CPT code 25447: Interposition arthroplasty, intercarpal or carpometacarpal joints2026 Medicare rate & RVUs in Delaware
Reports interposition arthroplasty of an intercarpal or carpometacarpal joint, commonly used to treat painful thumb-base arthritis with reconstruction.
In Delaware, Medicare pays $734.90 for 25447 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 25447 nationwide
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 11 sections
What 25447 covers
This code describes reconstruction of an intercarpal or carpometacarpal joint using an interposed tissue or other reconstructive material. A common application is surgery for painful thumb carpometacarpal osteoarthritis, often involving trapeziectomy and tendon interposition, including ligament reconstruction and tendon interposition techniques. Orthopedic or hand surgeons typically perform the procedure in an operating room, often in a hospital outpatient department or ambulatory surgery center.
Select the code when the operative service is an interposition arthroplasty, rather than prosthetic replacement or a suspensionplasty technique. The operative report should identify the joint treated and describe the reconstruction performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is 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 Delaware compares for 25447
Across 109 of 109 payment localities, the facility rate for 25447 runs from $664.66 in Arkansas to $907.32 in Alaska. Delaware pays $734.90. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Delaware · this page$734.90
- Los Angeles, CA · California$797.42+$62.52
- Washington, DC area · District of Columbia$829.57+$94.67
- Miami, FL · Florida$857.73+$122.83
- Chicago, IL · Illinois$832.69+$97.79
- Manhattan, NY · New York$858.58+$123.68
- Alaska · Alaska$907.32+$172.42
Other areas in Delaware first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $673.38 |
| ArkansasArkansas | — | $664.66 |
| ArizonaArizona | — | $723.98 |
| Bakersfield, CACalifornia | — | $757.03 |
| Chico, CACalifornia | — | $751.57 |
| El Centro, CACalifornia | — | $751.89 |
| Fresno, CACalifornia | — | $751.57 |
| Hanford, CACalifornia | — | $751.57 |
| Madera, CACalifornia | — | $751.57 |
| Merced, CACalifornia | — | $751.57 |
| Modesto, CACalifornia | — | $751.57 |
| Napa, CACalifornia | — | $840.13 |
| Oxnard, CACalifornia | — | $789.95 |
| Redding, CACalifornia | — | $751.57 |
| Rest of CaliforniaCalifornia | — | $751.57 |
| Riverside, CACalifornia | — | $772.66 |
| Sacramento, CACalifornia | — | $780.60 |
| Salinas, CACalifornia | — | $777.54 |
| San Diego, CACalifornia | — | $790.04 |
| Marin County, CACalifornia | — | $878.82 |
| San Francisco, CACalifornia | — | $876.59 |
| San Benito County, CACalifornia | — | $899.75 |
| Santa Clara County, CACalifornia | — | $890.65 |
| San Luis Obispo, CACalifornia | — | $766.03 |
| Santa Cruz, CACalifornia | — | $792.96 |
| Santa Maria, CACalifornia | — | $778.87 |
| Santa Rosa, CACalifornia | — | $800.41 |
| Stockton, CACalifornia | — | $751.57 |
| Vallejo, CACalifornia | — | $836.93 |
| Visalia, CACalifornia | — | $751.57 |
| Yuba City, CACalifornia | — | $751.57 |
| ColoradoColorado | — | $755.13 |
| ConnecticutConnecticut | — | $790.33 |
| Fort Lauderdale, FLFlorida | — | $801.11 |
| Rest of FloridaFlorida | — | $761.97 |
| Atlanta, GAGeorgia | — | $763.40 |
| Rest of GeorgiaGeorgia | — | $720.08 |
| Hawaii, Guam, HIHawaii | — | $762.36 |
| IowaIowa | — | $675.77 |
| IdahoIdaho | — | $682.43 |
| East St. Louis, ILIllinois | — | $783.31 |
| Rest of IllinoisIllinois | — | $751.43 |
| Suburban Chicago, ILIllinois | — | $805.85 |
| IndianaIndiana | — | $685.64 |
| KansasKansas | — | $679.08 |
| KentuckyKentucky | — | $700.94 |
| New Orleans, LALouisiana | — | $732.90 |
| Rest of LouisianaLouisiana | — | $702.41 |
| Metropolitan Boston, MAMassachusetts | — | $815.91 |
| Rest of MassachusettsMassachusetts | — | $753.85 |
| Baltimore area, MDMaryland | — | $789.38 |
| Rest of MarylandMaryland | — | $745.93 |
| Rest of MaineMaine | — | $692.18 |
| Southern Maine, MEMaine | — | $716.65 |
| Detroit, MIMichigan | — | $776.98 |
| Rest of MichiganMichigan | — | $723.02 |
| MinnesotaMinnesota | — | $707.50 |
| Metropolitan Kansas City, MOMissouri | — | $721.82 |
| Metropolitan St. Louis, MOMissouri | — | $727.82 |
| Rest of MissouriMissouri | — | $695.72 |
| MississippiMississippi | — | $680.00 |
| MontanaMontana | — | $743.71 |
| North CarolinaNorth Carolina | — | $697.67 |
| North DakotaNorth Dakota | — | $704.95 |
| NebraskaNebraska | — | $677.22 |
| New HampshireNew Hampshire | — | $749.45 |
| Northern New JerseyNew Jersey | — | $823.65 |
| Rest of New JerseyNew Jersey | — | $794.81 |
| New MexicoNew Mexico | — | $729.08 |
| NevadaNevada | — | $733.24 |
| NYC suburbs and Long Island, NYNew York | — | $885.40 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $804.93 |
| Queens, NYNew York | — | $855.88 |
| Rest of New YorkNew York | — | $707.58 |
| OhioOhio | — | $715.10 |
| OklahomaOklahoma | — | $693.25 |
| Portland, OROregon | — | $769.89 |
| Rest of OregonOregon | — | $723.05 |
| Metropolitan Philadelphia, PAPennsylvania | — | $776.42 |
| Rest of PennsylvaniaPennsylvania | — | $712.66 |
| Puerto RicoPuerto Rico | — | $746.56 |
| Rhode IslandRhode Island | — | $754.37 |
| South CarolinaSouth Carolina | — | $708.46 |
| South DakotaSouth Dakota | — | $700.37 |
| TennesseeTennessee | — | $682.92 |
| Austin, TXTexas | — | $756.57 |
| Beaumont, TXTexas | — | $708.92 |
| Brazoria, TXTexas | — | $729.14 |
| Dallas, TXTexas | — | $736.27 |
| Fort Worth, TXTexas | — | $733.76 |
| Galveston, TXTexas | — | $732.96 |
| Houston, TXTexas | — | $768.83 |
| Rest of TexasTexas | — | $720.33 |
| UtahUtah | — | $716.98 |
| VirginiaVirginia | — | $718.87 |
| Virgin Islands, VIUnited States Virgin Islands | — | $746.56 |
| VermontVermont | — | $708.13 |
| Rest of WashingtonWashington | — | $750.46 |
| King County, WAWashington | — | $825.31 |
| WisconsinWisconsin | — | $684.41 |
| West VirginiaWest Virginia | — | $727.99 |
| WyomingWyoming | — | $726.82 |
25447 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.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 25447 rate is calculated
Each of 25447’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 · 25447
RVUs × geographic indexes × conversion factor
Work10.24
10.24 RVUs× 1.000 GPCI
Practice expense10.07
10.07 RVUs× 1.000 GPCI
Malpractice1.96
1.96 RVUs× 1.000 GPCI
Adjusted RVUs
22.2700
Conversion factor
$33.4009
Medicare rate
$743.84
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Delaware inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
2,464
- Code
- 25447
- Physician work
- 10.24
- Practice expense
- 10.07
- Malpractice
- 1.96
GPCI2026.csv
40
- Locality
- Delaware
- Physician work
- 1.005
- Practice expense
- 0.988
- Malpractice
- 0.899
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 10.24 | × 1.005 | 10.2912 |
| Practice expense | 10.07 | × 0.988 | 9.9492 |
| Malpractice | 1.96 | × 0.899 | 1.7620 |
| Total RVUs | 22.0024 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Delaware$734.90
Facility: (10.24 × 1.005 + 10.07 × 0.988 + 1.96 × 0.899) × $33.4009 = $734.90
Payment rules and modifiers for 25447
25447 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 25447
Interposition arthroplasty, intercarpal or carpometacarpal joints
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.10/0.69/0.21 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 25447
Interposition arthroplasty, intercarpal or carpometacarpal joints
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
25447 without 50 · national facility
$743.84
Interposition arthroplasty, intercarpal or carpometacarpal joints
25447-50 · Bilateral: 150%
$1,115.76
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
How 25447 has changed in Delaware
25447 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
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
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $734.90 | RVU26D |
| 2026-07-01 | Not available in this setting | $734.90 | RVU26C |
| 2026-04-01 | Not available in this setting | $734.90 | RVU26B |
| 2026-01-01 | Not available in this setting | $734.90 | RVU26A |
| 2025-10-01 | Not available in this setting | $791.75 | RVU25D |
| 2025-07-01 | Not available in this setting | $791.75 | RVU25C |
| 2025-04-01 | Not available in this setting | $791.75 | RVU25B |
| 2025-01-01 | Not available in this setting | $791.75 | RVU25A |
| 2024-10-01 | Not available in this setting | $839.38 | RVU24D |
| 2024-07-01 | Not available in this setting | $839.38 | RVU24C |
| 2024-04-01 | Not available in this setting | $839.38 | RVU24B |
| 2024-03-09 | Not available in this setting | $839.38 | RVU24AR |
| 2024-01-01 | Not available in this setting | $825.68 | RVU24A |
| 2023-10-01 | Not available in this setting | $851.34 | RVU23D |
| 2023-07-01 | Not available in this setting | $851.34 | RVU23C |
| 2023-04-01 | Not available in this setting | $851.34 | RVU23B |
| 2023-01-01 | Not available in this setting | $851.34 | RVU23A |
| 2022-10-01 | Not available in this setting | $859.54 | RVU22D |
| 2022-07-01 | Not available in this setting | $859.54 | RVU22C |
| 2022-04-01 | Not available in this setting | $859.54 | RVU22B |
| 2022-01-01 | Not available in this setting | $859.54 | RVU22A |
| 2021-10-01 | Not available in this setting | $860.16 | RVU21D |
| 2021-07-01 | Not available in this setting | $860.16 | RVU21C |
| 2021-04-01 | Not available in this setting | $860.16 | RVU21B |
| 2021-01-01 | Not available in this setting | $860.16 | RVU21A |
| 2020-10-01 | Not available in this setting | $874.03 | RVU20D |
| 2020-07-01 | Not available in this setting | $874.03 | RVU20C |
| 2020-04-01 | Not available in this setting | $874.03 | RVU20B |
| 2020-01-01 | Not available in this setting | $874.03 | RVU20A |
| 2019-10-01 | Not available in this setting | $877.52 | RVU19D |
| 2019-07-01 | Not available in this setting | $877.52 | RVU19C |
| 2019-04-01 | Not available in this setting | $877.52 | RVU19B |
| 2019-01-01 | Not available in this setting | $877.52 | RVU19A |
| 2018-10-01 | Not available in this setting | $876.56 | RVU18D |
| 2018-07-01 | Not available in this setting | $876.56 | RVU18C |
| 2018-04-01 | Not available in this setting | $876.56 | RVU18B |
| 2018-01-01 | Not available in this setting | $876.56 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $873.91 | RVU17D |
| 2017-07-01 | Not available in this setting | $873.91 | RVU17C |
| 2017-04-01 | Not available in this setting | $873.91 | RVU17B |
| 2017-01-01 | Not available in this setting | $873.91 | RVU17A |
| 2016-10-01 | Not available in this setting | $871.44 | RVU16D |
| 2016-07-01 | Not available in this setting | $871.44 | RVU16C |
| 2016-04-01 | Not available in this setting | $871.44 | RVU16B |
| 2016-01-01 | Not available in this setting | $871.44 | RVU16A |
| 2015-10-01 | Not available in this setting | $874.56 | RVU15D |
| 2015-07-01 | Not available in this setting | $874.56 | RVU15C |
| 2015-04-01 | Not available in this setting | $870.21 | RVU15B |
| 2015-01-01 | Not available in this setting | $870.21 | RVU15A |
| 2014-10-01 | Not available in this setting | $851.99 | RVU14D |
| 2014-07-01 | Not available in this setting | $851.99 | RVU14C |
| 2014-04-01 | Not available in this setting | $851.99 | RVU14B |
| 2014-01-01 | Not available in this setting | $851.99 | RVU14A |
| 2013-10-01 | Not available in this setting | $832.24 | RVU13D |
| 2013-07-01 | Not available in this setting | $832.24 | RVU13C |
| 2013-04-01 | Not available in this setting | $832.24 | RVU13B |
| 2013-01-01 | Not available in this setting | $832.24 | RVU13AR |
Where the Delaware rate applies
Delaware is a Medicare payment area, not a city. Our Census mapping connects it to 79 cities and communities in Delaware. Some span more than one payment area; confirm with the service ZIP.
- Arden
- Ardencroft
- Ardentown
- Bear
- Bellefonte
- Bethany Beach
- Bethel
- Blades
25447 billing questions
How is 25447 distinguished from 25448?
25447 describes interposition arthroplasty. 25448 is the distinct suspensionplasty technique, so follow the operative method rather than treating the codes as interchangeable.
When would 25445 be a better fit?
Use 25445 when the surgeon performs arthroplasty with a prosthetic trapezium. Code 25447 describes interposition reconstruction rather than prosthetic replacement.
What documentation supports reporting 25447?
Document the intercarpal or carpometacarpal joint treated and the interposition reconstruction performed. For thumb-base surgery, the operative report should make clear that the service is an interposition arthroplasty.
How does the 90-day global period affect postoperative care?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
How are bilateral procedures and multiple procedures paid?
Bilateral reporting with modifier 50 is paid at 150%. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are paid at 50%.
Can an assistant or co-surgeon be paid for 25447?
An assistant at surgery may be paid. Co-surgeon payment requires supporting documentation; team surgery is 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
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