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CMS RVU26D · Effective 2026-10-01

46601 in Redding

Office / nonfacility

$173.89

Base rate per service

Facility setting

$85.67

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.

Anorectal endoscopy

About 46601: High-resolution diagnostic anoscopy

Reports high-resolution examination of the anal canal, with brushing or washing specimens when performed, for evaluating suspected anal dysplasia or other abnormalities.

A clinician uses an anoscope with high-resolution magnification to inspect the anal canal and identify abnormalities such as lesions suspicious for anal dysplasia. Brushing or washing specimens may be collected during the examination. Colorectal surgeons and other clinicians trained in high-resolution anoscopy commonly perform it in office or facility settings, including evaluation after abnormal anal cytology or in patients with HPV-related risk.

Select this code when high-resolution magnification is used and no biopsy is performed; specimen collection by brushing or washing is included when done. The record should support the indication, the high-resolution examination, findings, and any specimens collected. This has 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-surgeons and team surgery are not permitted.

CMS billing rules for 46601

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 not permitted.
Team surgery
Team surgery not permitted.

Where the value comes from

  • Work RVU1.56 · 31%
  • Practice expense (office) RVU3.20 · 64%
  • Malpractice RVU0.21 · 4%

2.2K

Medicare services in 2024 · #2385 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.

46601 compared with similar codes

Office rates for Redding, from the same CMS release.

46600

Diagnostic anoscopy

Standard visualization, optional washing

$138.38

Choose 46601 when the examination uses high-resolution magnification. 46600 describes diagnostic anoscopy without that feature.

46606

Anoscopy biopsy

Biopsy performed

$329.59

46606 is the biopsy option for anoscopy without high-resolution magnification. For high-resolution anoscopy with biopsy, consider 46607 instead.

46607

Anoscopy

High-resolution exam with biopsy

$241.67

Both involve high-resolution anoscopy; 46607 includes biopsy, while 46601 is used when no biopsy is performed.

The same code, a different location

How does Redding compare?

In Bakersfield, the office rate for 46601 is $174.51—$0.62 higher than the $173.89 rate in Redding. Both use the same code, release and participation basis.

46601 across payment areas

Same release and payment basis · bars start at $0

  1. Redding · This locality

    $173.89

  2. Bakersfield

    $174.51

    $0.62 higher than Redding

  3. Chico

    $173.89

    The same base rate than Redding

  4. El Centro

    $173.93

    $0.04 higher than Redding

  5. Fresno

    $173.89

    The same base rate than Redding

  6. Hanford-Corcoran

    $173.89

    The same base rate than Redding

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

    $185.34

    $11.45 higher than Redding

Other payment areas listed in California 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, 46601 ranges from $147.53 in Arkansas to $215.72 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

  • Madera

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Merced

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Modesto

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Napa

    California · 46601

    Office

    $199.82

    Facility

    $93.73

    $25.93 higher than Redding for the office setting.

  • Oxnard-Thousand Oaks-Ventura

    California · 46601

    Office

    $184.27

    Facility

    $89.12

    $10.38 higher than Redding for the office setting.

  • Rest Of California

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Riverside-San Bernardino-Ontario

    California · 46601

    Office

    $176.17

    Facility

    $87.95

    $2.28 higher than Redding for the office setting.

  • Sacramento-Roseville-Folsom

    California · 46601

    Office

    $182.05

    Facility

    $88.43

    $8.16 higher than Redding for the office setting.

  • Salinas

    California · 46601

    Office

    $181.36

    Facility

    $88.06

    $7.47 higher than Redding for the office setting.

  • San Diego-Chula Vista-Carlsbad

    California · 46601

    Office

    $185.30

    Facility

    $89.03

    $11.41 higher than Redding for the office setting.

  • San Francisco-Oakland-Berkeley (Marin Cnty)

    California · 46601

    Office

    $210.98

    Facility

    $97.48

    $37.09 higher than Redding for the office setting.

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

    California · 46601

    Office

    $210.74

    Facility

    $97.24

    $36.85 higher than Redding for the office setting.

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

    California · 46601

    Office

    $215.72

    Facility

    $99.65

    $41.83 higher than Redding for the office setting.

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

    California · 46601

    Office

    $214.75

    Facility

    $98.67

    $40.86 higher than Redding for the office setting.

  • San Luis Obispo-Paso Robles

    California · 46601

    Office

    $178.49

    Facility

    $86.81

    $4.60 higher than Redding for the office setting.

