CPT code 47535: Biliary catheter conversion, external to internal-external2026 Medicare rate & RVUs in Mississippi

Reports percutaneous conversion of an existing external biliary drainage catheter to an internal-external catheter, including cholangiography and imaging guidance.

CMS RVU26DEffective Oct 1, 2026One payment locality338 Medicare services in 2024

In Mississippi, Medicare pays $746.58 for 47535 in the office and $161.93 when it’s performed in a hospital or facility.

$746.58Office (non-facility)
$161.93Hospital or facility
−12.0%vs the national office rate ($848.38)

Check a contract rate as a % of Medicare · 47535 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 47535 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 47535 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 47535 covers

An interventional radiologist converts an existing external biliary drainage catheter by directing the catheter across the biliary obstruction and into the bowel, creating internal-external drainage. The service is typically performed in a hospital imaging suite for a patient whose biliary obstruction was initially managed with external drainage and can now be traversed. Diagnostic cholangiography, imaging guidance, and the associated radiological supervision and interpretation are included in the conversion service.

Report this code when the existing external catheter is converted, rather than when a catheter is newly placed or an existing catheter is simply exchanged. The procedure note should identify the prior external catheter, document the conversion and final catheter position, and support the cholangiographic and imaging work. The service has a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate; assistant-at-surgery payment is restricted, and co-surgeons and team surgery 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 Mississippi compares for 47535

Across 109 of 109 payment localities, the office rate for 47535 runs from $741.95 in Arkansas to $1,167.66 in San Benito County, CA. Mississippi pays $746.58. The RVUs are the same everywhere; the geographic indexes change the dollars.

47535 in Mississippi vs other payment areas
  1. Mississippi · this page$746.58
  2. Los Angeles, CA · California$977.92+$231.34
  3. Washington, DC area · District of Columbia$982.52+$235.94
  4. Miami, FL · Florida$899.27+$152.69
  5. Chicago, IL · Illinois$871.41+$124.83
  6. Manhattan, NY · New York$979.31+$232.73
  7. Alaska · Alaska$952.08+$205.50

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

Every other payment area

47535 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$753.97$159.81
ArkansasArkansas$741.95$158.66
ArizonaArizona$824.45$166.46
Bakersfield, CACalifornia$912.93$168.70
Chico, CACalifornia$911.63$167.40
El Centro, CACalifornia$911.70$167.47
Fresno, CACalifornia$911.63$167.40
Hanford, CACalifornia$911.63$167.40

47535 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.

$741.95

$1,039.65

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

View every state and territory as a table
47535 office rate range by state
State / territoryOffice rate rangeLocalities
AK$952.081
AL$753.971
AR$741.951
AZ$824.451
CA$911.63–$1,167.6629
CO$891.931
CT$908.291
DC$982.521
DE$839.111
FL$824.57–$899.273
GA$774.95–$862.942
GU$938.981
HI$938.981
IA$779.761
ID$784.381
IL$795.10–$879.424
IN$789.501
KS$773.541
KY$768.861
LA$766.66–$808.722
MA$884.91–$988.932
MD$856.96–$982.523
ME$786.52–$836.732
MI$788.86–$833.552
MN$858.731
MO$750.66–$814.553
MS$746.581
MT$848.351
NC$795.931
ND$839.851
NE$785.131
NH$875.511
NJ$919.82–$970.332
NM$792.721
NV$846.691
NY$808.85–$1,002.255
OH$787.131
OK$769.701
OR$841.30–$925.072
PA$789.75–$882.392
PR$855.931
RI$872.551
SC$792.621
SD$838.851
TN$777.541
TX$783.87–$887.928
UT$804.591
VA$832.17–$982.522
VI$855.931
VT$834.231
WA$884.01–$1,012.322
WI$808.821
WV$762.161
WY$844.651

See 47535 in every payment locality

How the 47535 rate is calculated

Each of 47535’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 · 47535

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.85

3.85 RVUs× 1.000 GPCI

Practice expense21.12

21.12 RVUs× 1.000 GPCI

Malpractice0.43

0.43 RVUs× 1.000 GPCI

Adjusted RVUs

25.4000

Conversion factor

$33.4009

Medicare rate

$848.38

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

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,687

Code
47535
Physician work
3.85
Practice expense
21.12
Malpractice
0.43

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 47535 in Mississippi
ComponentRVULocality factorAdjusted
Physician work3.85× 1.0003.8500
Practice expense21.12× 0.86118.1843
Malpractice0.43× 0.7390.3178
Total RVUs22.3521
Conversion factor× 33.4009

Office rate, Mississippi$746.58

Office: (3.85 × 1 + 21.12 × 0.861 + 0.43 × 0.739) × $33.4009 = $746.58

Facility: (3.85 × 1 + 0.79 × 0.861 + 0.43 × 0.739) × $33.4009 = $161.93

Open 47535 in the RVU calculator

Payment rules and modifiers for 47535

The CMS indicators that decide how 47535 is paid alongside other services.

CMS payment indicators · 47535

Biliary catheter conversion, external to internal-external

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
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

47535 without 51 · national office

$848.38

Biliary catheter conversion, external to internal-external

47535-51 · Second procedure: 50%

$424.19

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 47535 has changed in Mississippi

47535 · Office / nonfacility

$746.58

Effective 2026-10-01

The base rate is $24.67 higher than on 2025-10-01, moving from $721.91 to $746.58 (3.4%).

