CPT code 23170: Sequestrectomy, clavicle2026 Medicare rate & RVUs in Connecticut

Report this operation when a surgeon removes a separated segment of devitalized clavicular bone, commonly as treatment for chronic osteomyelitis.

CMS RVU26DEffective Oct 1, 2026One payment locality17 Medicare services in 2024

In Connecticut, Medicare pays $575.59 for 23170 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$575.59Hospital or facility

Check a contract rate as a % of Medicare · 23170 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 23170 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 23170 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 23170 covers

An orthopedic surgeon exposes the clavicle and removes a sequestrum, a fragment of dead bone separated from viable bone. The operation is typically performed in an operating room when infection or another process has left devitalized bone requiring removal. The code is specific to the clavicle; the operative report should identify the bone and describe removal of the sequestrum.

Select this code for removal of a clavicular sequestrum, rather than a partial or total clavicle resection or excision of a bone lesion. Document the indication, involved site, operative findings, and work performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery, modifier 50 is paid at 150%. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Assistant-at-surgery payment is restricted; 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 Connecticut compares for 23170

Across 109 of 109 payment localities, the facility rate for 23170 runs from $480.62 in Arkansas to $657.03 in San Benito County, CA. Connecticut pays $575.59. The RVUs are the same everywhere; the geographic indexes change the dollars.

23170 in Connecticut vs other payment areas
  1. Connecticut · this page$575.59
  2. Los Angeles, CA · California$580.72+$5.13
  3. Washington, DC area · District of Columbia$604.69+$29.10
  4. Miami, FL · Florida$626.86+$51.27
  5. Chicago, IL · Illinois$607.70+$32.11
  6. Manhattan, NY · New York$626.31+$50.72
  7. Alaska · Alaska$652.64+$77.05

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

Every other payment area

23170 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$487.24
ArkansasArkansas—$480.62
ArizonaArizona—$525.69
Bakersfield, CACalifornia—$550.52
Chico, CACalifornia—$546.44
El Centro, CACalifornia—$546.69
Fresno, CACalifornia—$546.44
Hanford, CACalifornia—$546.44

23170 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
23170 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 23170 in every payment locality

How the 23170 rate is calculated

Each of 23170’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 · 23170

RVUs × geographic indexes × conversion factor

Office or facility?

Work7.03

7.03 RVUs× 1.000 GPCI

Practice expense7.68

7.68 RVUs× 1.000 GPCI

Malpractice1.48

1.48 RVUs× 1.000 GPCI

Adjusted RVUs

16.1900

Conversion factor

$33.4009

Medicare rate

$540.76

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

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

2,177

Code
23170
Physician work
7.03
Practice expense
7.68
Malpractice
1.48

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Facility calculation for 23170 in Connecticut
ComponentRVULocality factorAdjusted
Physician work7.03× 1.0207.1706
Practice expense7.68× 1.0778.2714
Malpractice1.48× 1.2101.7908
Total RVUs17.2328
Conversion factor× 33.4009

Facility rate, Connecticut$575.59

Facility: (7.03 × 1.02 + 7.68 × 1.077 + 1.48 × 1.21) × $33.4009 = $575.59

Open 23170 in the RVU calculator

Payment rules and modifiers for 23170

23170 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 23170

Sequestrectomy, clavicle

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are 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)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.69/0.21Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 23170

Sequestrectomy, clavicle

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.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

23170 without 50 · national facility

$540.76

Sequestrectomy, clavicle

23170-50 · Bilateral: 150%

$811.14

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 23170 has changed in Connecticut

