CPT code 27601: Leg fasciotomy, posterior compartment2026 Medicare rate & RVUs in Mississippi

Surgical release of the lower leg’s posterior compartment is reported to relieve pathologic pressure, commonly in acute compartment syndrome after trauma.

CMS RVU26DEffective Oct 1, 2026One payment locality387 Medicare services in 2024

In Mississippi, Medicare pays $382.88 for 27601 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$382.88Hospital or facility

Check a contract rate as a % of Medicare · 27601 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 27601 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 27601 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 27601 covers

This operation releases the fascia surrounding the posterior compartment or compartments of the lower leg to relieve dangerous tissue pressure. Orthopedic and trauma surgeons commonly perform it urgently for compartment syndrome after injuries such as fractures or crush trauma. The operative note should identify the leg, the compartments released, and the findings that prompted decompression.

Report this code when the documented release is limited to the posterior compartment or compartments; release that also includes anterior or lateral compartments follows a different code in the family. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are paid at 50%. Bilateral reporting with modifier 50 is paid at 150%. Medicare does not pay an assistant at surgery for this service, and 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 Mississippi compares for 27601

Across 109 of 109 payment localities, the facility rate for 27601 runs from $374.13 in Arkansas to $511.86 in Alaska. Mississippi pays $382.88. The RVUs are the same everywhere; the geographic indexes change the dollars.

27601 in Mississippi vs other payment areas
  1. Mississippi · this page$382.88
  2. Los Angeles, CA · California$447.31+$64.43
  3. Washington, DC area · District of Columbia$465.75+$82.87
  4. Miami, FL · Florida$482.91+$100.03
  5. Chicago, IL · Illinois$468.92+$86.04
  6. Manhattan, NY · New York$482.47+$99.59
  7. Alaska · Alaska$511.86+$128.98

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

Every other payment area

27601 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$378.98
ArkansasArkansas—$374.13
ArizonaArizona—$407.10
Bakersfield, CACalifornia—$424.93
Chico, CACalifornia—$421.81
El Centro, CACalifornia—$421.99
Fresno, CACalifornia—$421.81
Hanford, CACalifornia—$421.81

27601 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.

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27601 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 27601 in every payment locality

How the 27601 rate is calculated

Each of 27601’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 · 27601

RVUs × geographic indexes × conversion factor

Office or facility?

Work5.90

5.90 RVUs× 1.000 GPCI

Practice expense5.50

5.50 RVUs× 1.000 GPCI

Malpractice1.12

1.12 RVUs× 1.000 GPCI

Adjusted RVUs

12.5200

Conversion factor

$33.4009

Medicare rate

$418.18

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

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

2,963

Code
27601
Physician work
5.90
Practice expense
5.50
Malpractice
1.12

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Facility calculation for 27601 in Mississippi
ComponentRVULocality factorAdjusted
Physician work5.90× 1.0005.9000
Practice expense5.50× 0.8614.7355
Malpractice1.12× 0.7390.8277
Total RVUs11.4632
Conversion factor× 33.4009

Facility rate, Mississippi$382.88

Facility: (5.9 × 1 + 5.5 × 0.861 + 1.12 × 0.739) × $33.4009 = $382.88

Open 27601 in the RVU calculator

Payment rules and modifiers for 27601

27601 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 27601

Leg fasciotomy, posterior compartment

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 · 27601

Leg fasciotomy, posterior compartment

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

27601 without 50 · national facility

$418.18

Leg fasciotomy, posterior compartment

27601-50 · Bilateral: 150%

$627.27

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 27601 has changed in Mississippi

27601 · 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$382.88RVU26D
2026-07-01Not available in this setting$382.88RVU26C
2026-04-01Not available in this setting$382.88RVU26B
2026-01-01Not available in this setting$382.88RVU26A
2025-10-01Not available in this setting$394.58RVU25D
2025-07-01Not available in this setting$394.58RVU25C
2025-04-01Not available in this setting$394.58RVU25B
2025-01-01Not available in this setting$394.58RVU25A
2024-10-01Not available in this setting$406.77RVU24D
2024-07-01Not available in this setting$406.77RVU24C
2024-04-01Not available in this setting$406.77RVU24B
2024-03-09Not available in this setting$406.77RVU24AR
2024-01-01Not available in this setting$400.13RVU24A
2023-10-01Not available in this setting$407.21RVU23D
2023-07-01Not available in this setting$407.21RVU23C
2023-04-01Not available in this setting$407.21RVU23B
2023-01-01Not available in this setting$407.21RVU23A
2022-10-01Not available in this setting$414.10RVU22D
2022-07-01Not available in this setting$414.10RVU22C
2022-04-01Not available in this setting$414.10RVU22B
2022-01-01Not available in this setting$414.10RVU22A
2021-10-01Not available in this setting$411.19RVU21D
2021-07-01Not available in this setting$411.19RVU21C
2021-04-01Not available in this setting$411.19RVU21B
2021-01-01Not available in this setting$411.19RVU21A
2020-10-01Not available in this setting$415.19RVU20D
2020-07-01Not available in this setting$415.19RVU20C
2020-04-01Not available in this setting$415.19RVU20B
2020-01-01Not available in this setting$415.19RVU20A
2019-10-01Not available in this setting$408.50RVU19D
2019-07-01Not available in this setting$408.50RVU19C
2019-04-01Not available in this setting$408.50RVU19B
2019-01-01Not available in this setting$408.50RVU19A
2018-10-01Not available in this setting$410.47RVU18D
2018-07-01Not available in this setting$410.47RVU18C
2018-04-01Not available in this setting$410.47RVU18B
2018-01-01Not available in this setting$410.47RVU18AR1
2017-10-01Not available in this setting$411.98RVU17D
2017-07-01Not available in this setting$411.98RVU17C
2017-04-01Not available in this setting$411.98RVU17B
2017-01-01Not available in this setting$411.98RVU17A
2016-10-01Not available in this setting$413.27RVU16D
2016-07-01Not available in this setting$413.27RVU16C
2016-04-01Not available in this setting$413.27RVU16B
2016-01-01Not available in this setting$413.27RVU16A
2015-10-01Not available in this setting$418.52RVU15D
2015-07-01Not available in this setting$418.52RVU15C
2015-04-01Not available in this setting$416.44RVU15B
2015-01-01Not available in this setting$416.44RVU15A
2014-10-01Not available in this setting$413.21RVU14D
2014-07-01Not available in this setting$413.21RVU14C
2014-04-01Not available in this setting$413.21RVU14B
2014-01-01Not available in this setting$413.21RVU14A
2013-10-01Not available in this setting$413.74RVU13D
2013-07-01Not available in this setting$413.74RVU13C
2013-04-01Not available in this setting$413.74RVU13B
2013-01-01Not available in this setting$413.74RVU13AR

Price 27601 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

27601 billing questions

How is this code distinguished from 27600?

This code is for release of posterior compartment or compartments. Code 27600 is for release of anterior and/or lateral compartments only.

When is 27602 more appropriate?

Use 27602 when the documented decompression includes posterior compartments as well as anterior and/or lateral compartments. This code describes posterior compartment release without those additional compartments.

What should the operative report document?

The report should identify the treated leg and the compartments released, and explain the clinical findings or pressure problem prompting the operation.

How is bilateral surgery reported?

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

Is an assistant surgeon payable?

CMS applies a statutory restriction, so an assistant at surgery is not paid for this code. Co-surgeons and team surgery are also not permitted.

Are related postoperative visits included?

Yes. 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
RVUs for 27601PPRRVU2026_Oct_nonQPP.csv, line 2,963 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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