  • Santa Cruz-Watsonville

    California · 46601

    Office

    $186.82

    Facility

    $89.02

    $12.93 higher than Redding for the office setting.

  • Santa Maria-Santa Barbara

    California · 46601

    Office

    $181.95

    Facility

    $88.09

    $8.06 higher than Redding for the office setting.

  • Santa Rosa-Petaluma

    California · 46601

    Office

    $188.68

    Facility

    $89.83

    $14.79 higher than Redding for the office setting.

  • Stockton

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Vallejo

    California · 46601

    Office

    $199.48

    Facility

    $93.39

    $25.59 higher than Redding for the office setting.

  • Visalia

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Yuba City

    California · 46601

    Office

    $173.89

    Facility

    $85.67

    The same base rate than Redding for the office setting.

  • Dc + Md/Va Suburbs

    District of Columbia · 46601

    Office

    $188.63

    Facility

    $93.81

    $14.74 higher than Redding for the office setting.

  • Miami

    Florida · 46601

    Office

    $181.11

    Facility

    $97.31

    $7.22 higher than Redding for the office setting.

  • Chicago

    Illinois · 46601

    Office

    $175.98

    Facility

    $95.09

    $2.09 higher than Redding for the office setting.

  • Manhattan

    New York · 46601

    Office

    $190.76

    Facility

    $97.23

    $16.87 higher than Redding for the office setting.

  • Alaska*

    Alaska · 46601

    Office

    $195.85

    Facility

    $110.12

    $21.96 higher than Redding for the office setting.

  • Alabama

    Alabama · 46601

    Office

    $149.60

    Facility

    $79.16

    $24.29 lower than Redding for the office setting.

  • Arkansas

    Arkansas · 46601

    Office

    $147.53

    Facility

    $78.38

    $26.36 lower than Redding for the office setting.

  • Arizona

    Arizona · 46601

    Office

    $161.68

    Facility

    $83.68

    $12.21 lower than Redding for the office setting.

  • Colorado

    Colorado · 46601

    Office

    $171.93

    Facility

    $86.28

    $1.96 lower than Redding for the office setting.

  • Connecticut

    Connecticut · 46601

    Office

    $176.75

    Facility

    $90.05

    $2.86 higher than Redding for the office setting.

  • Delaware

    Delaware · 46601

    Office

    $164.27

    Facility

    $84.74

    $9.62 lower than Redding for the office setting.

  • Fort Lauderdale

    Florida · 46601

    Office

    $173.06

    Facility

    $91.52

    $0.83 lower than Redding for the office setting.

  • Rest Of Florida

    Florida · 46601

    Office

    $164.83

    Facility

    $87.87

    $9.06 lower than Redding for the office setting.

  • Atlanta

    Georgia · 46601

    Office

    $169.28

    Facility

    $87.49

    $4.61 lower than Redding for the office setting.

  • Rest Of Georgia

    Georgia · 46601

    Office

    $155.81

    Facility

    $84.00

    $18.08 lower than Redding for the office setting.

  • Hawaii, Guam

    Hawaii · 46601

    Office

    $177.69

    Facility

    $86.17

    $3.80 higher than Redding for the office setting.

  • Iowa

    Iowa · 46601

    Office

    $152.69

    Facility

    $79.03

    $21.20 lower than Redding for the office setting.

  • Idaho

    Idaho · 46601

    Office

    $153.76

    Facility

    $79.70

    $20.13 lower than Redding for the office setting.

  • East St. Louis

    Illinois · 46601

    Office

    $164.56

    Facility

    $90.51

    $9.33 lower than Redding for the office setting.

  • Rest Of Illinois

    Illinois · 46601

    Office

    $160.65

    Facility

    $87.16

    $13.24 lower than Redding for the office setting.

  • Suburban Chicago

    Illinois · 46601

    Office

    $174.67

    Facility

    $92.00

    $0.78 higher than Redding for the office setting.

  • Indiana

    Indiana · 46601

    Office

    $154.59

    Facility

    $79.97

    $19.30 lower than Redding for the office setting.

  • Kansas

    Kansas · 46601

    Office

    $152.26

    Facility

    $79.49

    $21.63 lower than Redding for the office setting.

  • Kentucky

    Kentucky · 46601

    Office

    $153.54

    Facility

    $81.98

    $20.35 lower than Redding for the office setting.

  • New Orleans

    Louisiana · 46601

    Office

    $160.65

    Facility

    $84.90

    $13.24 lower than Redding for the office setting.

