CPT code 45305: Proctosigmoidoscopy, rigid scope with biopsy2026 Medicare rate & RVUs in Vermont

Reports rigid examination of the rectum and distal sigmoid with tissue sampling to evaluate abnormal mucosa, a lesion, or another finding.

CMS RVU26DEffective Oct 1, 2026One payment locality351 Medicare services in 2024

In Vermont, Medicare pays $193.56 for 45305 in the office and $65.59 when it’s performed in a hospital or facility.

$193.56Office (non-facility)
$65.59Hospital or facility
−2.4%vs the national office rate ($198.40)

Check a contract rate as a % of Medicare · 45305 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 45305 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Vermont
  2. What 45305 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 45305 covers

The clinician advances a rigid proctosigmoidoscope to inspect the rectum and distal sigmoid and takes one or more tissue samples during the examination. Common reasons include sampling abnormal mucosa, an ulcer, or a suspicious lesion. Gastroenterologists and colorectal surgeons may perform the procedure in an office or a facility-based endoscopy setting. The biopsy is part of this service; the code covers obtaining the sample, not the laboratory examination of the tissue.

Choose this code when the documented procedure uses a rigid scope and includes biopsy. A diagnostic rigid examination without biopsy is coded differently; a flexible sigmoidoscopy with biopsy is a different service. Record the scope type, examination performed, and biopsy site or sites. 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. Medicare does not pay for an assistant at surgery, and co-surgeon and team-surgery billing 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 Vermont compares for 45305

Across 109 of 109 payment localities, the office rate for 45305 runs from $173.40 in Arkansas to $267.62 in San Benito County, CA. Vermont pays $193.56. The RVUs are the same everywhere; the geographic indexes change the dollars.

45305 in Vermont vs other payment areas
  1. Vermont · this page$193.56
  2. Los Angeles, CA · California$225.93+$32.37
  3. Washington, DC area · District of Columbia$228.64+$35.08
  4. Miami, FL · Florida$214.94+$21.38
  5. Chicago, IL · Illinois$208.09+$14.53
  6. Manhattan, NY · New York$229.71+$36.15
  7. Alaska · Alaska$224.14+$30.58

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

Every other payment area

45305 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$176.21$63.11
ArkansasArkansas$173.40$62.37
ArizonaArizona$192.66$67.40
Bakersfield, CACalifornia$211.31$69.64
Chico, CACalifornia$210.75$69.08
El Centro, CACalifornia$210.79$69.11
Fresno, CACalifornia$210.75$69.08
Hanford, CACalifornia$210.75$69.08

45305 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.

$173.40

$239.19

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

View every state and territory as a table
45305 office rate range by state
State / territoryOffice rate rangeLocalities
AK$224.141
AL$176.211
AR$173.401
AZ$192.661
CA$210.75–$267.6229
CO$207.261
CT$212.431
DC$228.641
DE$196.061
FL$194.97–$214.943
GA$183.02–$202.332
GU$216.731
HI$216.731
IA$181.261
ID$182.541
IL$188.74–$208.094
IN$183.701
KS$180.271
KY$180.701
LA$180.37–$190.212
MA$205.82–$229.142
MD$200.08–$228.643
ME$183.53–$194.552
MI$185.84–$197.582
MN$198.171
MO$176.93–$191.013
MS$175.211
MT$198.391
NC$185.651
ND$194.431
NE$182.361
NH$203.891
NJ$214.74–$225.902
NM$186.941
NV$197.441
NY$188.70–$235.695
OH$185.031
OK$180.401
OR$195.80–$214.422
PA$185.38–$206.692
PR$200.001
RI$203.481
SC$185.671
SD$193.971
TN$181.271
TX$184.04–$206.668
UT$188.461
VA$193.81–$228.642
VI$200.001
VT$193.561
WA$205.47–$234.082
WI$187.301
WV$181.071
WY$196.661

