CPT code 26850: Knuckle fusion, metacarpophalangeal joint2026 Medicare rate & RVUs in Delaware
Reports surgical fusion of a finger metacarpophalangeal joint for conditions such as painful arthritis, instability, or post-traumatic deformity.
In Delaware, Medicare pays $697.98 for 26850 in a facility. There’s no office rate.
Check a contract rate as a % of Medicare · 26850 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 26850 covers
Code 26850 describes an operation to fuse a finger’s metacarpophalangeal (MCP) joint, the joint where the finger meets the hand. The surgeon prepares the joint surfaces and positions them for fusion; internal fixation may be used. Hand or orthopedic surgeons commonly perform the procedure in a hospital operating room or ambulatory surgery center for a painful, unstable, or deformed MCP joint, including after trauma.
Select this code for MCP fusion without autogenous bone graft; when autogenous graft is used, consider 26852. The operative report should identify the joint and side, the condition treated, and whether graft or fixation was used. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures are paid at 50%. Modifier 50 is inappropriate for this code. Assistant-at-surgery payment requires documented medical necessity; 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 Delaware compares for 26850
Across 109 of 109 payment localities, the facility rate for 26850 runs from $624.43 in Arkansas to $901.55 in San Benito County, CA. Delaware pays $697.98. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Delaware · this page$697.98
- Los Angeles, CA · California$779.81+$81.83
- Washington, DC area · District of Columbia$800.48+$102.50
- Miami, FL · Florida$791.47+$93.49
- Chicago, IL · Illinois$767.30+$69.32
- Manhattan, NY · New York$816.78+$118.80
- Alaska · Alaska$830.81+$132.83
Other areas in Delaware first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | — | $633.56 |
| ArkansasArkansas | — | $624.43 |
| ArizonaArizona | — | $686.75 |
| Bakersfield, CACalifornia | — | $734.87 |
| Chico, CACalifornia | — | $731.19 |
| El Centro, CACalifornia | — | $731.41 |
| Fresno, CACalifornia | — | $731.19 |
| Hanford, CACalifornia | — | $731.19 |
| Madera, CACalifornia | — | $731.19 |
| Merced, CACalifornia | — | $731.19 |
| Modesto, CACalifornia | — | $731.19 |
| Napa, CACalifornia | — | $836.08 |
| Oxnard, CACalifornia | — | $774.55 |
| Redding, CACalifornia | — | $731.19 |
| Rest of CaliforniaCalifornia | — | $731.19 |
| Riverside, CACalifornia | — | $745.40 |
| Sacramento, CACalifornia | — | $764.41 |
| Salinas, CACalifornia | — | $761.53 |
| San Diego, CACalifornia | — | $777.46 |
| Marin County, CACalifornia | — | $880.91 |
| San Francisco, CACalifornia | — | $879.41 |
| San Benito County, CACalifornia | — | $901.55 |
| Santa Clara County, CACalifornia | — | $895.42 |
| San Luis Obispo, CACalifornia | — | $749.68 |
| Santa Cruz, CACalifornia | — | $783.28 |
| Santa Maria, CACalifornia | — | $763.84 |
| Santa Rosa, CACalifornia | — | $790.96 |
| Stockton, CACalifornia | — | $731.19 |
| Vallejo, CACalifornia | — | $833.92 |
| Visalia, CACalifornia | — | $731.19 |
| Yuba City, CACalifornia | — | $731.19 |
| ColoradoColorado | — | $727.07 |
| ConnecticutConnecticut | — | $753.44 |
| Fort Lauderdale, FLFlorida | — | $747.64 |
| Rest of FloridaFlorida | — | $709.69 |
| Atlanta, GAGeorgia | — | $722.87 |
| Rest of GeorgiaGeorgia | — | $668.47 |
| Hawaii, Guam, HIHawaii | — | $746.76 |
| IowaIowa | — | $643.30 |
| IdahoIdaho | — | $648.80 |
| East St. Louis, ILIllinois | — | $716.75 |
| Rest of IllinoisIllinois | — | $693.85 |
| Suburban Chicago, ILIllinois | — | $753.70 |
| IndianaIndiana | — | $652.39 |
| KansasKansas | — | $643.29 |
| KentuckyKentucky | — | $654.97 |
| New Orleans, LALouisiana | — | $687.06 |
| Rest of LouisianaLouisiana | — | $655.14 |
| Metropolitan Boston, MAMassachusetts | — | $794.51 |
