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CPT code 58110: Endometrial biopsy, performed with colposcopy2026 Medicare rate & RVUs in San Benito County, CA

Reports endometrial tissue sampling performed during a colposcopy when the uterine lining is evaluated separately from cervical or vaginal tissue.

CMS RVU26DEffective Oct 1, 2026One payment locality671 Medicare services in 2024

In San Benito County, CA, Medicare pays $61.14 for 58110 in the office and $38.50 when it’s performed in a hospital or facility.

$61.14Office (non-facility)
$38.50Hospital or facility
+19.6%vs the national office rate ($51.10)

Check a contract rate as a % of Medicare · 58110 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 58110 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in San Benito County, CA
  2. What 58110 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 58110 covers

This add-on represents a sample of the uterine lining obtained while the clinician performs a colposcopy. An OB-GYN or other qualified clinician may use an office endometrial sampler to investigate a uterine concern, such as abnormal bleeding, during a visit that also evaluates an abnormal cervical screening result. The endometrial specimen is distinct from tissue taken from the cervix or endocervical canal during colposcopy.

Report 58110 only with the primary colposcopy procedure; use 58100 for endometrial sampling performed without colposcopy. The record should identify the colposcopy and separately document endometrial sampling, its indication, method, and specimen. Cervical biopsy or endocervical curettage alone does not represent sampling of the uterine lining. CMS pays this add-on within the primary procedure's global period, so payment is associated with that primary service's global period.

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 San Benito County, CA compares for 58110

Across 109 of 109 payment localities, the office rate for 58110 runs from $45.82 in Arkansas to $62.92 in Alaska. San Benito County, CA pays $61.14. The RVUs are the same everywhere; the geographic indexes change the dollars.

58110 in San Benito County, CA vs other payment areas
  1. San Benito County, CA · this page$61.14
  2. Bakersfield, CA · California$51.80−$9.34
  3. Chico, CA · California$51.41−$9.73
  4. El Centro, CA · California$51.44−$9.70
  5. Fresno, CA · California$51.41−$9.73
  6. Hanford, CA · California$51.41−$9.73
  7. Los Angeles, CA · California$54.47−$6.67

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

Every other payment area

58110 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$51.41$34.21
Merced, CACalifornia$51.41$34.21
Modesto, CACalifornia$51.41$34.21
Napa, CACalifornia$57.18$36.49
Oxnard, CACalifornia$53.93$35.38
Redding, CACalifornia$51.41$34.21
Rest of CaliforniaCalifornia$51.41$34.21
Riverside, CACalifornia$52.92$35.71

58110 rates by state

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

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.

$45.82

$62.92

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

View every state and territory as a table
58110 office rate range by state
State / territoryOffice rate rangeLocalities
AK$62.921
AL$46.401
AR$45.821
AZ$49.771
CA$51.41–$61.1429
CO$51.751
CT$54.231
DC$56.791
DE$50.501
FL$52.51–$59.133
GA$49.69–$52.462
GU$52.061
HI$52.061
IA$46.471
ID$46.931
IL$51.88–$57.444
IN$47.141
KS$46.731
KY$48.331
LA$48.45–$50.482
MA$51.69–$55.762
MD$51.23–$56.793
ME$47.63–$49.192
MI$49.85–$53.562
MN$48.431
MO$48.03–$50.093
MS$46.911
MT$51.091
NC$47.981
ND$48.331
NE$46.551
NH$51.401
NJ$54.53–$56.422
NM$50.271
NV$50.341
NY$48.65–$60.755
OH$49.281
OK$47.771
OR$49.63–$52.682
PA$49.09–$53.332
PR$51.271
RI$51.781
SC$48.781
SD$48.001
TN$46.991
TX$48.85–$52.918
UT$49.341
VA$49.37–$56.792
VI$51.271
VT$48.581
WA$51.44–$56.352
WI$46.971
WV$50.321
WY$49.891

