FeeBase
Log inGet started
Menu
On this page

CMS RVU26D · Effective 2026-10-01

58558 in Wyoming**

Office / nonfacility

$1263.65

Base rate per service

Facility setting

$198.16

Base rate per service

Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.

Gynecology

About 58558: Hysteroscopic endometrial sampling or polypectomy

Report this service when a clinician uses hysteroscopy to sample the endometrium or remove an endometrial polyp, with or without curettage.

A gynecologist passes a hysteroscope through the cervix to inspect the uterine cavity and obtain endometrial tissue or remove a polyp under direct visualization. The procedure is commonly performed in an operating room or ambulatory surgery center for abnormal uterine bleeding, a suspected endometrial lesion, or a polyp identified on imaging or earlier evaluation. Tissue is typically sent for pathology. The code also covers curettage performed with the hysteroscopic service.

Choose this code when the operative hysteroscopy includes endometrial sampling or polypectomy, rather than diagnostic inspection alone or removal of a submucosal fibroid. Document the indication, hysteroscopic findings, tissue sampling or polyp removal, and any curettage performed. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, endoscopy family pricing applies. Modifier 50 is inappropriate. Assistant-at-surgery services are not paid; co-surgeons are permitted, while team surgery is not permitted.

CMS billing rules for 58558

Global period
Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
Multiple procedures
Endoscopy family pricing applies when related endoscopies are performed together.
Bilateral procedures
Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
Assistant at surgery
Statutory restriction: assistant at surgery is not paid.
Co-surgeons
Co-surgeons permitted.
Team surgery
Team surgery not permitted.

Where the value comes from

  • Work RVU4.07 · 11%
  • Practice expense (office) RVU33.23 · 87%
  • Malpractice RVU0.72 · 2%

48.1K

Medicare services in 2024 · #797 by national volume

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.

58558 compared with similar codes

Office rates for Wyoming**, from the same CMS release.

58555

Hysteroscopy

Diagnostic only

$324.09

Use 58555 for diagnostic hysteroscopy alone. Use 58558 when the hysteroscopy includes endometrial sampling or polyp removal.

58561

Myoma removal

Hysteroscopic approach

No office rate

Use 58561 for hysteroscopic removal of a submucosal fibroid. Code 58558 addresses endometrial sampling or polypectomy.

58100

Endometrial biopsy

Without cervical dilation

$96.37

Use 58100 for endometrial sampling without hysteroscopic visualization. Choose 58558 when sampling is performed through a hysteroscope.

The same code, a different location

How does Wyoming** compare?

58558 across payment areas

Same release and payment basis · bars start at $0

  1. Wyoming** · This locality

    $1263.65

  2. Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty)

    $1470.51

    $206.86 higher than Wyoming**

  3. Dc + Md/Va Suburbs

    $1477.52

    $213.87 higher than Wyoming**

  4. Miami

    $1352.18

    $88.53 higher than Wyoming**

  5. Chicago

    $1307.55

    $43.90 higher than Wyoming**

  6. Manhattan

    $1472.50

    $208.85 higher than Wyoming**

  7. Alaska*

    $1399.22

    $135.57 higher than Wyoming**

Other payment areas listed in Wyoming appear first, followed by selected cross-country examples. The chart compares amounts, not distance.

Across 109 of 109 CMS payment localities with a supported office rate, 58558 ranges from $1101.74 in Arkansas to $1764.28 in San Jose-Sunnyvale-Santa Clara (San Benito Cnty). This is a geographic range, not an average.

The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.

Compare all 108 other payment areas

  • Alabama

    Alabama · 58558

    Office

    $1120.73

    Facility

    $188.42

    $142.92 lower than Wyoming** for the office setting.

  • Arkansas

    Arkansas · 58558

    Office

    $1101.74

    Facility

    $186.49

    $161.91 lower than Wyoming** for the office setting.

  • Arizona

    Arizona · 58558

    Office

    $1232.03

    Facility

    $199.57

    $31.62 lower than Wyoming** for the office setting.

