CPT code 47550: Biliary endoscopy, intraoperative choledochoscopy2026 Medicare rate & RVUs in Oklahoma

Reports direct endoscopic inspection of the bile ducts during an operation, such as cholecystectomy with duct exploration, as an add-on to the primary procedure.

CMS RVU26DEffective Oct 1, 2026One payment locality335 Medicare services in 2024

In Oklahoma, Medicare pays $137.21 for 47550 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$137.21Hospital or facility

Check a contract rate as a % of Medicare · 47550 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 47550 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Oklahoma
  2. What 47550 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 47550 covers

During an operation, the surgeon passes an endoscope into the biliary tree to inspect the ducts directly. This may help assess the common bile duct when stones or another duct abnormality are suspected during gallbladder or bile duct surgery. The service is performed in the operating room as part of the operative encounter; it is not the same as imaging the ducts with contrast or endoscopy through a percutaneous access tract.

Report 47550 only with an eligible primary procedure, not as a stand-alone service. The operative report should identify the primary operation and document that biliary endoscopy was performed, including the duct examined and relevant findings. CMS treats this as an add-on paid within the primary procedure’s global period, so it does not establish a separate global period. The endoscopic inspection is distinct from the primary operation’s description; select the primary code according to the operation actually performed.

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 Oklahoma compares for 47550

Across 109 of 109 payment localities, the facility rate for 47550 runs from $127.58 in Wisconsin to $184.91 in Alaska. Oklahoma pays $137.21. The RVUs are the same everywhere; the geographic indexes change the dollars.

47550 in Oklahoma vs other payment areas
  1. Oklahoma · this page$137.21
  2. Los Angeles, CA · California$145.24+$8.03
  3. Washington, DC area · District of Columbia$157.04+$19.83
  4. Miami, FL · Florida$182.16+$44.95
  5. Chicago, IL · Illinois$176.47+$39.26
  6. Manhattan, NY · New York$168.87+$31.66
  7. Alaska · Alaska$184.91+$47.70

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

Every other payment area

47550 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$131.79
ArkansasArkansas—$130.21
ArizonaArizona—$140.83
Bakersfield, CACalifornia—$139.77
Chico, CACalifornia—$137.84
El Centro, CACalifornia—$137.96
Fresno, CACalifornia—$137.84
Hanford, CACalifornia—$137.84

47550 rates by state

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

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

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47550 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

See 47550 in every payment locality

How the 47550 rate is calculated

Each of 47550’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 · 47550

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.94

2.94 RVUs× 1.000 GPCI

Practice expense0.69

0.69 RVUs× 1.000 GPCI

Malpractice0.71

0.71 RVUs× 1.000 GPCI

Adjusted RVUs

4.3400

Conversion factor

$33.4009

Medicare rate

$144.96

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

The exact Oklahoma inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

5,697

Code
47550
Physician work
2.94
Practice expense
0.69
Malpractice
0.71

GPCI2026.csv

86

Locality
Oklahoma
Physician work
1.000
Practice expense
0.893
Malpractice
0.777
Facility calculation for 47550 in Oklahoma
ComponentRVULocality factorAdjusted
Physician work2.94× 1.0002.9400
Practice expense0.69× 0.8930.6162
Malpractice0.71× 0.7770.5517
Total RVUs4.1078
Conversion factor× 33.4009

Facility rate, Oklahoma$137.21

Facility: (2.94 × 1 + 0.69 × 0.893 + 0.71 × 0.777) × $33.4009 = $137.21

Open 47550 in the RVU calculator

Payment rules and modifiers for 47550

The CMS indicators that decide how 47550 is paid alongside other services.

CMS payment indicators · 47550

Biliary endoscopy, intraoperative choledochoscopy

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)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 80 · payment effect

With and without the modifier

47550 without 80 · national facility

$144.96

Biliary endoscopy, intraoperative choledochoscopy

47550-80 · Assistant: 16%

$23.19

A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.

When to use modifier 80

How 47550 has changed in Oklahoma

47550 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

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
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$137.21RVU26D
2026-07-01Not available in this setting$137.21RVU26C
2026-04-01Not available in this setting$137.21RVU26B
2026-01-01Not available in this setting$137.21RVU26A
2025-10-01Not available in this setting$148.64RVU25D
2025-07-01Not available in this setting$148.64RVU25C
2025-04-01Not available in this setting$148.64RVU25B
2025-01-01Not available in this setting$148.64RVU25A
2024-10-01Not available in this setting$152.94RVU24D
2024-07-01Not available in this setting$152.94RVU24C
2024-04-01Not available in this setting$152.94RVU24B
2024-03-09Not available in this setting$152.94RVU24AR
2024-01-01Not available in this setting$150.44RVU24A
2023-10-01Not available in this setting$155.44RVU23D
2023-07-01Not available in this setting$155.44RVU23C
2023-04-01Not available in this setting$155.44RVU23B
2023-01-01Not available in this setting$155.44RVU23A
2022-10-01Not available in this setting$158.72RVU22D
2022-07-01Not available in this setting$158.72RVU22C
2022-04-01Not available in this setting$158.72RVU22B
2022-01-01Not available in this setting$158.72RVU22A
2021-10-01Not available in this setting$159.49RVU21D
2021-07-01Not available in this setting$159.49RVU21C
2021-04-01Not available in this setting$159.49RVU21B
2021-01-01Not available in this setting$159.49RVU21A
2020-10-01Not available in this setting$165.77RVU20D
2020-07-01Not available in this setting$165.77RVU20C
2020-04-01Not available in this setting$165.77RVU20B
2020-01-01Not available in this setting$165.77RVU20A
2019-10-01Not available in this setting$167.61RVU19D
2019-07-01Not available in this setting$167.61RVU19C
2019-04-01Not available in this setting$167.61RVU19B
2019-01-01Not available in this setting$167.61RVU19A
2018-10-01Not available in this setting$167.42RVU18D
2018-07-01Not available in this setting$167.42RVU18C
2018-04-01Not available in this setting$167.42RVU18B
2018-01-01Not available in this setting$167.42RVU18AR1
2017-10-01Not available in this setting$165.50RVU17D
2017-07-01Not available in this setting$165.50RVU17C
2017-04-01Not available in this setting$165.50RVU17B
2017-01-01Not available in this setting$165.50RVU17A
2016-10-01Not available in this setting$163.63RVU16D
2016-07-01Not available in this setting$163.63RVU16C
2016-04-01Not available in this setting$163.63RVU16B
2016-01-01Not available in this setting$163.63RVU16A
2015-10-01Not available in this setting$163.92RVU15D
2015-07-01Not available in this setting$163.92RVU15C
2015-04-01Not available in this setting$163.10RVU15B
2015-01-01Not available in this setting$163.10RVU15A
2014-10-01Not available in this setting$158.90RVU14D
2014-07-01Not available in this setting$158.90RVU14C
2014-04-01Not available in this setting$158.90RVU14B
2014-01-01Not available in this setting$158.90RVU14A
2013-10-01Not available in this setting$153.43RVU13D
2013-07-01Not available in this setting$153.43RVU13C
2013-04-01Not available in this setting$153.43RVU13B
2013-01-01Not available in this setting$153.43RVU13AR

Price 47550 for an earlier date of service

Where the Oklahoma rate applies

Oklahoma is a Medicare payment area, not a city. Our Census mapping connects it to 846 cities and communities in Oklahoma. Some span more than one payment area; confirm with the service ZIP.

  • Lahoma
  • Achille
  • Ada
  • Adair
  • Adams
  • Adamson
  • Addington
  • Afton

Browse all communities in Oklahoma

47550 billing questions

Can 47550 be billed by itself?

No. It is an add-on code and must be reported with an eligible primary procedure.

How is 47550 different from 47563?

47550 represents endoscopic inspection of the bile ducts during surgery. 47563 describes laparoscopic cholecystectomy with cholangiography, which uses contrast imaging rather than direct endoscopic viewing.

Does 47550 create its own global period?

No. CMS places its payment within the primary procedure’s global period; it does not establish a separate global period.

What should the operative note support?

Document the primary operation and the intraoperative endoscopic examination of the biliary tree, including the duct examined and the findings.

Is percutaneous biliary endoscopy reported with 47550?

No. 47550 is for endoscopy performed intraoperatively; percutaneous biliary endoscopy codes describe procedures through percutaneous access.

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 47550PPRRVU2026_Oct_nonQPP.csv, line 5,697 (RVU26D)
Geographic factors for OklahomaGPCI2026.csv, line 86 (RVU26D)

Open CMS sourceHow we calculate rates

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