See 58110 in every payment locality

How the 58110 rate is calculated

Each of 58110’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 · 58110

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.75

0.75 RVUs× 1.000 GPCI

Practice expense0.64

0.64 RVUs× 1.000 GPCI

Malpractice0.14

0.14 RVUs× 1.000 GPCI

Adjusted RVUs

1.5300

Conversion factor

$33.4009

Medicare rate

$51.10

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

The exact San Benito County, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,517

Code
58110
Physician work
0.75
Practice expense
0.64
Malpractice
0.14

GPCI2026.csv

26

Locality
San Benito County, CA
Physician work
1.110
Practice expense
1.442
Malpractice
0.536
Office calculation for 58110 in San Benito County, CA
ComponentRVULocality factorAdjusted
Physician work0.75× 1.1100.8325
Practice expense0.64× 1.4420.9229
Malpractice0.14× 0.5360.0750
Total RVUs1.8304
Conversion factor× 33.4009

Office rate, San Benito County, CA$61.14

Office: (0.75 × 1.11 + 0.64 × 1.442 + 0.14 × 0.536) × $33.4009 = $61.14

Facility: (0.75 × 1.11 + 0.17 × 1.442 + 0.14 × 0.536) × $33.4009 = $38.50

Open 58110 in the RVU calculator

Payment rules and modifiers for 58110

The CMS indicators that decide how 58110 is paid alongside other services.

CMS payment indicators · 58110

Endometrial biopsy, performed with colposcopy

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/technical0Physician service: no professional/technical split.

Codes related to 58110

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 58110
CodeHow it relatesOffice range, San Benito County, CA
Primary code
57452Colposcopy, cervix, no tissue samplingPrimary cervical colposcopy procedure that may accompany endometrial sampling.$157.04
57454Cervical colposcopy, biopsy and endocervical curettagePrimary colposcopy with cervical biopsy and endocervical curettage.$202.10
57455Cervical biopsy, colposcopy-guided biopsyPrimary colposcopy with cervical biopsy.$199.74
57456Cervical colposcopy, endocervical curettagePrimary colposcopy with endocervical curettage.$187.27
Used instead
58100Endometrial biopsy, without cervical dilationEndometrial sampling when performed without colposcopy.$122.16

How 58110 has changed in San Benito County, CA

58110 · Office / nonfacility

$61.14

Effective 2026-10-01

The base rate is $3.54 higher than on 2025-10-01, moving from $57.60 to $61.14 (6.1%).

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

    $57.60changed to$61.14

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.77 changed to 0.75
    • Practice expense RVU 0.60 changed to 0.64
    • Malpractice RVU 0.13 changed to 0.14
    • Work GPCI 1.100 changed to 1.110
    • Practice expense GPCI 1.435 changed to 1.442
    • Malpractice GPCI 0.560 changed to 0.536

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $59.76changed to$57.60

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.61 changed to 0.60

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $58.78changed to$59.76

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $59.65changed to$58.78

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.60 changed to 0.61
    • Malpractice RVU 0.12 changed to 0.13
    • Work GPCI 1.098 changed to 1.100
    • Practice expense GPCI 1.409 changed to 1.435
    • Malpractice GPCI 0.579 changed to 0.560

  5. January 1, 2023

    RVU23A

    $59.92changed to$59.65

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.59 changed to 0.60
    • Work GPCI 1.096 changed to 1.098
    • Practice expense GPCI 1.383 changed to 1.409
    • Malpractice GPCI 0.597 changed to 0.579

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $59.21changed to$59.92

    • Conversion factor 34.8931 changed to 34.6062
    • Malpractice RVU 0.13 changed to 0.12
    • Work GPCI 1.084 changed to 1.096
    • Practice expense GPCI 1.330 changed to 1.383

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $58.61changed to$59.21

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 0.57 changed to 0.59
    • Malpractice RVU 0.12 changed to 0.13
    • Work GPCI 1.072 changed to 1.084
    • Practice expense GPCI 1.279 changed to 1.330
    • Malpractice GPCI 0.580 changed to 0.597

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $56.16changed to$58.61

    • Conversion factor 36.0391 changed to 36.0896
    • Malpractice RVU 0.10 changed to 0.12
    • Work GPCI 1.052 changed to 1.072
    • Practice expense GPCI 1.214 changed to 1.279
    • Malpractice GPCI 0.562 changed to 0.580

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $51.89changed to$56.16

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.50 changed to 0.57
    • Work GPCI 1.041 changed to 1.052
    • Practice expense GPCI 1.167 changed to 1.214

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $50.58changed to$51.89

    • Conversion factor 35.8887 changed to 35.9996
    • Malpractice RVU 0.09 changed to 0.10
    • Work GPCI 1.031 changed to 1.041
    • Practice expense GPCI 1.121 changed to 1.167
    • Malpractice GPCI 0.610 changed to 0.562

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$50.58

    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$61.14$38.50RVU26D
2026-07-01$61.14$38.50RVU26C
2026-04-01$61.14$38.50RVU26B
2026-01-01$61.14$38.50RVU26A
2025-10-01$57.60$44.14RVU25D
2025-07-01$57.60$44.14RVU25C
2025-04-01$57.60$44.14RVU25B
2025-01-01$57.60$44.14RVU25A
2024-10-01$59.76$44.95RVU24D
2024-07-01$59.76$44.95RVU24C
2024-04-01$59.76$44.95RVU24B
2024-03-09$59.76$44.95RVU24AR
2024-01-01$58.78$44.21RVU24A
2023-10-01$59.65$45.33RVU23D
2023-07-01$59.65$45.33RVU23C
2023-04-01$59.65$45.33RVU23B
2023-01-01$59.65$45.33RVU23A
2022-10-01$59.92$46.04RVU22D
2022-07-01$59.92$46.04RVU22C
2022-04-01$59.92$46.04RVU22B
2022-01-01$59.92$46.04RVU22A
2021-10-01$59.21$45.75RVU21D
2021-07-01$59.21$45.75RVU21C
2021-04-01$59.21$45.75RVU21B
2021-01-01$59.21$45.75RVU21A
2020-10-01$58.61$46.15RVU20D
2020-07-01$58.61$46.15RVU20C
2020-04-01$58.61$46.15RVU20B
2020-01-01$58.61$46.15RVU20A
2019-10-01$56.16$44.34RVU19D
2019-07-01$56.16$44.34RVU19C
2019-04-01$56.16$44.34RVU19B
2019-01-01$56.16$44.34RVU19A
2018-10-01$51.89$43.48RVU18D
2018-07-01$51.89$43.48RVU18C
2018-04-01$51.89$43.48RVU18B
2018-01-01$51.89$43.48RVU18AR1
2017-10-01$50.58$42.93RVU17D
2017-07-01$50.58$42.93RVU17C
2017-04-01$50.58$42.93RVU17B
2017-01-01$50.58$42.93RVU17A
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 58110 for an earlier date of service

Where the San Benito County, CA rate applies

San Benito County, CA is a Medicare payment area, not a city. Our Census mapping connects it to 5 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • 58110 in Aromas · multiple payment areas
  • Hollister
  • Ridgemark
  • San Juan Bautista
  • Tres Pinos

Browse all communities in California

58110 billing questions

When should 58110 be reported instead of 58100?

Report 58110 when endometrial sampling is performed in conjunction with a colposcopy. Use 58100 for endometrial sampling performed without colposcopy.

Does a cervical biopsy or endocervical curettage support 58110?

No. The add-on represents sampling of the uterine lining; cervical biopsy and endocervical curettage sample different sites.

Which primary procedure is reported with 58110?

Report it with the appropriate primary colposcopy procedure. The add-on is paid within that primary procedure's global period.

What documentation supports 58110?

Document the colposcopy and the separate endometrial sampling, including the indication, sampling method, and uterine lining specimen.

Can 58110 be reported for a stand-alone endometrial biopsy?

No. This is an add-on for endometrial sampling performed with colposcopy; 58100 is the relevant code for sampling without colposcopy.

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 58110PPRRVU2026_Oct_nonQPP.csv, line 6,517 (RVU26D)
Geographic factors for San Benito County, CAGPCI2026.csv, line 26 (RVU26D)

Open CMS sourceHow we calculate rates

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