CPT code 21811: Rib fixation, unilateral, 1-3 ribs2026 Medicare rate & RVUs in Delaware

Reports internal fixation of one to three fractured ribs on one side, including thoracoscopic visualization when used during operative stabilization.

CMS RVU26DEffective Oct 1, 2026One payment locality595 Medicare services in 2024

In Delaware, Medicare pays $536.48 for 21811 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$536.48Hospital or facility

Check a contract rate as a % of Medicare · 21811 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 21811 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Delaware
  2. What 21811 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 21811 covers

The surgeon stabilizes one to three fractured ribs on one side with internal fixation, commonly when operative stabilization is selected for substantially displaced fractures or flail chest. Thoracoscopic visualization may be used and is included in the service. Thoracic or trauma surgeons typically perform the operation in an operating room, often during hospital or trauma-center care.

Select the code by the number of ribs treated with fixation on that side, and document the side, ribs stabilized, and fixation performed. 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 at 50%. For bilateral treatment, modifier 50 is paid at 150%. An assistant at surgery may be paid; 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 21811

Across 109 of 109 payment localities, the facility rate for 21811 runs from $480.20 in Wisconsin to $688.39 in Alaska. Delaware pays $536.48. The RVUs are the same everywhere; the geographic indexes change the dollars.

21811 in Delaware vs other payment areas
  1. Delaware · this page$536.48
  2. Los Angeles, CA · California$549.49+$13.01
  3. Washington, DC area · District of Columbia$592.52+$56.04
  4. Miami, FL · Florida$681.92+$145.44
  5. Chicago, IL · Illinois$660.22+$123.74
  6. Manhattan, NY · New York$635.41+$98.93
  7. Alaska · Alaska$688.39+$151.91

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

Every other payment area

21811 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$493.76
ArkansasArkansas—$487.63
ArizonaArizona—$528.96
Bakersfield, CACalifornia—$527.72
Chico, CACalifornia—$520.68
El Centro, CACalifornia—$521.11
Fresno, CACalifornia—$520.68
Hanford, CACalifornia—$520.68

21811 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
21811 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 21811 in every payment locality

How the 21811 rate is calculated

Each of 21811’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 · 21811

RVUs × geographic indexes × conversion factor

Office or facility?

Work10.52

10.52 RVUs× 1.000 GPCI

Practice expense3.19

3.19 RVUs× 1.000 GPCI

Malpractice2.60

2.60 RVUs× 1.000 GPCI

Adjusted RVUs

16.3100

Conversion factor

$33.4009

Medicare rate

$544.77

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

2,027

Code
21811
Physician work
10.52
Practice expense
3.19
Malpractice
2.60

GPCI2026.csv

40

Locality
Delaware
Physician work
1.005
Practice expense
0.988
Malpractice
0.899
Facility calculation for 21811 in Delaware
ComponentRVULocality factorAdjusted
Physician work10.52× 1.00510.5726
Practice expense3.19× 0.9883.1517
Malpractice2.60× 0.8992.3374
Total RVUs16.0617
Conversion factor× 33.4009

Facility rate, Delaware$536.48

Facility: (10.52 × 1.005 + 3.19 × 0.988 + 2.6 × 0.899) × $33.4009 = $536.48

Open 21811 in the RVU calculator

Payment rules and modifiers for 21811

The CMS indicators that decide how 21811 is paid alongside other services.

CMS payment indicators · 21811

Rib fixation, unilateral, 1-3 ribs

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)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

21811 without 50 · national facility

$544.77

Rib fixation, unilateral, 1-3 ribs

21811-50 · Bilateral: 150%

$817.16

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).

When to use modifier 50

How 21811 has changed in Delaware

21811 · 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
  1. January 1, 2015

    RVU15A

    No ratechanged toNo rate

    Held through RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D, RVU26A, RVU26B, RVU26C, RVU26D.

  2. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$536.48RVU26D
2026-07-01Not available in this setting$536.48RVU26C
2026-04-01Not available in this setting$536.48RVU26B
2026-01-01Not available in this setting$536.48RVU26A
2025-10-01Not available in this setting$570.34RVU25D
2025-07-01Not available in this setting$570.34RVU25C
2025-04-01Not available in this setting$570.34RVU25B
2025-01-01Not available in this setting$570.34RVU25A
2024-10-01Not available in this setting$585.57RVU24D
2024-07-01Not available in this setting$585.57RVU24C
2024-04-01Not available in this setting$585.57RVU24B
2024-03-09Not available in this setting$585.57RVU24AR
2024-01-01Not available in this setting$576.01RVU24A
2023-10-01Not available in this setting$593.99RVU23D
2023-07-01Not available in this setting$593.99RVU23C
2023-04-01Not available in this setting$593.99RVU23B
2023-01-01Not available in this setting$593.99RVU23A
2022-10-01Not available in this setting$606.49RVU22D
2022-07-01Not available in this setting$606.49RVU22C
2022-04-01Not available in this setting$606.49RVU22B
2022-01-01Not available in this setting$606.49RVU22A
2021-10-01Not available in this setting$608.41RVU21D
2021-07-01Not available in this setting$608.41RVU21C
2021-04-01Not available in this setting$608.41RVU21B
2021-01-01Not available in this setting$608.41RVU21A
2020-10-01Not available in this setting$629.58RVU20D
2020-07-01Not available in this setting$629.58RVU20C
2020-04-01Not available in this setting$629.58RVU20B
2020-01-01Not available in this setting$629.58RVU20A
2019-10-01Not available in this setting$634.86RVU19D
2019-07-01Not available in this setting$634.86RVU19C
2019-04-01Not available in this setting$634.86RVU19B
2019-01-01Not available in this setting$634.86RVU19A
2018-10-01Not available in this setting$637.29RVU18D
2018-07-01Not available in this setting$637.29RVU18C
2018-04-01Not available in this setting$637.29RVU18B
2018-01-01Not available in this setting$637.29RVU18AR1
2017-10-01Not available in this setting$647.27RVU17D
2017-07-01Not available in this setting$647.27RVU17C
2017-04-01Not available in this setting$647.27RVU17B
2017-01-01Not available in this setting$647.27RVU17A
2016-10-01Not available in this setting$651.42RVU16D
2016-07-01Not available in this setting$651.42RVU16C
2016-04-01Not available in this setting$651.42RVU16B
2016-01-01Not available in this setting$651.42RVU16A
2015-10-01Not available in this setting$644.95RVU15D
2015-07-01Not available in this setting$644.95RVU15C
2015-04-01Not available in this setting$641.74RVU15B
2015-01-01Not available in this setting$641.74RVU15A
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 21811 for an earlier date of service

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

Browse all communities in Delaware

21811 billing questions

How does 21811 differ from 21812?

21811 is for fixation of one to three ribs on one side. Use 21812 when four to six ribs are treated.

Is thoracoscopic visualization reported separately?

No. Thoracoscopic visualization, when used for the rib fixation, is included in this service.

How is bilateral rib fixation reported?

For bilateral treatment, report modifier 50; CMS pays the bilateral procedure at 150%.

Can an assistant surgeon be reported?

CMS allows payment for an assistant at surgery. Co-surgeons and team surgery are not permitted for this code.

What does the 0-day global period include?

Same-day preoperative and postoperative care is included. The global period is 0 days.

What happens when another procedure is performed in the same session?

The highest-valued procedure is paid in full, and other procedures are paid at 50% under the standard multiple procedure reduction.

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 21811PPRRVU2026_Oct_nonQPP.csv, line 2,027 (RVU26D)
Geographic factors for DelawareGPCI2026.csv, line 40 (RVU26D)

Open CMS sourceHow we calculate rates

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