  • Bakersfield

    California · 58558

    Office

    $1369.63

    Facility

    $201.86

    $105.98 higher than Wyoming** for the office setting.

  • Chico

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • El Centro

    California · 58558

    Office

    $1367.73

    Facility

    $199.95

    $104.08 higher than Wyoming** for the office setting.

  • Fresno

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Hanford-Corcoran

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Madera

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Merced

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Modesto

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Napa

    California · 58558

    Office

    $1619.59

    Facility

    $215.27

    $355.94 higher than Wyoming** for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 58558

    Office

    $1466.65

    Facility

    $207.24

    $203.00 higher than Wyoming** for the office setting.

  • Redding

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Rest Of California

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 58558

    Office

    $1375.37

    Facility

    $207.59

    $111.72 higher than Wyoming** for the office setting.

  • Sacramento-Roseville-Folsom

    California · 58558

    Office

    $1444.55

    Facility

    $205.39

    $180.90 higher than Wyoming** for the office setting.

  • Salinas

    California · 58558

    Office

    $1439.43

    Facility

    $204.53

    $175.78 higher than Wyoming** for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 58558

    Office

    $1480.51

    Facility

    $206.18

    $216.86 higher than Wyoming** for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 58558

    Office

    $1724.87

    Facility

    $222.53

    $461.22 higher than Wyoming** for the office setting.

  • San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)

    California · 58558

    Office

    $1724.05

    Facility

    $221.71

    $460.40 higher than Wyoming** for the office setting.

  • San Jose-Sunnyvale-Santa Clara (San Benito Cnty)

    California · 58558

    Office

    $1764.28

    Facility

    $227.84

    $500.63 higher than Wyoming** for the office setting.

  • San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)

    California · 58558

    Office

    $1760.94

    Facility

    $224.50

    $497.29 higher than Wyoming** for the office setting.

  • San Luis Obispo-Paso Robles

    California · 58558

    Office

    $1415.33

    Facility

    $201.74

    $151.68 higher than Wyoming** for the office setting.

  • Santa Cruz-Watsonville

    California · 58558

    Office

    $1500.23

    Facility

    $205.66

    $236.58 higher than Wyoming** for the office setting.

  • Santa Maria-Santa Barbara

    California · 58558

    Office

    $1446.80

    Facility

    $204.44

    $183.15 higher than Wyoming** for the office setting.

  • Santa Rosa-Petaluma

    California · 58558

    Office

    $1515.88

    Facility

    $207.46

    $252.23 higher than Wyoming** for the office setting.

  • Stockton

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Vallejo

    California · 58558

    Office

    $1618.41

    Facility

    $214.09

    $354.76 higher than Wyoming** for the office setting.

  • Visalia

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Yuba City

    California · 58558

    Office

    $1367.61

    Facility

    $199.83

    $103.96 higher than Wyoming** for the office setting.

  • Colorado

    Colorado · 58558

    Office

    $1337.30

    Facility

    $203.62

    $73.65 higher than Wyoming** for the office setting.

  • Connecticut

    Connecticut · 58558

    Office

    $1363.13

    Facility

    $215.60

    $99.48 higher than Wyoming** for the office setting.

  • Delaware

    Delaware · 58558

    Office

    $1254.83

    Facility

    $202.13

    $8.82 lower than Wyoming** for the office setting.

  • Fort Lauderdale

    Florida · 58558

    Office

    $1303.76

    Facility

    $224.42

    $40.11 higher than Wyoming** for the office setting.

  • Rest Of Florida

    Florida · 58558

    Office

    $1233.16

    Facility

    $214.56

    $30.49 lower than Wyoming** for the office setting.

  • Atlanta

    Georgia · 58558

    Office

    $1292.90

    Facility

    $210.37

    $29.25 higher than Wyoming** for the office setting.

  • Rest Of Georgia

    Georgia · 58558

    Office

    $1154.65

    Facility

    $204.23

    $109.00 lower than Wyoming** for the office setting.