| Rest of MassachusettsMassachusetts | — | $723.98 |
| Baltimore area, MDMaryland | — | $751.98 |
| Rest of MarylandMaryland | — | $710.30 |
| Rest of MaineMaine | — | $655.37 |
| Southern Maine, MEMaine | — | $686.29 |
| Detroit, MIMichigan | — | $721.63 |
| Rest of MichiganMichigan | — | $674.72 |
| MinnesotaMinnesota | — | $687.86 |
| Metropolitan Kansas City, MOMissouri | — | $679.19 |
| Metropolitan St. Louis, MOMissouri | — | $685.88 |
| Rest of MissouriMissouri | — | $645.96 |
| MississippiMississippi | — | $635.17 |
| MontanaMontana | — | $706.34 |
| North CarolinaNorth Carolina | — | $661.71 |
| North DakotaNorth Dakota | — | $680.24 |
| NebraskaNebraska | — | $645.91 |
| New HampshireNew Hampshire | — | $718.54 |
| Northern New JerseyNew Jersey | — | $792.85 |
| Rest of New JerseyNew Jersey | — | $759.55 |
| New MexicoNew Mexico | — | $679.61 |
| NevadaNevada | — | $699.50 |
| NYC suburbs and Long Island, NYNew York | — | $840.34 |
| Poughkeepsie and northern NYC suburbs, NYNew York | — | $766.99 |
| Queens, NYNew York | — | $819.03 |
| Rest of New YorkNew York | — | $671.84 |
| OhioOhio | — | $669.38 |
| OklahomaOklahoma | — | $650.60 |
| Portland, OROregon | — | $746.58 |
| Rest of OregonOregon | — | $691.62 |
| Metropolitan Philadelphia, PAPennsylvania | — | $736.75 |
| Rest of PennsylvaniaPennsylvania | — | $668.75 |
| Puerto RicoPuerto Rico | — | $710.50 |
| Rhode IslandRhode Island | — | $720.27 |
| South CarolinaSouth Carolina | — | $667.15 |
| South DakotaSouth Dakota | — | $677.15 |
| TennesseeTennessee | — | $646.90 |
| Austin, TXTexas | — | $726.80 |
| Beaumont, TXTexas | — | $664.61 |
| Brazoria, TXTexas | — | $694.72 |
| Dallas, TXTexas | — | $700.54 |
| Fort Worth, TXTexas | — | $696.82 |
| Galveston, TXTexas | — | $697.70 |
| Houston, TXTexas | — | $721.86 |
| Rest of TexasTexas | — | $680.23 |
| UtahUtah | — | $676.14 |
| VirginiaVirginia | — | $686.16 |
| Virgin Islands, VIUnited States Virgin Islands | — | $710.50 |
| VermontVermont | — | $680.35 |
| Rest of WashingtonWashington | — | $721.70 |
| King County, WAWashington | — | $807.56 |
| WisconsinWisconsin | — | $657.86 |
| West VirginiaWest Virginia | — | $669.12 |
| WyomingWyoming | — | $694.97 |
26850 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.
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 26850 rate is calculated
Each of 26850’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 · 26850
RVUs × geographic indexes × conversion factor
Work6.96
6.96 RVUs× 1.000 GPCI
Practice expense12.87
12.87 RVUs× 1.000 GPCI
Malpractice1.32
1.32 RVUs× 1.000 GPCI
Adjusted RVUs
21.1500
Conversion factor
$33.4009
Medicare rate
$706.43
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
2,696
- Code
- 26850
- Physician work
- 6.96
- Practice expense
- 12.87
- Malpractice
- 1.32
GPCI2026.csv
40
- Locality
- Delaware
- Physician work
- 1.005
- Practice expense
- 0.988
- Malpractice
- 0.899
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 6.96 | × 1.005 | 6.9948 |
| Practice expense | 12.87 | × 0.988 | 12.7156 |
| Malpractice | 1.32 | × 0.899 | 1.1867 |
| Total RVUs | 20.8970 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Delaware$697.98
Facility: (6.96 × 1.005 + 12.87 × 0.988 + 1.32 × 0.899) × $33.4009 = $697.98
Payment rules and modifiers for 26850
26850 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 26850
Knuckle fusion, metacarpophalangeal joint
| 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) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| 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 · 26850
Knuckle fusion, metacarpophalangeal joint
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 51 · payment effect
With and without the modifier
26850 without 51 · national facility
$706.43
Knuckle fusion, metacarpophalangeal joint
26850-51 · Second procedure: 50%
$353.22
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%).
How 26850 has changed in Delaware
26850 · 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 | $697.98 | RVU26D |
| 2026-07-01 | Not available in this setting | $697.98 | RVU26C |
| 2026-04-01 | Not available in this setting | $697.98 | RVU26B |
| 2026-01-01 | Not available in this setting | $697.98 | RVU26A |
| 2025-10-01 | Not available in this setting | $717.28 | RVU25D |
| 2025-07-01 | Not available in this setting | $717.28 | RVU25C |
| 2025-04-01 | Not available in this setting | $717.28 | RVU25B |
| 2025-01-01 | Not available in this setting | $717.28 | RVU25A |
| 2024-10-01 | Not available in this setting | $739.82 | RVU24D |
| 2024-07-01 | Not available in this setting | $739.82 | RVU24C |
| 2024-04-01 | Not available in this setting | $739.82 | RVU24B |
| 2024-03-09 | Not available in this setting | $739.82 | RVU24AR |
| 2024-01-01 | Not available in this setting | $727.74 | RVU24A |
| 2023-10-01 | Not available in this setting | $760.28 | RVU23D |
| 2023-07-01 | Not available in this setting | $760.28 | RVU23C |
| 2023-04-01 | Not available in this setting | $760.28 | RVU23B |
| 2023-01-01 | Not available in this setting | $760.28 | RVU23A |
| 2022-10-01 | Not available in this setting | $778.71 | RVU22D |
| 2022-07-01 | Not available in this setting | $778.71 | RVU22C |
| 2022-04-01 | Not available in this setting | $778.71 | RVU22B |
| 2022-01-01 | Not available in this setting | $778.71 | RVU22A |
| 2021-10-01 | Not available in this setting | $769.25 | RVU21D |
| 2021-07-01 | Not available in this setting | $769.25 | RVU21C |
| 2021-04-01 | Not available in this setting | $769.25 | RVU21B |
| 2021-01-01 | Not available in this setting | $769.25 | RVU21A |
| 2020-10-01 | Not available in this setting | $743.49 | RVU20D |
| 2020-07-01 | Not available in this setting | $743.49 | RVU20C |
| 2020-04-01 | Not available in this setting | $743.49 | RVU20B |
| 2020-01-01 | Not available in this setting | $743.49 | RVU20A |
| 2019-10-01 | Not available in this setting | $717.13 | RVU19D |
| 2019-07-01 | Not available in this setting | $717.13 | RVU19C |
| 2019-04-01 | Not available in this setting | $717.13 | RVU19B |
| 2019-01-01 | Not available in this setting | $717.13 | RVU19A |
| 2018-10-01 | Not available in this setting | $720.01 | RVU18D |
| 2018-07-01 | Not available in this setting | $720.01 | RVU18C |
| 2018-04-01 | Not available in this setting | $720.01 | RVU18B |
| 2018-01-01 | Not available in this setting | $720.01 | RVU18AR1 |
| 2017-10-01 | Not available in this setting | $716.89 | RVU17D |
| 2017-07-01 | Not available in this setting | $716.89 | RVU17C |
| 2017-04-01 | Not available in this setting | $716.89 | RVU17B |
| 2017-01-01 | Not available in this setting | $716.89 | RVU17A |
| 2016-10-01 | Not available in this setting | $715.84 | RVU16D |
| 2016-07-01 | Not available in this setting | $715.84 | RVU16C |
| 2016-04-01 | Not available in this setting | $715.84 | RVU16B |
| 2016-01-01 | Not available in this setting | $715.84 | RVU16A |
| 2015-10-01 | Not available in this setting | $717.66 | RVU15D |
| 2015-07-01 | Not available in this setting | $717.66 | RVU15C |
| 2015-04-01 | Not available in this setting | $714.09 | RVU15B |
| 2015-01-01 | Not available in this setting | $714.09 | RVU15A |
| 2014-10-01 | Not available in this setting | $703.44 | RVU14D |
| 2014-07-01 | Not available in this setting | $703.44 | RVU14C |
| 2014-04-01 | Not available in this setting | $703.44 | RVU14B |
| 2014-01-01 | Not available in this setting | $703.44 | RVU14A |
| 2013-10-01 | Not available in this setting | $701.50 | RVU13D |
| 2013-07-01 | Not available in this setting | $701.50 | RVU13C |
| 2013-04-01 | Not available in this setting | $701.50 | RVU13B |
| 2013-01-01 | Not available in this setting | $701.50 | 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
26850 billing questions
When should 26852 be reported instead?
Use 26852 when the MCP fusion includes autogenous bone graft. Internal fixation by itself does not distinguish 26852 from 26850.
Is internal fixation included in 26850?
Yes. The code covers MCP fusion with or without internal fixation.
Does 26850 describe a finger MCP joint or an interphalangeal joint?
It describes the joint at the base of a finger, where the finger meets the hand. Fusion of a finger interphalangeal joint is in the 26860 code family.
Should modifier 50 be used for bilateral MCP fusions?
No. CMS identifies bilateral adjustment as inappropriate for this descriptor and anatomy.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
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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