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Official Description

Decompression fasciotomy, leg; anterior and/or lateral compartments only

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A decompression fasciotomy of the lower leg is a surgical procedure aimed at alleviating the pressure within the muscle compartments of the leg, specifically targeting the anterior and/or lateral compartments. The lower leg is anatomically divided into three distinct muscle compartments: anterior, lateral, and posterior. Each of these compartments is encased in a tough, fibrous tissue known as fascia, which does not stretch. When conditions such as long bone fractures, crush injuries, or other forms of trauma occur, swelling can develop within these compartments. This swelling leads to increased interstitial pressure, which can compromise blood flow and result in tissue necrosis, ultimately causing permanent functional impairment of the limb if not addressed promptly. The primary goal of the decompression fasciotomy is to relieve this pressure by surgically opening the fascia, thereby allowing for the expansion of the swollen muscle tissue. In the case of CPT® Code 27600, the procedure specifically involves the anterior and/or lateral compartments, where a longitudinal incision is made over the intermuscular septum to facilitate access and decompression. This intervention is critical in preventing severe complications associated with compartment syndrome, ensuring the preservation of limb function and overall patient health.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The decompression fasciotomy procedure is indicated for the treatment of compartment syndrome, which can arise from various conditions that lead to increased pressure within the muscle compartments of the leg. The following are specific indications for performing this procedure:

  • Long Bone Fractures - Fractures of the long bones in the leg can lead to swelling and increased pressure within the muscle compartments.
  • Crush Injuries - Trauma that results in crush injuries can cause significant swelling and subsequent compartment syndrome.
  • Other Trauma - Any form of trauma that leads to swelling within the muscle compartments may necessitate a fasciotomy to prevent tissue damage.

2. Procedure

The procedure for decompression fasciotomy of the anterior and/or lateral compartments involves several critical steps to ensure effective decompression and minimize complications.

  • Step 1: Incision A longitudinal incision is made over the intermuscular septum that separates the anterior and lateral compartments. This incision provides access to the fascia that needs to be opened for decompression.
  • Step 2: Anterior Compartment Decompression For decompression of the anterior compartment, a small nick is made in the fascia approximately midway between the intermuscular septum and the tibial crest. The fascia is then carefully opened both proximally and distally using scissors to relieve the pressure within the compartment.
  • Step 3: Lateral Compartment Decompression To decompress the lateral compartment, the fascia is incised parallel to the fibular shaft. During this step, it is crucial to identify and protect the peroneal nerve to prevent nerve damage during the procedure.

3. Post-Procedure

After the decompression fasciotomy, post-procedure care is essential for optimal recovery. Patients are typically monitored for signs of improved circulation and reduction in symptoms associated with compartment syndrome. Wound care is critical to prevent infection at the incision sites. Additionally, rehabilitation may be necessary to restore function and strength to the affected limb. The expected recovery time can vary based on the extent of the injury and the individual patient's healing process. Follow-up appointments are important to assess the healing of the fascia and the overall recovery of the muscle compartments.

Short Descr DECOMPRESSION OF LOWER LEG
Medium Descr DCMPRN FASCT LEG ANT&/LAT COMPARTMENTS ONLY
Long Descr Decompression fasciotomy, leg; anterior and/or lateral compartments only
Status Code Active Code
Global Days 090 - Major Surgery
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 2 - Standard payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 1 - 150% payment adjustment for bilateral procedures applies.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 1 - Co-surgeons could be paid, though supporting documentation is required...
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Surgical procedure on ASC list in CY 2007; payment based on OPPS relative payment weight.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 160 - Other therapeutic procedures on muscles and tendons
LT Left side (used to identify procedures performed on the left side of the body)
SG Ambulatory surgical center (asc) facility service
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
50 Bilateral procedure: unless otherwise identified in the listings, bilateral procedures that are performed at the same session, should be identified by adding modifier 50 to the appropriate 5 digit code. note: this modifier should not be appended to designated "add-on" codes (see appendix d).
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
62 Two surgeons: when 2 surgeons work together as primary surgeons performing distinct part(s) of a procedure, each surgeon should report his/her distinct operative work by adding modifier 62 to the procedure code and any associated add-on code(s) for that procedure as long as both surgeons continue to work together as primary surgeons. each surgeon should report the co-surgery once using the same procedure code. if additional procedure(s) (including add-on procedure(s) are performed during the same surgical session, separate code(s) may also be reported with modifier 62 added. note: if a co-surgeon acts as an assistant in the performance of additional procedure(s), other than those reported with the modifier 62, during the same surgical session, those services may be reported using separate procedure code(s) with modifier 80 or modifier 82 added, as appropriate.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
79 Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.)
80 Assistant surgeon: surgical assistant services may be identified by adding modifier 80 to the usual procedure number(s).
82 Assistant surgeon (when qualified resident surgeon not available): the unavailability of a qualified resident surgeon is a prerequisite for use of modifier 82 appended to the usual procedure code number(s).
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
GC This service has been performed in part by a resident under the direction of a teaching physician
GW Service not related to the hospice patient's terminal condition
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
RT Right side (used to identify procedures performed on the right side of the body)
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
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Notes
2013-01-01 Changed Medium Descriptor changed.
Pre-1990 Added Code added.
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