-04-01$26.72Not available in this settingRVU24B
2024-03-09$26.72Not available in this settingRVU24AR
2024-01-01$26.28Not available in this settingRVU24A
2023-10-01$26.96Not available in this settingRVU23D
2023-07-01$26.96Not available in this settingRVU23C
2023-04-01$26.96Not available in this settingRVU23B
2023-01-01$26.96Not available in this settingRVU23A
2022-10-01$27.65Not available in this settingRVU22D
2022-07-01$27.65Not available in this settingRVU22C
2022-04-01$27.65Not available in this settingRVU22B
2022-01-01$27.65Not available in this settingRVU22A
2021-10-01$28.62Not available in this settingRVU21D
2021-07-01$28.62Not available in this settingRVU21C
2021-04-01$28.62Not available in this settingRVU21B
2021-01-01$28.62Not available in this settingRVU21A
2020-10-01$28.54Not available in this settingRVU20D
2020-07-01$28.54Not available in this settingRVU20C
2020-04-01$28.54Not available in this settingRVU20B
2020-01-01$28.54Not available in this settingRVU20A
2019-10-01$28.94Not available in this settingRVU19D
2019-07-01$28.94Not available in this settingRVU19C
2019-04-01$28.94Not available in this settingRVU19B
2019-01-01$28.94Not available in this settingRVU19A
2018-10-01$29.68Not available in this settingRVU18D
2018-07-01$29.68Not available in this settingRVU18C
2018-04-01$29.68Not available in this settingRVU18B
2018-01-01$29.68Not available in this settingRVU18AR1
2017-10-01$29.35Not available in this settingRVU17D
2017-07-01$29.35Not available in this settingRVU17C
2017-04-01$29.35Not available in this settingRVU17B
2017-01-01$29.35Not available in this settingRVU17A
2016-10-01Rate data unavailableNot available in this settingRVU16D
2016-07-01Rate data unavailableNot available in this settingRVU16C
2016-04-01Rate data unavailableNot available in this settingRVU16B
2016-01-01Rate data unavailableNot available in this settingRVU16A
2015-10-01Rate data unavailableNot available in this settingRVU15D
2015-07-01Rate data unavailableNot available in this settingRVU15C
2015-04-01Rate data unavailableNot available in this settingRVU15B
2015-01-01Rate data unavailableNot available in this settingRVU15A
2014-10-01Rate data unavailableNot available in this settingRVU14D
2014-07-01Rate data unavailableNot available in this settingRVU14C
2014-04-01Rate data unavailableNot available in this settingRVU14B
2014-01-01Rate data unavailableNot available in this settingRVU14A
2013-10-01Rate data unavailableNot available in this settingRVU13D
2013-07-01Rate data unavailableNot available in this settingRVU13C
2013-04-01Rate data unavailableNot available in this settingRVU13B
2013-01-01Rate data unavailableNot available in this settingRVU13AR

Price 93321 for an earlier date of service

Where the Redding, CA rate applies

Redding, CA is a Medicare payment area, not a city. Our Census mapping connects it to 32 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Redding
  • Anderson
  • Bella Vista
  • Big Bend
  • Burney
  • Cassel
  • Castella
  • Centerville

Browse all communities in California

93321 billing questions

When should 93321 be selected instead of 93320?

Use 93321 for limited or follow-up Doppler assessment. Use 93320 when the Doppler assessment is complete.

Can 93321 be billed by itself?

No. It is an add-on and must be reported with an eligible primary echocardiographic procedure, such as a limited study reported with 93308.

Does a complete study reported with 93306 also need 93321?

93306 includes spectral Doppler as part of the complete transthoracic study. Do not add 93321 merely to report that included Doppler work.

How do modifiers 26 and TC apply?

Use modifier 26 for the physician’s interpretation or TC for the technical service. Without either modifier, the claim represents the global service.

What documentation supports limited Doppler reporting?

Document the focused or follow-up Doppler assessment, its clinical purpose, and the findings interpreted. The record should distinguish this work from a complete Doppler examination.

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 93321PPRRVU2026_Oct_nonQPP.csv, line 12,076 (RVU26D)
Geographic factors for Redding, CAGPCI2026.csv, line 19 (RVU26D)

Open CMS sourceHow we calculate rates

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