See 45305 in every payment locality

How the 45305 rate is calculated

Each of 45305’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 · 45305

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.12

1.12 RVUs× 1.000 GPCI

Practice expense4.62

4.62 RVUs× 1.000 GPCI

Malpractice0.20

0.20 RVUs× 1.000 GPCI

Adjusted RVUs

5.9400

Conversion factor

$33.4009

Medicare rate

$198.40

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

The exact Vermont inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,489

Code
45305
Physician work
1.12
Practice expense
4.62
Malpractice
0.20

GPCI2026.csv

105

Locality
Vermont
Physician work
1.000
Practice expense
0.990
Malpractice
0.506
Office calculation for 45305 in Vermont
ComponentRVULocality factorAdjusted
Physician work1.12× 1.0001.1200
Practice expense4.62× 0.9904.5738
Malpractice0.20× 0.5060.1012
Total RVUs5.7950
Conversion factor× 33.4009

Office rate, Vermont$193.56

Office: (1.12 × 1 + 4.62 × 0.99 + 0.2 × 0.506) × $33.4009 = $193.56

Facility: (1.12 × 1 + 0.75 × 0.99 + 0.2 × 0.506) × $33.4009 = $65.59

Open 45305 in the RVU calculator

Payment rules and modifiers for 45305

The CMS indicators that decide how 45305 is paid alongside other services.

CMS payment indicators · 45305

Proctosigmoidoscopy, rigid scope with biopsy

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

45305 without 51 · national office

$198.40

Proctosigmoidoscopy, rigid scope with biopsy

45305-51 · Second procedure: 50%

$99.20

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 45305 has changed in Vermont

45305 · Office / nonfacility

$193.56

Effective 2026-10-01

The base rate is $25.17 higher than on 2025-10-01, moving from $168.39 to $193.56 (14.9%).

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

    $168.39changed to$193.56

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.15 changed to 1.12
    • Practice expense RVU 3.98 changed to 4.62
    • Practice expense GPCI 0.993 changed to 0.990
    • Malpractice GPCI 0.518 changed to 0.506

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $176.92changed to$168.39

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.09 changed to 3.98

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $174.03changed to$176.92

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $182.34changed to$174.03

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.14 changed to 4.09
    • Malpractice RVU 0.19 changed to 0.20
    • Practice expense GPCI 0.997 changed to 0.993
    • Malpractice GPCI 0.543 changed to 0.518
  5. January 1, 2023

    RVU23A

    $188.53changed to$182.34

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.18 changed to 4.14
    • Malpractice RVU 0.20 changed to 0.19
    • Practice expense GPCI 1.001 changed to 0.997
    • Malpractice GPCI 0.569 changed to 0.543

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $185.91changed to$188.53

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 4.06 changed to 4.18

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $165.18changed to$185.91

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 3.29 changed to 4.06
    • Malpractice RVU 0.19 changed to 0.20
    • Practice expense GPCI 1.008 changed to 1.001
    • Malpractice GPCI 0.582 changed to 0.569

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $156.42changed to$165.18

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 3.02 changed to 3.29
    • Malpractice RVU 0.21 changed to 0.19
    • Practice expense GPCI 1.015 changed to 1.008
    • Malpractice GPCI 0.595 changed to 0.582

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $146.38changed to$156.42

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 2.75 changed to 3.02

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $143.96changed to$146.38

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 2.70 changed to 2.75
    • Practice expense GPCI 1.010 changed to 1.015
    • Malpractice GPCI 0.639 changed to 0.595

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $197.04changed to$143.96

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 1.25 changed to 1.15
    • Practice expense RVU 4.08 changed to 2.70
    • Malpractice RVU 0.23 changed to 0.21
    • Practice expense GPCI 1.004 changed to 1.010
    • Malpractice GPCI 0.682 changed to 0.639

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $198.59changed to$197.04

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 4.11 changed to 4.08
    • Malpractice RVU 0.22 changed to 0.23

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $197.60changed to$198.59

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $197.04changed to$197.60

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 4.09 changed to 4.11
    • Practice expense GPCI 1.006 changed to 1.004
    • Malpractice GPCI 0.618 changed to 0.682

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    No ratechanged to$197.04

    Held through RVU14B, RVU14C, RVU14D.