  • Rest Of Louisiana

    Louisiana · 46601

    Office

    $153.42

    Facility

    $82.18

    $20.47 lower than Redding for the office setting.

  • Metropolitan Boston

    Massachusetts · 46601

    Office

    $188.10

    Facility

    $91.99

    $14.21 higher than Redding for the office setting.

  • Rest Of Massachusetts

    Massachusetts · 46601

    Office

    $171.08

    Facility

    $86.31

    $2.81 lower than Redding for the office setting.

  • Baltimore/Surr. Cntys

    Maryland · 46601

    Office

    $176.30

    Facility

    $89.93

    $2.41 higher than Redding for the office setting.

  • Rest Of Maryland

    Maryland · 46601

    Office

    $167.23

    Facility

    $85.77

    $6.66 lower than Redding for the office setting.

  • Rest Of Maine

    Maine · 46601

    Office

    $154.80

    Facility

    $80.74

    $19.09 lower than Redding for the office setting.

  • Southern Maine

    Maine · 46601

    Office

    $162.45

    Facility

    $82.68

    $11.44 lower than Redding for the office setting.

  • Detroit

    Michigan · 46601

    Office

    $167.07

    Facility

    $89.39

    $6.82 lower than Redding for the office setting.

  • Rest Of Michigan

    Michigan · 46601

    Office

    $157.61

    Facility

    $84.12

    $16.28 lower than Redding for the office setting.

  • Minnesota

    Minnesota · 46601

    Office

    $164.16

    Facility

    $81.33

    $9.73 lower than Redding for the office setting.

  • Metropolitan Kansas City

    Missouri · 46601

    Office

    $159.32

    Facility

    $83.74

    $14.57 lower than Redding for the office setting.

  • Metropolitan St. Louis

    Missouri · 46601

    Office

    $160.89

    Facility

    $84.25

    $13.00 lower than Redding for the office setting.

  • Rest Of Missouri

    Missouri · 46601

    Office

    $151.07

    Facility

    $81.68

    $22.82 lower than Redding for the office setting.

  • Mississippi

    Mississippi · 46601

    Office

    $149.32

    Facility

    $80.01

    $24.57 lower than Redding for the office setting.

  • Montana**

    Montana · 46601

    Office

    $165.99

    Facility

    $85.49

    $7.90 lower than Redding for the office setting.

  • North Carolina

    North Carolina · 46601

    Office

    $156.31

    Facility

    $81.21

    $17.58 lower than Redding for the office setting.

  • North Dakota**

    North Dakota · 46601

    Office

    $161.84

    Facility

    $81.34

    $12.05 lower than Redding for the office setting.

  • Nebraska

    Nebraska · 46601

    Office

    $153.41

    Facility

    $79.11

    $20.48 lower than Redding for the office setting.

  • New Hampshire

    New Hampshire · 46601

    Office

    $169.51

    Facility

    $85.71

    $4.38 lower than Redding for the office setting.

  • Northern Nj

    New Jersey · 46601

    Office

    $186.86

    Facility

    $93.49

    $12.97 higher than Redding for the office setting.

  • Rest Of New Jersey

    New Jersey · 46601

    Office

    $178.60

    Facility

    $90.70

    $4.71 higher than Redding for the office setting.

  • New Mexico

    New Mexico · 46601

    Office

    $158.54

    Facility

    $84.73

    $15.35 lower than Redding for the office setting.

  • Nevada**

    Nevada · 46601

    Office

    $164.94

    Facility

    $84.36

    $8.95 lower than Redding for the office setting.

  • Nyc Suburbs/Long Island

    New York · 46601

    Office

    $195.55

    Facility

    $99.84

    $21.66 higher than Redding for the office setting.

  • Poughkpsie/N Nyc Suburbs

    New York · 46601

    Office

    $179.97

    Facility

    $91.83

    $6.08 higher than Redding for the office setting.

  • Queens

    New York · 46601

    Office

    $191.89

    Facility

    $96.74

    $18.00 higher than Redding for the office setting.

  • Rest Of New York

    New York · 46601

    Office

    $158.58

    Facility

    $82.10

    $15.31 lower than Redding for the office setting.

  • Ohio

    Ohio · 46601

    Office

    $156.76

    Facility

    $83.27

    $17.13 lower than Redding for the office setting.