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

    $721.91changed to$746.58

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 3.95 changed to 3.85
    • Practice expense RVU 21.18 changed to 21.12
    • Malpractice RVU 0.42 changed to 0.43
    • Practice expense GPCI 0.852 changed to 0.861
    • Malpractice GPCI 0.768 changed to 0.739

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $757.99changed to$721.91

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 21.73 changed to 21.18
    • Malpractice RVU 0.40 changed to 0.42

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $745.62changed to$757.99

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $789.71changed to$745.62

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 22.51 changed to 21.73
    • Practice expense GPCI 0.847 changed to 0.852
    • Malpractice GPCI 0.720 changed to 0.768
  5. January 1, 2023

    RVU23A

    $820.83changed to$789.71

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 23.20 changed to 22.51
    • Malpractice RVU 0.35 changed to 0.40
    • Practice expense GPCI 0.842 changed to 0.847
    • Malpractice GPCI 0.671 changed to 0.720

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $868.54changed to$820.83

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 24.60 changed to 23.20
    • Malpractice RVU 0.34 changed to 0.35

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $887.28changed to$868.54

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 23.90 changed to 24.60
    • Practice expense GPCI 0.856 changed to 0.842
    • Malpractice GPCI 0.521 changed to 0.671

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $904.22changed to$887.28

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 24.15 changed to 23.90
    • Malpractice RVU 0.35 changed to 0.34
    • Practice expense GPCI 0.870 changed to 0.856
    • Malpractice GPCI 0.370 changed to 0.521

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $916.88changed to$904.22

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 24.59 changed to 24.15
    • Malpractice RVU 0.34 changed to 0.35

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $911.83changed to$916.88

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 24.55 changed to 24.59
    • Malpractice RVU 0.35 changed to 0.34
    • Practice expense GPCI 0.867 changed to 0.870
    • Malpractice GPCI 0.492 changed to 0.370

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $989.29changed to$911.83

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 4.50 changed to 3.95
    • Practice expense RVU 26.36 changed to 24.55
    • Malpractice RVU 0.58 changed to 0.35
    • Practice expense GPCI 0.864 changed to 0.867
    • Malpractice GPCI 0.613 changed to 0.492

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    No ratechanged to$989.29

    Held through RVU16B, RVU16C, RVU16D.

  13. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$746.58$161.93RVU26D
2026-07-01$746.58$161.93RVU26C
2026-04-01$746.58$161.93RVU26B
2026-01-01$746.58$161.93RVU26A
2025-10-01$721.91$175.96RVU25D
2025-07-01$721.91$175.96RVU25C
2025-04-01$721.91$175.96RVU25B
2025-01-01$721.91$175.96RVU25A
2024-10-01$757.99$179.43RVU24D
2024-07-01$757.99$179.43RVU24C
2024-04-01$757.99$179.43RVU24B
2024-03-09$757.99$179.43RVU24AR
2024-01-01$745.62$176.50RVU24A
2023-10-01$789.71$182.65RVU23D
2023-07-01$789.71$182.65RVU23C
2023-04-01$789.71$182.65RVU23B
2023-01-01$789.71$182.65RVU23A
2022-10-01$820.83$184.45RVU22D
2022-07-01$820.83$184.45RVU22C
2022-04-01$820.83$184.45RVU22B
2022-01-01$820.83$184.45RVU22A
2021-10-01$868.54$185.45RVU21D
2021-07-01$868.54$185.45RVU21C
2021-04-01$868.54$185.45RVU21B
2021-01-01$868.54$185.45RVU21A
2020-10-01$887.28$191.89RVU20D
2020-07-01$887.28$191.89RVU20C
2020-04-01$887.28$191.89RVU20B
2020-01-01$887.28$191.89RVU20A
2019-10-01$904.22$192.48RVU19D
2019-07-01$904.22$192.48RVU19C
2019-04-01$904.22$192.48RVU19B
2019-01-01$904.22$192.48RVU19A
2018-10-01$916.88$192.77RVU18D
2018-07-01$916.88$192.77RVU18C
2018-04-01$916.88$192.77RVU18B
2018-01-01$916.88$192.77RVU18AR1
2017-10-01$911.83$194.61RVU17D
2017-07-01$911.83$194.61RVU17C
2017-04-01$911.83$194.61RVU17B
2017-01-01$911.83$194.61RVU17A
2016-10-01$989.29$226.44RVU16D
2016-07-01$989.29$226.44RVU16C
2016-04-01$989.29$226.44RVU16B
2016-01-01$989.29$226.44RVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 47535 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

47535 billing questions

How is conversion different from initial internal-external catheter placement?

Use 47535 when an existing external biliary drainage catheter is converted to internal-external drainage. Initial placement of an internal-external catheter is reported with 47534.

How is conversion different from catheter exchange?

Code 47535 describes changing an existing external catheter into an internal-external drainage catheter. Code 47536 describes exchange of an existing biliary drainage catheter, not this conversion.

Can cholangiography or imaging guidance be billed separately?

Diagnostic cholangiography, imaging guidance, and associated radiological supervision and interpretation are included in 47535.

Should modifier 50 be appended?

No. The CMS bilateral adjustment does not apply, and modifier 50 is inappropriate for this service.

What documentation supports reporting 47535?

Document the existing external catheter, the percutaneous conversion, cholangiographic findings, and the final internal-external catheter position.

How are other same-session procedures handled?

The highest-valued procedure is paid in full, and other procedures in the same session are subject to the standard multiple-procedure reduction. Assistant-at-surgery payment is restricted; 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 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 47535PPRRVU2026_Oct_nonQPP.csv, line 5,687 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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