  16. 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$193.56$65.59RVU26D
2026-07-01$193.56$65.59RVU26C
2026-04-01$193.56$65.59RVU26B
2026-01-01$193.56$65.59RVU26A
2025-10-01$168.39$67.85RVU25D
2025-07-01$168.39$67.85RVU25C
2025-04-01$168.39$67.85RVU25B
2025-01-01$168.39$67.85RVU25A
2024-10-01$176.92$69.16RVU24D
2024-07-01$176.92$69.16RVU24C
2024-04-01$176.92$69.16RVU24B
2024-03-09$176.92$69.16RVU24AR
2024-01-01$174.03$68.04RVU24A
2023-10-01$182.34$70.17RVU23D
2023-07-01$182.34$70.17RVU23C
2023-04-01$182.34$70.17RVU23B
2023-01-01$182.34$70.17RVU23A
2022-10-01$188.53$71.10RVU22D
2022-07-01$188.53$71.10RVU22C
2022-04-01$188.53$71.10RVU22B
2022-01-01$188.53$71.10RVU22A
2021-10-01$185.91$71.34RVU21D
2021-07-01$185.91$71.34RVU21C
2021-04-01$185.91$71.34RVU21B
2021-01-01$185.91$71.34RVU21A
2020-10-01$165.18$73.14RVU20D
2020-07-01$165.18$73.14RVU20C
2020-04-01$165.18$73.14RVU20B
2020-01-01$165.18$73.14RVU20A
2019-10-01$156.42$73.38RVU19D
2019-07-01$156.42$73.38RVU19C
2019-04-01$156.42$73.38RVU19B
2019-01-01$156.42$73.38RVU19A
2018-10-01$146.38$74.03RVU18D
2018-07-01$146.38$74.03RVU18C
2018-04-01$146.38$74.03RVU18B
2018-01-01$146.38$74.03RVU18AR1
2017-10-01$143.96$74.00RVU17D
2017-07-01$143.96$74.00RVU17C
2017-04-01$143.96$74.00RVU17B
2017-01-01$143.96$74.00RVU17A
2016-10-01$197.04$79.13RVU16D
2016-07-01$197.04$79.13RVU16C
2016-04-01$197.04$79.13RVU16B
2016-01-01$197.04$79.13RVU16A
2015-10-01$198.59$79.89RVU15D
2015-07-01$198.59$79.89RVU15C
2015-04-01$197.60$79.49RVU15B
2015-01-01$197.60$79.49RVU15A
2014-10-01$197.04$78.84RVU14D
2014-07-01$197.04$78.84RVU14C
2014-04-01$197.04$78.84RVU14B
2014-01-01$197.04$78.84RVU14A
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 45305 for an earlier date of service

Where the Vermont rate applies

Vermont is a Medicare payment area, not a city. Our Census mapping connects it to 180 cities and communities in Vermont. Some span more than one payment area; confirm with the service ZIP.

  • Albany
  • Alburgh
  • Algiers
  • Arlington
  • Ascutney
  • Bakersfield
  • Barnet
  • Barre

Browse all communities in Vermont

45305 billing questions

How does this differ from 45300?

Use 45305 when the rigid proctosigmoidoscopy includes tissue sampling. Code 45300 describes the diagnostic rigid examination without biopsy.

Can I report this for a flexible sigmoidoscopy biopsy?

No. This code is for a rigid proctosigmoidoscopy with biopsy; 45331 is the corresponding flexible sigmoidoscopy biopsy service.

Is biopsy included in the procedure?

Yes. Obtaining the biopsy specimen is included in 45305. The tissue laboratory examination is a separate service when performed and reported by the appropriate laboratory provider.

Should modifier 50 be used?

No. CMS identifies bilateral adjustment as inappropriate for this service, so do not use modifier 50.

What happens when another related endoscopy is performed in the same session?

CMS endoscopy family pricing applies when related endoscopies are performed together. Document each service performed and do not assume each procedure receives independent full 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 45305PPRRVU2026_Oct_nonQPP.csv, line 5,489 (RVU26D)
Geographic factors for VermontGPCI2026.csv, line 105 (RVU26D)

Open CMS sourceHow we calculate rates

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