  • Oklahoma

    Oklahoma · 46601

    Office

    $153.00

    Facility

    $81.12

    $20.89 lower than Redding for the office setting.

  • Portland

    Oregon · 46601

    Office

    $176.90

    Facility

    $87.47

    $3.01 higher than Redding for the office setting.

  • Rest Of Oregon

    Oregon · 46601

    Office

    $163.49

    Facility

    $83.32

    $10.40 lower than Redding for the office setting.

  • Metropolitan Philadelphia

    Pennsylvania · 46601

    Office

    $172.68

    Facility

    $88.88

    $1.21 lower than Redding for the office setting.

  • Rest Of Pennsylvania

    Pennsylvania · 46601

    Office

    $156.85

    Facility

    $82.96

    $17.04 lower than Redding for the office setting.

  • Puerto Rico

    Puerto Rico · 46601

    Office

    $167.07

    Facility

    $85.69

    $6.82 lower than Redding for the office setting.

  • Rhode Island

    Rhode Island · 46601

    Office

    $169.76

    Facility

    $86.61

    $4.13 lower than Redding for the office setting.

  • South Carolina

    South Carolina · 46601

    Office

    $156.83

    Facility

    $82.45

    $17.06 lower than Redding for the office setting.

  • South Dakota**

    South Dakota · 46601

    Office

    $161.35

    Facility

    $80.85

    $12.54 lower than Redding for the office setting.

  • Tennessee

    Tennessee · 46601

    Office

    $153.03

    Facility

    $79.86

    $20.86 lower than Redding for the office setting.

  • Austin

    Texas · 46601

    Office

    $171.51

    Facility

    $86.34

    $2.38 lower than Redding for the office setting.

  • Beaumont

    Texas · 46601

    Office

    $155.89

    Facility

    $82.63

    $18.00 lower than Redding for the office setting.

  • Brazoria

    Texas · 46601

    Office

    $163.91

    Facility

    $84.14

    $9.98 lower than Redding for the office setting.

  • Dallas

    Texas · 46601

    Office

    $165.05

    Facility

    $84.87

    $8.84 lower than Redding for the office setting.

  • Fort Worth

    Texas · 46601

    Office

    $164.07

    Facility

    $84.70

    $9.82 lower than Redding for the office setting.

  • Galveston

    Texas · 46601

    Office

    $164.46

    Facility

    $84.53

    $9.43 lower than Redding for the office setting.

  • Houston

    Texas · 46601

    Office

    $168.31

    Facility

    $88.38

    $5.58 lower than Redding for the office setting.

  • Rest Of Texas

    Texas · 46601

    Office

    $159.87

    Facility

    $83.48

    $14.02 lower than Redding for the office setting.

  • Utah

    Utah · 46601

    Office

    $158.87

    Facility

    $83.21

    $15.02 lower than Redding for the office setting.

  • Virginia

    Virginia · 46601

    Office

    $162.12

    Facility

    $83.00

    $11.77 lower than Redding for the office setting.

  • Virgin Islands

    United States Virgin Islands · 46601

    Office

    $167.07

    Facility

    $85.69

    $6.82 lower than Redding for the office setting.

  • Vermont

    Vermont · 46601

    Office

    $161.47

    Facility

    $81.78

    $12.42 lower than Redding for the office setting.

  • Rest Of Washington

    Washington · 46601

    Office

    $170.67

    Facility

    $85.91

    $3.22 lower than Redding for the office setting.

  • Seattle (King Cnty)

    Washington · 46601

    Office

    $191.59

    Facility

    $92.82

    $17.70 higher than Redding for the office setting.

  • Wisconsin

    Wisconsin · 46601

    Office

    $156.66

    Facility

    $79.54

    $17.23 lower than Redding for the office setting.

  • West Virginia

    West Virginia · 46601

    Office

    $155.02

    Facility

    $85.07

    $18.87 lower than Redding for the office setting.

  • Wyoming**

    Wyoming · 46601

    Office

    $164.18

    Facility

    $83.68

    $9.71 lower than Redding for the office setting.

See how rates vary across the country

46601 · 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.

