CPT code 58340: Uterine catheterization, for hysterosalpingography or sonohysterography2026 Medicare rate & RVUs in Riverside, CA

Reports transcervical catheter placement and fluid introduction for hysterosalpingography or saline-infusion sonohysterography during evaluation of the uterine cavity or fallopian tubes.

CMS RVU26DEffective Oct 1, 2026One payment locality3.3K Medicare services in 2024

In Riverside, CA, Medicare pays $256.17 for 58340 in the office and $53.73 when it’s performed in a hospital or facility.

$256.17Office (non-facility)
$53.73Hospital or facility
+8.2%vs the national office rate ($236.81)

Check a contract rate as a % of Medicare · 58340 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 58340 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Riverside, CA
  2. What 58340 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 58340 covers

A clinician, commonly a gynecologist or fertility specialist, passes a narrow catheter through the cervix into the uterine cavity and introduces contrast or saline for imaging. In hysterosalpingography, contrast helps show the uterine cavity and fallopian tubes on imaging; in saline-infusion sonohysterography, saline outlines the cavity during ultrasound. These procedures are commonly performed in an office or imaging setting during evaluation of infertility, tubal patency, or suspected intracavitary abnormalities.

Report 58340 for the catheter placement and fluid introduction, supported by documentation of the method and indication; report the applicable imaging service separately when performed. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service, and co-surgeons and team surgery are not permitted.

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 Riverside, CA compares for 58340

Across 109 of 109 payment localities, the office rate for 58340 runs from $205.86 in Arkansas to $327.71 in San Benito County, CA. Riverside, CA pays $256.17. The RVUs are the same everywhere; the geographic indexes change the dollars.

58340 in Riverside, CA vs other payment areas
  1. Riverside, CA · this page$256.17
  2. Bakersfield, CA · California$255.06−$1.11
  3. Chico, CA · California$254.66−$1.51
  4. El Centro, CA · California$254.68−$1.49
  5. Fresno, CA · California$254.66−$1.51
  6. Hanford, CA · California$254.66−$1.51
  7. Los Angeles, CA · California$273.64+$17.47

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

Every other payment area

58340 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$254.66$52.22
Merced, CACalifornia$254.66$52.22
Modesto, CACalifornia$254.66$52.22
Napa, CACalifornia$301.01$57.56
Oxnard, CACalifornia$272.87$54.55
Redding, CACalifornia$254.66$52.22
Rest of CaliforniaCalifornia$254.66$52.22
Sacramento, CACalifornia$268.83$54.02

58340 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.

$205.86

$291.19

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

View every state and territory as a table
58340 office rate range by state
State / territoryOffice rate rangeLocalities
AK$262.301
AL$209.361
AR$205.861
AZ$229.831
CA$254.66–$327.7129
CO$249.151
CT$254.031
DC$275.101
DE$234.041
FL$230.21–$252.303
GA$215.74–$241.092
GU$262.711
HI$262.711
IA$216.701
ID$218.081
IL$221.75–$246.124
IN$219.561
KS$214.971
KY$213.841
LA$213.22–$225.452
MA$247.10–$276.942
MD$239.16–$275.103
ME$218.77–$233.262
MI$219.72–$232.902
MN$239.421
MO$208.62–$227.063
MS$207.321
MT$236.801
NC$221.501
ND$234.031
NE$218.241
NH$244.571
NJ$257.13–$271.492
NM$220.871
NV$236.231
NY$225.25–$281.105
OH$219.151
OK$214.001
OR$234.61–$258.652
PA$219.88–$246.572
PR$238.981
RI$243.571
SC$220.651
SD$233.711
TN$216.141
TX$218.17–$248.138
UT$224.131
VA$231.98–$275.102
VI$238.981
VT$232.471
WA$246.85–$283.572
WI$225.031
WV$212.181
WY$235.601

See 58340 in every payment locality

How the 58340 rate is calculated

Each of 58340’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 · 58340

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.86

0.86 RVUs× 1.000 GPCI

Practice expense6.09

6.09 RVUs× 1.000 GPCI

Malpractice0.14

0.14 RVUs× 1.000 GPCI

Adjusted RVUs

7.0900

Conversion factor

$33.4009

Medicare rate

$236.81

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

The exact Riverside, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,545

Code
58340
Physician work
0.86
Practice expense
6.09
Malpractice
0.14

GPCI2026.csv

20

Locality
Riverside, CA
Physician work
1.018
Practice expense
1.096
Malpractice
0.853
Office calculation for 58340 in Riverside, CA
ComponentRVULocality factorAdjusted
Physician work0.86× 1.0180.8755
Practice expense6.09× 1.0966.6746
Malpractice0.14× 0.8530.1194
Total RVUs7.6695
Conversion factor× 33.4009

Office rate, Riverside, CA$256.17

Office: (0.86 × 1.018 + 6.09 × 1.096 + 0.14 × 0.853) × $33.4009 = $256.17

Facility: (0.86 × 1.018 + 0.56 × 1.096 + 0.14 × 0.853) × $33.4009 = $53.73

Open 58340 in the RVU calculator

Payment rules and modifiers for 58340

The CMS indicators that decide how 58340 is paid alongside other services.

CMS payment indicators · 58340

Uterine catheterization, for hysterosalpingography or sonohysterography

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

58340 without 51 · national office

$236.81

Uterine catheterization, for hysterosalpingography or sonohysterography

58340-51 · Second procedure: 50%

$118.41

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

How 58340 has changed in Riverside, CA

58340 · Office / nonfacility

$256.17

Effective 2026-10-01

The base rate is $12.62 higher than on 2025-10-01, moving from $243.55 to $256.17 (5.2%).

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

    $243.55changed to$256.17

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.88 changed to 0.86
    • Practice expense RVU 5.95 changed to 6.09
    • Malpractice RVU 0.15 changed to 0.14
    • Work GPCI 1.014 changed to 1.018
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.892 changed to 0.853

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $260.89changed to$243.55

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 6.24 changed to 5.95
    • Malpractice RVU 0.14 changed to 0.15

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $256.63changed to$260.89

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $268.84changed to$256.63

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 6.40 changed to 6.24
    • Work GPCI 1.021 changed to 1.014
    • Practice expense GPCI 1.079 changed to 1.093
    • Malpractice GPCI 0.924 changed to 0.892
  5. January 1, 2023

    RVU23A

    $277.38changed to$268.84

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 6.57 changed to 6.40
    • Malpractice RVU 0.12 changed to 0.14
    • Work GPCI 1.027 changed to 1.021
    • Practice expense GPCI 1.065 changed to 1.079
    • Malpractice GPCI 0.955 changed to 0.924

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $254.48changed to$277.38

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 5.89 changed to 6.57
    • Malpractice RVU 0.13 changed to 0.12
    • Malpractice GPCI 0.896 changed to 0.955

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $211.05changed to$254.48

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.53 changed to 5.89
    • Malpractice RVU 0.12 changed to 0.13
    • Work GPCI 1.024 changed to 1.027
    • Practice expense GPCI 1.070 changed to 1.065
    • Malpractice GPCI 0.830 changed to 0.896

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $170.18changed to$211.05

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 3.49 changed to 4.53
    • Malpractice RVU 0.10 changed to 0.12
    • Work GPCI 1.021 changed to 1.024
    • Practice expense GPCI 1.074 changed to 1.070
    • Malpractice GPCI 0.753 changed to 0.830

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $128.36changed to$170.18

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.42 changed to 3.49
    • Work GPCI 1.020 changed to 1.021
    • Malpractice GPCI 0.689 changed to 0.753

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $127.52changed to$128.36

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 2.40 changed to 2.42
    • Work GPCI 1.024 changed to 1.020
    • Practice expense GPCI 1.079 changed to 1.074
    • Malpractice GPCI 0.626 changed to 0.689

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$127.52

    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$256.17$53.73RVU26D
2026-07-01$256.17$53.73RVU26C
2026-04-01$256.17$53.73RVU26B
2026-01-01$256.17$53.73RVU26A
2025-10-01$243.55$58.65RVU25D
2025-07-01$243.55$58.65RVU25C
2025-04-01$243.55$58.65RVU25B
2025-01-01$243.55$58.65RVU25A
2024-10-01$260.89$59.69RVU24D
2024-07-01$260.89$59.69RVU24C
2024-04-01$260.89$59.69RVU24B
2024-03-09$260.89$59.69RVU24AR
2024-01-01$256.63$58.72RVU24A
2023-10-01$268.84$60.06RVU23D
2023-07-01$268.84$60.06RVU23C
2023-04-01$268.84$60.06RVU23B
2023-01-01$268.84$60.06RVU23A
2022-10-01$277.38$59.57RVU22D
2022-07-01$277.38$59.57RVU22C
2022-04-01$277.38$59.57RVU22B
2022-01-01$277.38$59.57RVU22A
2021-10-01$254.48$60.13RVU21D
2021-07-01$254.48$60.13RVU21C
2021-04-01$254.48$60.13RVU21B
2021-01-01$254.48$60.13RVU21A
2020-10-01$211.05$61.22RVU20D
2020-07-01$211.05$61.22RVU20C
2020-04-01$211.05$61.22RVU20B
2020-01-01$211.05$61.22RVU20A
2019-10-01$170.18$60.64RVU19D
2019-07-01$170.18$60.64RVU19C
2019-04-01$170.18$60.64RVU19B
2019-01-01$170.18$60.64RVU19A
2018-10-01$128.36$61.08RVU18D
2018-07-01$128.36$61.08RVU18C
2018-04-01$128.36$61.08RVU18B
2018-01-01$128.36$61.08RVU18AR1
2017-10-01$127.52$60.92RVU17D
2017-07-01$127.52$60.92RVU17C
2017-04-01$127.52$60.92RVU17B
2017-01-01$127.52$60.92RVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 58340 for an earlier date of service

Where the Riverside, CA rate applies

Riverside, CA is a Medicare payment area, not a city. Our Census mapping connects it to 127 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Ontario
  • Riverside
  • San Bernardino
  • Adelanto
  • Aguanga
  • Anza
  • Apple Valley
  • Baker

Browse all communities in California

58340 billing questions

How is 58340 different from 74740?

58340 covers the transcervical catheter placement and fluid introduction. Code 74740 represents the radiological supervision and interpretation for hysterosalpingography.

Can 58340 be reported with 76831?

Yes, when saline-infusion sonohysterography is performed, 58340 represents the catheter placement and saline introduction, while 76831 represents the ultrasound service.

What documentation supports 58340?

Document the indication, catheter placement through the cervix, and introduction of contrast or saline for the imaging procedure.

Does modifier 50 apply when both fallopian tubes are evaluated?

No. The CMS bilateral adjustment does not apply to 58340, and modifier 50 is inappropriate.

How does the 0-day global period affect same-day care?

Same-day preoperative and postoperative care is included in the procedure's payment.

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 58340PPRRVU2026_Oct_nonQPP.csv, line 6,545 (RVU26D)
Geographic factors for Riverside, CAGPCI2026.csv, line 20 (RVU26D)

Open CMS sourceHow we calculate rates

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