CPT code 76831: Sonohysterography, saline infusion2026 Medicare rate & RVUs in Mississippi

Reports ultrasound evaluation of the uterine cavity during saline infusion, commonly used to investigate abnormal bleeding or suspected intracavitary lesions.

CMS RVU26DEffective Oct 1, 2026One payment locality3.2K Medicare services in 2024

In Mississippi, Medicare pays $103.99 for 76831 in the office.

$103.99Office (non-facility)
Not available in this settingHospital or facility
−11.3%vs the national office rate ($117.24)

Check a contract rate as a % of Medicare · 76831 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 76831 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 76831 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 76831 covers

During saline infusion sonohysterography, a clinician passes a catheter through the cervix and introduces sterile saline while ultrasound images show the distended uterine cavity. The added fluid helps reveal findings such as an endometrial polyp or submucosal fibroid. Gynecologists commonly perform the procedure in an office or imaging setting; radiology teams may provide the imaging and interpretation. It is used in evaluations of abnormal uterine bleeding and selected infertility workups.

Report 76831 for the ultrasound imaging and interpretation of the cavity during saline infusion. Documentation should support the clinical indication, the infusion and imaging performed, and the findings. Catheterization and saline introduction are represented by 58340 when separately reportable; that code describes the procedural step rather than the ultrasound interpretation. Billing 76831 without a component modifier represents the global service. Modifier 26 identifies the professional interpretation, while modifier TC identifies the technical service. When multiple diagnostic imaging procedures are reported, the applicable multiple procedure reduction applies to both the professional and technical components.

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 Mississippi compares for 76831

Across 109 of 109 payment localities, the office rate for 76831 runs from $103.43 in Arkansas to $159.78 in San Benito County, CA. Mississippi pays $103.99. The RVUs are the same everywhere; the geographic indexes change the dollars.

76831 in Mississippi vs other payment areas
  1. Mississippi · this page$103.99
  2. Los Angeles, CA · California$134.50+$30.51
  3. Washington, DC area · District of Columbia$135.10+$31.11
  4. Miami, FL · Florida$123.57+$19.58
  5. Chicago, IL · Illinois$120.02+$16.03
  6. Manhattan, NY · New York$134.65+$30.66
  7. Alaska · Alaska$134.17+$30.18

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

Every other payment area

76831 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$104.99—
ArkansasArkansas$103.43—
ArizonaArizona$114.14—
Bakersfield, CACalifornia$125.88—
Chico, CACalifornia$125.71—
El Centro, CACalifornia$125.72—
Fresno, CACalifornia$125.71—
Hanford, CACalifornia$125.71—

76831 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.

$103.43

$142.75

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

View every state and territory as a table
76831 office rate range by state
State / territoryOffice rate rangeLocalities
AK$134.171
AL$104.991
AR$103.431
AZ$114.141
CA$125.71–$159.7829
CO$123.051
CT$125.151
DC$135.101
DE$116.081
FL$114.02–$123.573
GA$107.60–$119.122
GU$129.161
HI$129.161
IA$108.391
ID$108.981
IL$110.16–$121.184
IN$109.651
KS$107.561
KY$106.861
LA$106.57–$112.032
MA$122.16–$135.902
MD$118.44–$135.103
ME$109.23–$115.792
MI$109.43–$115.162
MN$118.731
MO$104.47–$112.823
MS$103.991
MT$117.231
NC$110.461
ND$116.251
NE$109.101
NH$120.811
NJ$126.82–$133.572
NM$109.921
NV$117.051
NY$112.13–$137.595
OH$109.231
OK$107.001
OR$116.37–$127.422
PA$109.59–$121.762
PR$118.231
RI$120.541
SC$109.981
SD$116.131
TN$108.071
TX$108.82–$122.448
UT$111.541
VA$115.18–$135.102
VI$118.231
VT$115.491
WA$122.03–$139.032
WI$112.211
WV$105.881
WY$116.801

See 76831 in every payment locality

How the 76831 rate is calculated

Each of 76831’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 · 76831

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.70

0.70 RVUs× 1.000 GPCI

Practice expense2.76

2.76 RVUs× 1.000 GPCI

Malpractice0.05

0.05 RVUs× 1.000 GPCI

Adjusted RVUs

3.5100

Conversion factor

$33.4009

Medicare rate

$117.24

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

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

8,823

Code
76831
Physician work
0.70
Practice expense
2.76
Malpractice
0.05

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 76831 in Mississippi
ComponentRVULocality factorAdjusted
Physician work0.70× 1.0000.7000
Practice expense2.76× 0.8612.3764
Malpractice0.05× 0.7390.0370
Total RVUs3.1133
Conversion factor× 33.4009

Office rate, Mississippi$103.99

Office: (0.7 × 1 + 2.76 × 0.861 + 0.05 × 0.739) × $33.4009 = $103.99

Open 76831 in the RVU calculator

Payment rules and modifiers for 76831

The CMS indicators that decide how 76831 is paid alongside other services.

CMS payment indicators · 76831

Sonohysterography, saline infusion

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures4Diagnostic imaging reduction applies to the technical component (and professional component) of additional services.
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

76831 without 26 · national office

$117.24

Sonohysterography, saline infusion

76831-26 · Professional component

$34.74

Pays only the interpretation and report.

When to use modifier 26

How 76831 has changed in Mississippi

76831 · Office / nonfacility

$103.99

Effective 2026-10-01

The base rate is $6.40 higher than on 2025-10-01, moving from $97.59 to $103.99 (6.6%).

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

    $97.59changed to$103.99

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.72 changed to 0.70
    • Practice expense RVU 2.66 changed to 2.76
    • Malpractice RVU 0.04 changed to 0.05
    • Practice expense GPCI 0.852 changed to 0.861
    • Malpractice GPCI 0.768 changed to 0.739

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $102.44changed to$97.59

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 2.74 changed to 2.66
    • Malpractice RVU 0.03 changed to 0.04

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $100.77changed to$102.44

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $104.06changed to$100.77

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 2.75 changed to 2.74
    • Practice expense GPCI 0.847 changed to 0.852
    • Malpractice GPCI 0.720 changed to 0.768
  5. January 1, 2023

    RVU23A

    $105.92changed to$104.06

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 2.74 changed to 2.75
    • Malpractice RVU 0.05 changed to 0.03
    • Practice expense GPCI 0.842 changed to 0.847
    • Malpractice GPCI 0.671 changed to 0.720

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $107.97changed to$105.92

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 2.78 changed to 2.74

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $107.06changed to$107.97

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 2.60 changed to 2.78
    • Malpractice RVU 0.04 changed to 0.05
    • Practice expense GPCI 0.856 changed to 0.842
    • Malpractice GPCI 0.521 changed to 0.671

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $107.33changed to$107.06

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 2.57 changed to 2.60
    • Malpractice RVU 0.06 changed to 0.04
    • Practice expense GPCI 0.870 changed to 0.856
    • Malpractice GPCI 0.370 changed to 0.521

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $109.09changed to$107.33

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.63 changed to 2.57

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $108.73changed to$109.09

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense GPCI 0.867 changed to 0.870
    • Malpractice GPCI 0.492 changed to 0.370

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $106.91changed to$108.73

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 2.58 changed to 2.63
    • Practice expense GPCI 0.864 changed to 0.867
    • Malpractice GPCI 0.613 changed to 0.492

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $107.20changed to$106.91

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 2.57 changed to 2.58
    • Malpractice RVU 0.07 changed to 0.06

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $106.67changed to$107.20

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $111.68changed to$106.67

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 2.74 changed to 2.57
    • Malpractice RVU 0.04 changed to 0.07
    • Practice expense GPCI 0.865 changed to 0.864
    • Malpractice GPCI 0.687 changed to 0.613

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $114.81changed to$111.68

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 3.03 changed to 2.74
    • Practice expense GPCI 0.866 changed to 0.865
    • Malpractice GPCI 0.761 changed to 0.687

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $114.81

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$103.99Not available in this settingRVU26D
2026-07-01$103.99Not available in this settingRVU26C
2026-04-01$103.99Not available in this settingRVU26B
2026-01-01$103.99Not available in this settingRVU26A
2025-10-01$97.59Not available in this settingRVU25D
2025-07-01$97.59Not available in this settingRVU25C
2025-04-01$97.59Not available in this settingRVU25B
2025-01-01$97.59Not available in this settingRVU25A
2024-10-01$102.44Not available in this settingRVU24D
2024-07-01$102.44Not available in this settingRVU24C
2024-04-01$102.44Not available in this settingRVU24B
2024-03-09$102.44Not available in this settingRVU24AR
2024-01-01$100.77Not available in this settingRVU24A
2023-10-01$104.06Not available in this settingRVU23D
2023-07-01$104.06Not available in this settingRVU23C
2023-04-01$104.06Not available in this settingRVU23B
2023-01-01$104.06Not available in this settingRVU23A
2022-10-01$105.92Not available in this settingRVU22D
2022-07-01$105.92Not available in this settingRVU22C
2022-04-01$105.92Not available in this settingRVU22B
2022-01-01$105.92Not available in this settingRVU22A
2021-10-01$107.97Not available in this settingRVU21D
2021-07-01$107.97Not available in this settingRVU21C
2021-04-01$107.97Not available in this settingRVU21B
2021-01-01$107.97Not available in this settingRVU21A
2020-10-01$107.06Not available in this settingRVU20D
2020-07-01$107.06Not available in this settingRVU20C
2020-04-01$107.06Not available in this settingRVU20B
2020-01-01$107.06Not available in this settingRVU20A
2019-10-01$107.33Not available in this settingRVU19D
2019-07-01$107.33Not available in this settingRVU19C
2019-04-01$107.33Not available in this settingRVU19B
2019-01-01$107.33Not available in this settingRVU19A
2018-10-01$109.09Not available in this settingRVU18D
2018-07-01$109.09Not available in this settingRVU18C
2018-04-01$109.09Not available in this settingRVU18B
2018-01-01$109.09Not available in this settingRVU18AR1
2017-10-01$108.73Not available in this settingRVU17D
2017-07-01$108.73Not available in this settingRVU17C
2017-04-01$108.73Not available in this settingRVU17B
2017-01-01$108.73Not available in this settingRVU17A
2016-10-01$106.91Not available in this settingRVU16D
2016-07-01$106.91Not available in this settingRVU16C
2016-04-01$106.91Not available in this settingRVU16B
2016-01-01$106.91Not available in this settingRVU16A
2015-10-01$107.20Not available in this settingRVU15D
2015-07-01$107.20Not available in this settingRVU15C
2015-04-01$106.67Not available in this settingRVU15B
2015-01-01$106.67Not available in this settingRVU15A
2014-10-01$111.68Not available in this settingRVU14D
2014-07-01$111.68Not available in this settingRVU14C
2014-04-01$111.68Not available in this settingRVU14B
2014-01-01$111.68Not available in this settingRVU14A
2013-10-01$114.81Not available in this settingRVU13D
2013-07-01$114.81Not available in this settingRVU13C
2013-04-01$114.81Not available in this settingRVU13B
2013-01-01$114.81Not available in this settingRVU13AR

Price 76831 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

76831 billing questions

Can catheter placement and saline introduction be reported separately?

Code 58340 represents catheterization and introduction of saline for sonohysterography when separately reportable. Code 76831 represents the ultrasound imaging and interpretation.

How are the professional and technical services billed?

Report 76831 without a component modifier for the global service. Use modifier 26 for the professional interpretation or modifier TC for the technical service.

Does a multiple-procedure reduction affect 76831?

Yes. The diagnostic imaging multiple procedure reduction applies to the technical and professional components when applicable.

What documentation supports reporting 76831?

Document the clinical reason for the study, the saline infusion and ultrasound imaging performed, and the findings in the uterine cavity.

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 76831PPRRVU2026_Oct_nonQPP.csv, line 8,823 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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