  • Hawaii, Guam

    Hawaii · 58558

    Office

    $1411.84

    Facility

    $200.38

    $148.19 higher than Wyoming** for the office setting.

  • Iowa

    Iowa · 58558

    Office

    $1161.06

    Facility

    $186.14

    $102.59 lower than Wyoming** for the office setting.

  • Idaho

    Idaho · 58558

    Office

    $1168.44

    Facility

    $188.19

    $95.21 lower than Wyoming** for the office setting.

  • East St. Louis

    Illinois · 58558

    Office

    $1205.49

    Facility

    $225.24

    $58.16 lower than Wyoming** for the office setting.

  • Rest Of Illinois

    Illinois · 58558

    Office

    $1186.88

    Facility

    $214.09

    $76.77 lower than Wyoming** for the office setting.

  • Suburban Chicago

    Illinois · 58558

    Office

    $1319.39

    Facility

    $225.13

    $55.74 higher than Wyoming** for the office setting.

  • Indiana

    Indiana · 58558

    Office

    $1176.52

    Facility

    $188.81

    $87.13 lower than Wyoming** for the office setting.

  • Kansas

    Kansas · 58558

    Office

    $1151.42

    Facility

    $188.22

    $112.23 lower than Wyoming** for the office setting.

  • Kentucky

    Kentucky · 58558

    Office

    $1144.66

    Facility

    $197.44

    $118.99 lower than Wyoming** for the office setting.

  • New Orleans

    Louisiana · 58558

    Office

    $1207.69

    Facility

    $205.06

    $55.96 lower than Wyoming** for the office setting.

  • Rest Of Louisiana

    Louisiana · 58558

    Office

    $1141.25

    Facility

    $198.29

    $122.40 lower than Wyoming** for the office setting.

  • Metropolitan Boston

    Massachusetts · 58558

    Office

    $1488.15

    Facility

    $215.96

    $224.50 higher than Wyoming** for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 58558

    Office

    $1326.02

    Facility

    $204.06

    $62.37 higher than Wyoming** for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 58558

    Office

    $1358.80

    Facility

    $215.53

    $95.15 higher than Wyoming** for the office setting.

  • Rest Of Maryland

    Maryland · 58558

    Office

    $1282.61

    Facility

    $204.33

    $18.96 higher than Wyoming** for the office setting.

  • Rest Of Maine

    Maine · 58558

    Office

    $1172.02

    Facility

    $191.77

    $91.63 lower than Wyoming** for the office setting.

  • Southern Maine

    Maine · 58558

    Office

    $1251.04

    Facility

    $195.14

    $12.61 lower than Wyoming** for the office setting.

  • Detroit

    Michigan · 58558

    Office

    $1247.55

    Facility

    $219.36

    $16.10 lower than Wyoming** for the office setting.

  • Rest Of Michigan

    Michigan · 58558

    Office

    $1176.44

    Facility

    $203.65

    $87.21 lower than Wyoming** for the office setting.

  • Minnesota

    Minnesota · 58558

    Office

    $1285.16

    Facility

    $188.77

    $21.51 higher than Wyoming** for the office setting.

  • Metropolitan Kansas City

    Missouri · 58558

    Office

    $1201.64

    Facility

    $201.15

    $62.01 lower than Wyoming** for the office setting.

  • Metropolitan St. Louis

    Missouri · 58558

    Office

    $1216.67

    Facility

    $202.33

    $46.98 lower than Wyoming** for the office setting.

  • Rest Of Missouri

    Missouri · 58558

    Office

    $1116.11

    Facility

    $197.66

    $147.54 lower than Wyoming** for the office setting.

  • Mississippi

    Mississippi · 58558

    Office

    $1109.35

    Facility

    $191.96

    $154.30 lower than Wyoming** for the office setting.

  • Montana**

    Montana · 58558

    Office

    $1269.85

    Facility

    $204.37

    $6.20 higher than Wyoming** for the office setting.

