CPT code 43252: Optical endomicroscopy, during upper endoscopy2026 Medicare rate & RVUs in Sacramento, CA

Reports optical endomicroscopic imaging performed during upper endoscopy to assess gastrointestinal mucosa at microscopic resolution in real time.

CMS RVU26DEffective Oct 1, 2026One payment locality4.5K Medicare services in 2024

In Sacramento, CA, Medicare pays $418.97 for 43252 in the office and $154.83 when it’s performed in a hospital or facility.

$418.97Office (non-facility)
$154.83Hospital or facility
+11.1%vs the national office rate ($377.10)

Check a contract rate as a % of Medicare · 43252 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 43252 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Sacramento, CA
  2. What 43252 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 43252 covers

During an upper gastrointestinal endoscopy, the endoscopist uses optical endomicroscopy to examine selected mucosal areas at microscopic resolution while viewing the tissue in real time. The technique can help characterize suspicious mucosal changes, including areas evaluated during Barrett esophagus surveillance. Gastroenterologists typically perform it in a hospital or ambulatory endoscopy setting as part of an EGD; it is not a tissue specimen examination by pathology.

Report this code when optical endomicroscopy is performed during the EGD, and document the areas examined and the imaging service. When related endoscopies are performed together, CMS applies endoscopy-family pricing rather than pricing each as an unrelated standalone procedure. The 0-day global period includes same-day preoperative and postoperative care. CMS does not pay an assistant at surgery for this service; co-surgeons and team surgery are not permitted. Modifier 50 is inappropriate for this code.

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 Sacramento, CA compares for 43252

Across 109 of 109 payment localities, the office rate for 43252 runs from $333.51 in Arkansas to $501.13 in San Benito County, CA. Sacramento, CA pays $418.97. The RVUs are the same everywhere; the geographic indexes change the dollars.

43252 in Sacramento, CA vs other payment areas
  1. Sacramento, CA · this page$418.97
  2. Bakersfield, CA · California$400.17−$18.80
  3. Chico, CA · California$399.13−$19.84
  4. El Centro, CA · California$399.18−$19.79
  5. Fresno, CA · California$399.13−$19.84
  6. Hanford, CA · California$399.13−$19.84
  7. Los Angeles, CA · California$426.33+$7.36

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

Every other payment area

43252 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$399.13$150.19
Merced, CACalifornia$399.13$150.19
Modesto, CACalifornia$399.13$150.19
Napa, CACalifornia$462.93$163.58
Oxnard, CACalifornia$424.33$155.86
Redding, CACalifornia$399.13$150.19
Rest of CaliforniaCalifornia$399.13$150.19
Riverside, CACalifornia$402.93$154.00

43252 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.

$333.51

$450.13

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

View every state and territory as a table
43252 office rate range by state
State / territoryOffice rate rangeLocalities
AK$437.591
AL$338.411
AR$333.511
AZ$367.081
CA$399.13–$501.1329
CO$392.901
CT$402.191
DC$431.491
DE$373.171
FL$371.15–$405.993
GA$350.30–$384.042
GU$409.011
HI$409.011
IA$347.191
ID$349.431
IL$360.29–$394.264
IN$351.461
KS$345.491
KY$346.261
LA$345.68–$362.822
MA$390.52–$431.932
MD$380.33–$431.493
ME$351.17–$370.362
MI$355.21–$375.712
MN$376.661
MO$339.69–$364.213
MS$336.671
MT$377.071
NC$354.861
ND$370.151
NE$349.121
NH$386.661
NJ$406.83–$426.992
NM$357.131
NV$375.411
NY$360.18–$444.115
OH$353.801
OK$345.721
OR$372.55–$405.492
PA$354.41–$392.112
PR$379.881
RI$386.541
SC$354.911
SD$369.331
TN$347.221
TX$352.07–$391.558
UT$359.771
VA$369.09–$431.492
VI$379.881
VT$368.631
WA$389.81–$440.822
WI$357.711
WV$346.911
WY$374.061

See 43252 in every payment locality

How the 43252 rate is calculated

Each of 43252’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 · 43252

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.89

2.89 RVUs× 1.000 GPCI

Practice expense8.05

8.05 RVUs× 1.000 GPCI

Malpractice0.35

0.35 RVUs× 1.000 GPCI

Adjusted RVUs

11.2900

Conversion factor

$33.4009

Medicare rate

$377.10

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

The exact Sacramento, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,181

Code
43252
Physician work
2.89
Practice expense
8.05
Malpractice
0.35

GPCI2026.csv

21

Locality
Sacramento, CA
Physician work
1.036
Practice expense
1.163
Malpractice
0.536
Office calculation for 43252 in Sacramento, CA
ComponentRVULocality factorAdjusted
Physician work2.89× 1.0362.9940
Practice expense8.05× 1.1639.3622
Malpractice0.35× 0.5360.1876
Total RVUs12.5438
Conversion factor× 33.4009

Office rate, Sacramento, CA$418.97

Office: (2.89 × 1.036 + 8.05 × 1.163 + 0.35 × 0.536) × $33.4009 = $418.97

Facility: (2.89 × 1.036 + 1.25 × 1.163 + 0.35 × 0.536) × $33.4009 = $154.83

Open 43252 in the RVU calculator

Payment rules and modifiers for 43252

The CMS indicators that decide how 43252 is paid alongside other services.

CMS payment indicators · 43252

Optical endomicroscopy, during upper endoscopy

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures3Endoscopy family rules apply.
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

43252 without 51 · national office

$377.10

Optical endomicroscopy, during upper endoscopy

43252-51 · Second procedure: 50%

$188.55

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 43252 has changed in Sacramento, CA

43252 · Office / nonfacility

$418.97

Effective 2026-10-01

The base rate is $59.55 higher than on 2025-10-01, moving from $359.42 to $418.97 (16.6%).

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

    $359.42changed to$418.97

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 2.96 changed to 2.89
    • Practice expense RVU 6.79 changed to 8.05
    • Malpractice RVU 0.36 changed to 0.35
    • Work GPCI 1.034 changed to 1.036
    • Practice expense GPCI 1.156 changed to 1.163
    • Malpractice GPCI 0.560 changed to 0.536

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $372.57changed to$359.42

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 6.86 changed to 6.79

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $366.49changed to$372.57

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $370.53changed to$366.49

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 6.85 changed to 6.86
    • Malpractice RVU 0.35 changed to 0.36
    • Work GPCI 1.036 changed to 1.034
    • Practice expense GPCI 1.119 changed to 1.156
    • Malpractice GPCI 0.579 changed to 0.560
  5. January 1, 2023

    RVU23A

    $376.34changed to$370.53

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 7.03 changed to 6.85
    • Malpractice RVU 0.34 changed to 0.35
    • Work GPCI 1.038 changed to 1.036
    • Practice expense GPCI 1.081 changed to 1.119
    • Malpractice GPCI 0.597 changed to 0.579

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $372.36changed to$376.34

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.86 changed to 7.03
    • Work GPCI 1.036 changed to 1.038
    • Practice expense GPCI 1.079 changed to 1.081

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $348.41changed to$372.36

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.92 changed to 6.86
    • Malpractice RVU 0.37 changed to 0.34
    • Work GPCI 1.033 changed to 1.036
    • Practice expense GPCI 1.078 changed to 1.079
    • Malpractice GPCI 0.580 changed to 0.597

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $337.66changed to$348.41

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.58 changed to 5.92
    • Malpractice RVU 0.42 changed to 0.37
    • Work GPCI 1.027 changed to 1.033
    • Practice expense GPCI 1.092 changed to 1.078
    • Malpractice GPCI 0.562 changed to 0.580

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $323.94changed to$337.66

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.28 changed to 5.58
    • Malpractice RVU 0.41 changed to 0.42
    • Work GPCI 1.025 changed to 1.027
    • Practice expense GPCI 1.086 changed to 1.092

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $319.69changed to$323.94

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 5.21 changed to 5.28
    • Work GPCI 1.024 changed to 1.025
    • Practice expense GPCI 1.080 changed to 1.086
    • Malpractice GPCI 0.610 changed to 0.562

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$319.69

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2014

    RVU14A

    No ratechanged toNo rate

    Held through RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.

  13. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$418.97$154.83RVU26D
2026-07-01$418.97$154.83RVU26C
2026-04-01$418.97$154.83RVU26B
2026-01-01$418.97$154.83RVU26A
2025-10-01$359.42$167.59RVU25D
2025-07-01$359.42$167.59RVU25C
2025-04-01$359.42$167.59RVU25B
2025-01-01$359.42$167.59RVU25A
2024-10-01$372.57$172.08RVU24D
2024-07-01$372.57$172.08RVU24C
2024-04-01$372.57$172.08RVU24B
2024-03-09$372.57$172.08RVU24AR
2024-01-01$366.49$169.28RVU24A
2023-10-01$370.53$172.21RVU23D
2023-07-01$370.53$172.21RVU23C
2023-04-01$370.53$172.21RVU23B
2023-01-01$370.53$172.21RVU23A
2022-10-01$376.34$173.95RVU22D
2022-07-01$376.34$173.95RVU22C
2022-04-01$376.34$173.95RVU22B
2022-01-01$376.34$173.95RVU22A
2021-10-01$372.36$174.32RVU21D
2021-07-01$372.36$174.32RVU21C
2021-04-01$372.36$174.32RVU21B
2021-01-01$372.36$174.32RVU21A
2020-10-01$348.41$178.40RVU20D
2020-07-01$348.41$178.40RVU20C
2020-04-01$348.41$178.40RVU20B
2020-01-01$348.41$178.40RVU20A
2019-10-01$337.66$179.85RVU19D
2019-07-01$337.66$179.85RVU19C
2019-04-01$337.66$179.85RVU19B
2019-01-01$337.66$179.85RVU19A
2018-10-01$323.94$179.29RVU18D
2018-07-01$323.94$179.29RVU18C
2018-04-01$323.94$179.29RVU18B
2018-01-01$323.94$179.29RVU18AR1
2017-10-01$319.69$179.00RVU17D
2017-07-01$319.69$179.00RVU17C
2017-04-01$319.69$179.00RVU17B
2017-01-01$319.69$179.00RVU17A
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
2013-10-01Contractor-pricedContractor-pricedRVU13D
2013-07-01Contractor-pricedContractor-pricedRVU13C
2013-04-01Contractor-pricedContractor-pricedRVU13B
2013-01-01Contractor-pricedContractor-pricedRVU13AR

Price 43252 for an earlier date of service

Where the Sacramento, CA rate applies

Sacramento, CA is a Medicare payment area, not a city. Our Census mapping connects it to 89 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Folsom
  • Roseville
  • Sacramento
  • Alta
  • Antelope
  • Arden-Arcade
  • Auburn
  • Auburn Lake Trails

Browse all communities in California

43252 billing questions

How is this different from EGD with biopsy, 43239?

This code describes real-time optical microscopic imaging of mucosa. Code 43239 describes obtaining tissue for histologic examination; imaging alone is not a biopsy.

Can biopsy or lesion treatment also be reported at the same session?

A separately performed biopsy or therapeutic service may have its own code, but document the distinct service and apply applicable coding and endoscopy-family pricing rules.

Should modifier 50 be appended?

No. CMS identifies bilateral adjustment as inapplicable and modifier 50 as inappropriate for this service.

Is an assistant surgeon payable?

CMS lists a statutory restriction on assistant-at-surgery payment for this code. Co-surgeons and team surgery are not permitted.

What same-day care is included in the global period?

The 0-day global period includes same-day preoperative and postoperative care.

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 43252PPRRVU2026_Oct_nonQPP.csv, line 5,181 (RVU26D)
Geographic factors for Sacramento, CAGPCI2026.csv, line 21 (RVU26D)

Open CMS sourceHow we calculate rates

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