23170 · 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$575.59RVU26D
2026-07-01Not available in this setting$575.59RVU26C
2026-04-01Not available in this setting$575.59RVU26B
2026-01-01Not available in this setting$575.59RVU26A
2025-10-01Not available in this setting$604.53RVU25D
2025-07-01Not available in this setting$604.53RVU25C
2025-04-01Not available in this setting$604.53RVU25B
2025-01-01Not available in this setting$604.53RVU25A
2024-10-01Not available in this setting$617.15RVU24D
2024-07-01Not available in this setting$617.15RVU24C
2024-04-01Not available in this setting$617.15RVU24B
2024-03-09Not available in this setting$617.15RVU24AR
2024-01-01Not available in this setting$607.07RVU24A
2023-10-01Not available in this setting$619.04RVU23D
2023-07-01Not available in this setting$619.04RVU23C
2023-04-01Not available in this setting$619.04RVU23B
2023-01-01Not available in this setting$619.04RVU23A
2022-10-01Not available in this setting$621.16RVU22D
2022-07-01Not available in this setting$621.16RVU22C
2022-04-01Not available in this setting$621.16RVU22B
2022-01-01Not available in this setting$621.16RVU22A
2021-10-01Not available in this setting$621.05RVU21D
2021-07-01Not available in this setting$621.05RVU21C
2021-04-01Not available in this setting$621.05RVU21B
2021-01-01Not available in this setting$621.05RVU21A
2020-10-01Not available in this setting$627.89RVU20D
2020-07-01Not available in this setting$627.89RVU20C
2020-04-01Not available in this setting$627.89RVU20B
2020-01-01Not available in this setting$627.89RVU20A
2019-10-01Not available in this setting$631.55RVU19D
2019-07-01Not available in this setting$631.55RVU19C
2019-04-01Not available in this setting$631.55RVU19B
2019-01-01Not available in this setting$631.55RVU19A
2018-10-01Not available in this setting$630.11RVU18D
2018-07-01Not available in this setting$630.11RVU18C
2018-04-01Not available in this setting$630.11RVU18B
2018-01-01Not available in this setting$630.11RVU18AR1
2017-10-01Not available in this setting$627.43RVU17D
2017-07-01Not available in this setting$627.43RVU17C
2017-04-01Not available in this setting$627.43RVU17B
2017-01-01Not available in this setting$627.43RVU17A
2016-10-01Not available in this setting$620.30RVU16D
2016-07-01Not available in this setting$620.30RVU16C
2016-04-01Not available in this setting$620.30RVU16B
2016-01-01Not available in this setting$620.30RVU16A
2015-10-01Not available in this setting$630.67RVU15D
2015-07-01Not available in this setting$630.67RVU15C
2015-04-01Not available in this setting$627.53RVU15B
2015-01-01Not available in this setting$627.53RVU15A
2014-10-01Not available in this setting$618.44RVU14D
2014-07-01Not available in this setting$618.44RVU14C
2014-04-01Not available in this setting$618.44RVU14B
2014-01-01Not available in this setting$618.44RVU14A
2013-10-01Not available in this setting$614.12RVU13D
2013-07-01Not available in this setting$614.12RVU13C
2013-04-01Not available in this setting$614.12RVU13B
2013-01-01Not available in this setting$614.12RVU13AR

Price 23170 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

  • Ansonia
  • Ball Pond
  • Baltic
  • Bantam
  • Bethel
  • Bethlehem Village
  • Bigelow Corners
  • Blue Hills

Browse all communities in Connecticut

23170 billing questions

How is this different from partial claviculectomy?

This code is for removing a separated fragment of devitalized clavicular bone. A partial claviculectomy describes resection of part of the clavicle rather than sequestrectomy.

What operative details support reporting this code?

Document that the involved bone is the clavicle, identify the sequestrum, and describe its operative removal and the clinical indication.

Does the 90-day global period include related follow-up?

Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.

How are bilateral procedures and multiple procedures paid?

Bilateral reporting with modifier 50 is paid at 150%. In the same session, the highest-valued procedure is paid in full and additional procedures at 50%.

Can an assistant, co-surgeon, or surgical team be reported?

Assistant-at-surgery payment is subject to a statutory restriction. Co-surgeons and team surgery are not permitted for this code.

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 23170PPRRVU2026_Oct_nonQPP.csv, line 2,177 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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