  • North Carolina

    North Carolina · 58558

    Office

    $1186.86

    Facility

    $192.76

    $76.79 lower than Wyoming** for the office setting.

  • North Dakota**

    North Dakota · 58558

    Office

    $1255.62

    Facility

    $190.13

    $8.03 lower than Wyoming** for the office setting.

  • Nebraska

    Nebraska · 58558

    Office

    $1169.48

    Facility

    $186.03

    $94.17 lower than Wyoming** for the office setting.

  • New Hampshire

    New Hampshire · 58558

    Office

    $1312.40

    Facility

    $203.23

    $48.75 higher than Wyoming** for the office setting.

  • Northern Nj

    New Jersey · 58558

    Office

    $1457.69

    Facility

    $221.72

    $194.04 higher than Wyoming** for the office setting.

  • Rest Of New Jersey

    New Jersey · 58558

    Office

    $1379.78

    Facility

    $216.27

    $116.13 higher than Wyoming** for the office setting.

  • New Mexico

    New Mexico · 58558

    Office

    $1182.61

    Facility

    $205.56

    $81.04 lower than Wyoming** for the office setting.

  • Nevada**

    Nevada · 58558

    Office

    $1267.00

    Facility

    $200.44

    $3.35 higher than Wyoming** for the office setting.

  • Nyc Suburbs/Long Island

    New York · 58558

    Office

    $1508.99

    Facility

    $242.12

    $245.34 higher than Wyoming** for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 58558

    Office

    $1386.51

    Facility

    $219.80

    $122.86 higher than Wyoming** for the office setting.

  • Queens

    New York · 58558

    Office

    $1491.24

    Facility

    $231.83

    $227.59 higher than Wyoming** for the office setting.

  • Rest Of New York

    New York · 58558

    Office

    $1207.26

    Facility

    $195.05

    $56.39 lower than Wyoming** for the office setting.

  • Ohio

    Ohio · 58558

    Office

    $1173.53

    Facility

    $200.74

    $90.12 lower than Wyoming** for the office setting.

  • Oklahoma

    Oklahoma · 58558

    Office

    $1145.78

    Facility

    $194.30

    $117.87 lower than Wyoming** for the office setting.

  • Portland

    Oregon · 58558

    Office

    $1389.12

    Facility

    $205.36

    $125.47 higher than Wyoming** for the office setting.

  • Rest Of Oregon

    Oregon · 58558

    Office

    $1258.32

    Facility

    $197.09

    $5.33 lower than Wyoming** for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 58558

    Office

    $1322.50

    Facility

    $213.32

    $58.85 higher than Wyoming** for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 58558

    Office

    $1177.57

    Facility

    $199.45

    $86.08 lower than Wyoming** for the office setting.

  • Puerto Rico

    Puerto Rico · 58558

    Office

    $1281.75

    Facility

    $204.54

    $18.10 higher than Wyoming** for the office setting.

  • Rhode Island

    Rhode Island · 58558

    Office

    $1306.51

    Facility

    $205.87

    $42.86 higher than Wyoming** for the office setting.

  • South Carolina

    South Carolina · 58558

    Office

    $1181.94

    Facility

    $197.43

    $81.71 lower than Wyoming** for the office setting.

  • South Dakota**

    South Dakota · 58558

    Office

    $1253.93

    Facility

    $188.45

    $9.72 lower than Wyoming** for the office setting.

  • Tennessee

    Tennessee · 58558

    Office

    $1157.77

    Facility

    $189.24

    $105.88 lower than Wyoming** for the office setting.

  • Austin

    Texas · 58558

    Office

    $1331.81

    Facility

    $204.52

    $68.16 higher than Wyoming** for the office setting.

  • Beaumont

    Texas · 58558

    Office

    $1168.30

    Facility

    $198.71

    $95.35 lower than Wyoming** for the office setting.

  • Brazoria

    Texas · 58558

    Office

    $1255.71

    Facility

    $199.81

    $7.94 lower than Wyoming** for the office setting.

  • Dallas

    Texas · 58558

    Office

    $1263.27

    Facility

    $202.04

    $0.38 lower than Wyoming** for the office setting.

  • Fort Worth

    Texas · 58558

    Office

    $1252.48

    Facility

    $201.91

    $11.17 lower than Wyoming** for the office setting.

  • Galveston

    Texas · 58558

    Office

    $1259.08

    Facility

    $201.05

    $4.57 lower than Wyoming** for the office setting.

  • Houston

    Texas · 58558

    Office

    $1272.26

    Facility

    $214.23

    $8.61 higher than Wyoming** for the office setting.

  • Rest Of Texas

    Texas · 58558

    Office

    $1210.96

    Facility

    $199.82

    $52.69 lower than Wyoming** for the office setting.

  • Utah

    Utah · 58558

    Office

    $1200.85

    Facility

    $199.30

    $62.80 lower than Wyoming** for the office setting.

  • Virginia

    Virginia · 58558

    Office

    $1243.96

    Facility

    $196.59

    $19.69 lower than Wyoming** for the office setting.

  • Virgin Islands

    United States Virgin Islands · 58558

    Office

    $1281.75

    Facility

    $204.54

    $18.10 higher than Wyoming** for the office setting.

  • Vermont

    Vermont · 58558

    Office

    $1246.92

    Facility

    $192.09

    $16.73 lower than Wyoming** for the office setting.

  • Rest Of Washington

    Washington · 58558

    Office

    $1324.75

    Facility

    $202.79

    $61.10 higher than Wyoming** for the office setting.

  • Seattle (King Cnty)

    Washington · 58558

    Office

    $1524.25

    Facility

    $216.89

    $260.60 higher than Wyoming** for the office setting.

  • Wisconsin

    Wisconsin · 58558

    Office

    $1206.64

    Facility

    $185.91

    $57.01 lower than Wyoming** for the office setting.

  • West Virginia

    West Virginia · 58558

    Office

    $1134.87

    Facility

    $208.96

    $128.78 lower than Wyoming** for the office setting.

See how rates vary across the country

58558 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$1,101.74

$1,565.95

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$1,399.221
AL$1,120.731
AR$1,101.741
AZ$1,232.031
CA$1,367.61–$1,764.2829
CO$1,337.301
CT$1,363.131
DC$1,477.521
DE$1,254.831
FL$1,233.16–$1,352.183
GA$1,154.65–$1,292.902
GU$1,411.841
HI$1,411.841
IA$1,161.061
ID$1,168.441
IL$1,186.88–$1,319.394
IN$1,176.521
KS$1,151.421
KY$1,144.661
LA$1,141.25–$1,207.692
MA$1,326.02–$1,488.152
MD$1,282.61–$1,477.523
ME$1,172.02–$1,251.042
MI$1,176.44–$1,247.552
MN$1,285.161
MO$1,116.11–$1,216.673
MS$1,109.351
MT$1,269.851
NC$1,186.861
ND$1,255.621
NE$1,169.481
NH$1,312.401
NJ$1,379.78–$1,457.692
NM$1,182.611
NV$1,267.001
NY$1,207.26–$1,508.995
OH$1,173.531
OK$1,145.781
OR$1,258.32–$1,389.122
PA$1,177.57–$1,322.502
PR$1,281.751
RI$1,306.511
SC$1,181.941
SD$1,253.931
TN$1,157.771
TX$1,168.30–$1,331.818
UT$1,200.851
VA$1,243.96–$1,477.522
VI$1,281.751
VT$1,246.921
WA$1,324.75–$1,524.252
WI$1,206.641
WV$1,134.871
WY$1,263.651

Explore 58558 on the national rate map →

Where does this rate apply?

Wyoming** is a Medicare payment area. Our Census mapping connects it to 205 cities and communities in Wyoming, including the examples shown here.

Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.

Browse all communities in Wyoming →

Why are the office and facility amounts different?

For 58558 in Wyoming**, the physician’s office rate is $1263.65 and the facility-setting rate is $198.16: a difference of $1065.49.

The calculation uses a different practice-expense RVU for each setting. Both amounts here are physician fee-schedule amounts. The facility figure does not include a hospital’s separate charges, so this comparison does not tell you the total cost of receiving care in each setting.

See the inputs behind this difference →

Use this rate

What is a percentage of Medicare worth?

Turn a percentage into dollars for 58558 in Wyoming**. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$1390.02

$1263.65 × 110% = $1390.02

A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.

Working with a whole code list?

Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.

Compare your contract offer →

How this local rate is calculated

Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 58558 in Wyoming**.

PPRRVU2026_Oct_nonQPP.csv

6,567

Code
58558
Physician work
4.07
Practice expense
33.23
Malpractice
0.72

GPCI2026.csv

112

Locality
Wyoming**
Physician work
1.000
Practice expense
1.000
Malpractice
0.740
Office / nonfacility calculation for 58558 in Wyoming**
ComponentRVULocality factorAdjusted
Physician work4.07× 1.0004.0700
Practice expense33.23× 1.00033.2300
Malpractice0.72× 0.7400.5328
Total RVUs37.8328
Conversion factor× 33.4009

Office / nonfacility rate, Wyoming**$1263.65

Open 58558 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work4.071
Practice expense33.231
Malpractice0.720.74

(4.07 × 1 + 33.23 × 1 + 0.72 × 0.74) × $33.4009 = $1263.65

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work4.071
Practice expense1.331
Malpractice0.720.74

(4.07 × 1 + 1.33 × 1 + 0.72 × 0.74) × $33.4009 = $198.16

The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.

How this rate has changed

58558 · Office / nonfacility

$1263.65

Effective 2026-10-01

The base rate is $62.47 higher than on 2025-10-01, moving from $1201.18 to $1263.65 (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

    $1201.18changed to$1263.65

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 4.17 changed to 4.07
    • Practice expense RVU 32.44 changed to 33.23
    • Malpractice RVU 0.71 changed to 0.72
    • Malpractice GPCI 0.739 changed to 0.740

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: $1201.18

    Held through RVU25B, RVU25C, RVU25D.

Explore release dates and calculate this code in an earlier period →

Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.

Inspect every release and its CMS source
Effective fromOffice / nonfacilityFacilityCMS release
2026-10-01$1263.65$198.16RVU26D
2026-07-01$1263.65$198.16RVU26C
2026-04-01$1263.65$198.16RVU26B
2026-01-01$1263.65$198.16RVU26A
2025-10-01$1201.18$218.49RVU25D
2025-07-01$1201.18$218.49RVU25C
2025-04-01$1201.18$218.49RVU25B
2025-01-01$1201.18$218.49RVU25A

58558 billing questions

When should I report this instead of diagnostic hysteroscopy?

Report 58558 when the hysteroscopy includes endometrial sampling or polyp removal. Diagnostic inspection alone is represented by 58555.

Can curettage be reported separately?

Curettage performed with this hysteroscopic service is included in the code. The descriptor covers the service with or without curettage.

Can I report a separate diagnostic hysteroscopy during the same session?

Do not report diagnostic hysteroscopy as a separate service when it is part of the operative hysteroscopy. CMS endoscopy family pricing applies when related endoscopies are performed together.

Should modifier 50 be used for bilateral findings?

No. CMS identifies bilateral adjustment as inappropriate for this code.

What should the operative note support?

Document the clinical indication, hysteroscopic findings, whether endometrial tissue was sampled or a polyp was removed, and any curettage performed.

Are assistant or co-surgeon services payable?

CMS does not pay an assistant at surgery for this service. Co-surgeons are permitted; team surgery is not.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.

Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.

RVUs for 58558PPRRVU2026_Oct_nonQPP.csv, line 6,567 (RVU26D)
Geographic factors for Wyoming**GPCI2026.csv, line 112 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet