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Official Description

Amputation, thigh, through femur, any level; open, circular (guillotine)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

Guillotine amputation through the femur is a surgical procedure primarily indicated for patients who have sustained significant trauma resulting in heavily contaminated wounds or those suffering from severe infections in the leg. This type of amputation is characterized by its open, circular technique, which allows for the removal of the thigh at any level through the femur. The decision regarding the specific level of amputation is made based on the extent of the injury or the severity of the infection present. During the procedure, careful attention is given to the surrounding tissues. The skin is initially marked to facilitate the development of skin flaps as distally as possible, ensuring that adequate tissue is preserved for potential future closure. The incision is made down to the deep fascia, which is then allowed to retract, exposing the underlying muscle. The muscle is incised in a circular manner around the femur, also allowing it to retract. As the procedure progresses, nerves are transected upon encounter, and blood vessels are meticulously ligated and cut to prevent excessive bleeding. The femur itself is then transected in alignment with the retracted muscle. After the amputation, the stump is intentionally left open, and appropriate dressings are applied to manage the wound. Once the risk of infection has diminished, a secondary procedure may be performed to close the stump or to re-amputate at a higher level if necessary.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The guillotine amputation through the femur is indicated in specific clinical scenarios, particularly when the following conditions are present:

  • Severe Trauma: This procedure is often performed following significant injuries that result in heavily contaminated wounds, where the risk of infection is high.
  • Severe Infection: It is indicated for patients with a severely infected leg, where the infection poses a threat to the patient's health and necessitates immediate surgical intervention.

2. Procedure

The guillotine amputation procedure involves several critical steps that ensure the effective removal of the thigh through the femur:

  • Step 1: The surgical team begins by marking the skin to delineate the area for the amputation. This marking is crucial as it allows for the development of skin flaps that can be created as distally as possible, preserving as much tissue as feasible for potential closure.
  • Step 2: An incision is made through the marked skin down to the deep fascia. This incision is carefully executed to minimize trauma to surrounding tissues, and the skin is allowed to retract to expose the underlying structures.
  • Step 3: The muscle surrounding the femur is then incised in a circular fashion. This technique facilitates the retraction of the muscle, providing clear access to the femur for the subsequent steps of the procedure.
  • Step 4: As the procedure progresses, any nerves encountered during the dissection are transected. This step is essential to prevent pain and ensure that the amputation is performed effectively.
  • Step 5: Blood vessels are identified and carefully suture ligated before being transected. This meticulous approach helps to control bleeding and maintain hemostasis throughout the procedure.
  • Step 6: The femur is then transected in line with the retracted muscle, completing the amputation. This step is critical to ensure that the amputation is performed at the appropriate level based on the initial assessment of the injury or infection.
  • Step 7: After the femur has been transected, the stump is intentionally left open. Dressings are applied to the open stump to protect the area and manage any potential bleeding or drainage.

3. Post-Procedure

Following the guillotine amputation, the patient will require careful monitoring and post-operative care. The open stump will be dressed appropriately to prevent infection and manage any drainage. Once the risk of infection has subsided, a secondary procedure may be necessary to close the stump or to perform a re-amputation at a higher level if indicated. The timing of this secondary intervention will depend on the patient's recovery and the resolution of any infection or complications.

Short Descr AMPUTATE LEG AT THIGH
Medium Descr AMPUTATION THIGH THRU FEMUR OPEN CIRCULAR
Long Descr Amputation, thigh, through femur, any level; open, circular (guillotine)
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) 2 - Payment restriction for assistants at surgery does not apply 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 Inpatient Procedures, not paid under OPPS
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P3D - Major procedure, orthopedic - other
MUE 1
CCS Clinical Classification 157 - Amputation of lower extremity
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).
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).
AF Specialty physician
AG Primary physician
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
CR Catastrophe/disaster related
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
LT Left side (used to identify procedures performed on the left side of the body)
RT Right side (used to identify procedures performed on the right side of the body)
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