CPT code 47544: Biliary stone removal, percutaneous extraction2026 Medicare rate & RVUs in Michigan
Percutaneous biliary stone removal covers image-guided extraction of calculi from bile ducts or the gallbladder during a qualifying biliary access procedure.
Medicare pays $735.62–$777.51 for 47544 in the office in Michigan, from Rest of Michigan to Detroit, MI. Which amount applies depends on the service address.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 47544 covers
This service removes stones from the bile ducts or gallbladder through percutaneous access, using imaging to guide the extraction. It is typically performed by an interventional radiologist in a hospital or other procedural setting when stones are reached through a tract from the skin rather than removed during laparoscopic surgery. The service may involve tract dilation when needed to permit access or extraction.
Report 47544 only with a primary procedure; CMS treats it as an add-on paid within that primary procedure’s global period. The record should identify the percutaneous route, the biliary site treated, the stones addressed, and the extraction performed, along with the associated primary procedure. Do not use it for duct imaging alone, duct dilation alone, or stone removal performed as part of a laparoscopic cholecystectomy.
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.
Where 47544 pays more and less in Michigan
| Payment locality | Office | Facility |
|---|---|---|
| Detroit, MI | $777.51 | $142.55 |
| Rest of Michigan | $735.62 | $134.86 |
How the 47544 rate is calculated
Each of 47544’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 · 47544
RVUs × geographic indexes × conversion factor
Work3.20
3.20 RVUs× 1.000 GPCI
Practice expense20.16
20.16 RVUs× 1.000 GPCI
Malpractice0.37
0.37 RVUs× 1.000 GPCI
Adjusted RVUs
23.7300
Conversion factor
$33.4009
Medicare rate
$792.60
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 47544
The CMS indicators that decide how 47544 is paid alongside other services.
CMS payment indicators · 47544
Biliary stone removal, percutaneous extraction
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
47544 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 47542Biliary dilationBile duct or ampulla
- Use 47542 for percutaneous dilation of a bile duct or ampulla. Use 47544 when the service removes calculi from a bile duct or the gallbladder.
- 47543Biliary biopsyPercutaneous endoluminal sampling
- 47543 represents endoluminal biopsy of the biliary tree. It does not represent stone extraction.
- 47564Laparoscopic cholecystectomyWith common duct exploration
- 47564 applies to laparoscopic cholecystectomy with common duct exploration. It is distinct from percutaneous stone removal reported with 47544.
47544 billing questions
What distinguishes 47544 from biliary duct dilation?
47544 represents percutaneous removal of stones from a bile duct or the gallbladder. Dilation of a biliary duct or ampulla is a different service, reported with 47542 when performed and supported.
Can 47544 be submitted by itself?
No. CMS identifies it as an add-on code that must be billed with a primary procedure and is paid within that procedure’s global period.
Does 47544 describe laparoscopic stone removal?
No. It describes percutaneous treatment through access from the skin. Stone removal during laparoscopic cholecystectomy or laparoscopic duct exploration is not the percutaneous service represented by 47544.
What documentation supports reporting 47544?
Document the percutaneous access route, whether the treated site was a bile duct or the gallbladder, the stone extraction performed, and the primary procedure reported with the add-on.
Is 47544 reported for biliary imaging alone?
No. Cholangiographic injection or imaging without stone extraction does not support 47544; the code is for percutaneous calculus removal.
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
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