$147.53

$195.85

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

View all state and territory rates as a table
State / territoryRate rangeLocalities
AK$195.851
AL$149.601
AR$147.531
AZ$161.681
CA$173.89–$215.7229
CO$171.931
CT$176.751
DC$188.631
DE$164.271
FL$164.83–$181.113
GA$155.81–$169.282
GU$177.691
HI$177.691
IA$152.691
ID$153.761
IL$160.65–$175.984
IN$154.591
KS$152.261
KY$153.541
LA$153.42–$160.652
MA$171.08–$188.102
MD$167.23–$188.633
ME$154.80–$162.452
MI$157.61–$167.072
MN$164.161
MO$151.07–$160.893
MS$149.321
MT$165.991
NC$156.311
ND$161.841
NE$153.411
NH$169.511
NJ$178.60–$186.862
NM$158.541
NV$164.941
NY$158.58–$195.555
OH$156.761
OK$153.001
OR$163.49–$176.902
PA$156.85–$172.682
PR$167.071
RI$169.761
SC$156.831
SD$161.351
TN$153.031
TX$155.89–$171.518
UT$158.871
VA$162.12–$188.632
VI$167.071
VT$161.471
WA$170.67–$191.592
WI$156.661
WV$155.021
WY$164.181

Explore 46601 on the national rate map →

Where does this rate apply?

Redding is a Medicare payment area. Our Census mapping connects it to 32 cities and communities in California, 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 California →

Why are the office and facility amounts different?

For 46601 in Redding, the physician’s office rate is $173.89 and the facility-setting rate is $85.67: a difference of $88.22.

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 46601 in Redding. This uses the base rate on this page, so the locality and release stay consistent.

Reference amount per service

$191.28

$173.89 × 110% = $191.28

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 46601 in Redding.

PPRRVU2026_Oct_nonQPP.csv

5,599

Code
46601
Physician work
1.56
Practice expense
3.20
Malpractice
0.21

GPCI2026.csv

19

Locality
Redding
Physician work
1.017
Practice expense
1.096
Malpractice
0.536
Office / nonfacility calculation for 46601 in Redding
ComponentRVULocality factorAdjusted
Physician work1.56× 1.0171.5865
Practice expense3.20× 1.0963.5072
Malpractice0.21× 0.5360.1126
Total RVUs5.2063
Conversion factor× 33.4009

Office / nonfacility rate, Redding$173.89

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.

Open 46601 in the RVU calculator →

Explore RVUs, geographic factors and the full formula

Office / nonfacility

Office / nonfacility calculation inputs
ComponentRVULocal GPCI
Work1.561.017
Practice expense3.21.096
Malpractice0.210.536

(1.56 × 1.017 + 3.2 × 1.096 + 0.21 × 0.536) × $33.4009 = $173.89

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work1.561.017
Practice expense0.791.096
Malpractice0.210.536

(1.56 × 1.017 + 0.79 × 1.096 + 0.21 × 0.536) × $33.4009 = $85.67

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

46601 · Office / nonfacility

$173.89

Effective 2026-10-01

The base rate is $23.92 higher than on 2025-10-01, moving from $149.97 to $173.89 (15.9%).

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

    $149.97changed to$173.89

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.60 changed to 1.56
    • Practice expense RVU 2.65 changed to 3.20
    • Work GPCI 1.014 changed to 1.017
    • Practice expense GPCI 1.093 changed to 1.096
    • Malpractice GPCI 0.560 changed to 0.536

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    Earliest loaded release: $149.97

    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$173.89$85.67RVU26D
2026-07-01$173.89$85.67RVU26C
2026-04-01$173.89$85.67RVU26B
2026-01-01$173.89$85.67RVU26A
2025-10-01$149.97$91.64RVU25D
2025-07-01$149.97$91.64RVU25C
2025-04-01$149.97$91.64RVU25B
2025-01-01$149.97$91.64RVU25A

46601 billing questions

How is this different from 46600?

46601 is for diagnostic anoscopy using high-resolution magnification. Use 46600 for diagnostic anoscopy without that high-resolution examination.

Can brushing or washing be reported separately?

No. Collection of specimens by brushing or washing is included when performed as part of this examination.

Can a biopsy be included with 46601?

No. When biopsy is performed during high-resolution anoscopy, 46607 is the more appropriate code to evaluate.

Should modifier 50 be appended?

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

How are related endoscopies priced when performed together?

Endoscopy family pricing applies when related endoscopies are performed together. Same-day preoperative and postoperative care is included in this code's 0-day global period.

Can an assistant surgeon or co-surgeon be billed?

Medicare does not pay an assistant at surgery for this code; co-surgeons and team surgery are not permitted.

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 46601PPRRVU2026_Oct_nonQPP.csv, line 5,599 (RVU26D)
Geographic factors for ReddingGPCI2026.csv, line 19 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet