CPT code 27893: Leg fasciotomy, posterior compartments, with debridement2026 Medicare rate & RVUs in Guam
Reports posterior leg compartment release with removal of nonviable muscle or nerve, typically for acute compartment syndrome requiring operative decompression.
CMS doesn’t publish an office rate for 27893 in Guam.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 27893 covers
This operation opens the deep fascia over the posterior compartment or compartments of the leg to relieve dangerous pressure and includes debridement of nonviable muscle and/or nerve. It is typically performed by an orthopedic or trauma surgeon in an operating room for acute compartment syndrome, such as after a severe leg injury or ischemic insult. The operative report should identify the posterior compartment work and document the devitalized tissue removed.
Choose this code when posterior compartment decompression includes that debridement; a posterior release without debridement is a different service. The preoperative day and 90 days of related postoperative care are included in the major-surgery global period. When other procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. 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.
27893 in Hawaii, Guam, HI
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam, HI | Unavailable | $602.21 |
How the 27893 rate is calculated
Each of 27893’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 · 27893
RVUs × geographic indexes × conversion factor
Work7.70
7.70 RVUs× 1.000 GPCI
Practice expense8.25
8.25 RVUs× 1.000 GPCI
Malpractice1.64
1.64 RVUs× 1.000 GPCI
Adjusted RVUs
17.5900
Conversion factor
$33.4009
Medicare rate
$587.52
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 27893
27893 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 27893
Leg fasciotomy, posterior compartments, with debridement
| 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) | 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 · 27893
Leg fasciotomy, posterior compartments, with debridement
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
27893 without 50 · national facility
$587.52
Leg fasciotomy, posterior compartments, with debridement
27893-50 · Bilateral: 150%
$881.28
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).
27893 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 27601Leg fasciotomyPosterior compartment
- Both involve posterior leg compartment decompression. Choose 27893 when nonviable muscle and/or nerve is debrided as part of the release; 27601 is the alternative without that debridement.
- 27892Leg fasciotomyAnterior/lateral with debridement
- 27892 is for anterior and/or lateral compartment decompression with debridement. 27893 is for posterior compartment or compartments.
- 27894Leg fasciotomyAnterior, lateral, and posterior
- 27894 describes decompression of all leg compartments with debridement. Use 27893 for posterior compartment or compartments rather than all-compartment release.
27893 billing questions
How does this differ from 27601?
Use 27893 for posterior leg compartment decompression that includes debridement of nonviable muscle and/or nerve. Code 27601 describes posterior compartment decompression without that debridement.
Is the debridement separately reported?
The code includes debridement of nonviable muscle and/or nerve as part of the posterior compartment decompression. Do not separately report that same debridement as though it were a separate service.
What documentation supports choosing 27893?
Document the posterior compartment or compartments released and the nonviable muscle and/or nerve debrided. The operative report should make clear that the service was more than a decompression without debridement.
How is bilateral surgery reported?
Report bilateral performance with modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant surgeon or co-surgeon be reported?
Assistant-at-surgery payment is allowed only when medical necessity is documented. Co-surgeons and team surgery are 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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