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Official Description

Free jejunum transfer with microvascular anastomosis

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 43496 refers to a surgical procedure known as a free jejunum transfer with microvascular anastomosis. This procedure is commonly described as a free jejunal graft or flap. It involves the surgical harvesting of a segment of the jejunum, which is a part of the small intestine, to be used for reconstruction or repair in another area of the body. The process begins with an incision in the abdomen to access the jejunum. The surgeon carefully exposes the jejunum and identifies the specific segment that will be harvested. It is crucial to mark the distal end of the graft segment to ensure that it is oriented correctly, allowing for normal peristalsis, which is the wave-like muscle contractions that move food through the digestive tract. During the procedure, the artery that supplies blood to the segment of jejunum being harvested is located, and the associated blood vessels are meticulously dissected back to their branching points. These vessels are then suture ligated and divided to prepare the graft for removal. The jejunum is subsequently divided, and the graft segment is excised along with its supplying blood vessels. To maintain continuity of the small bowel, the remaining distal and proximal segments of the jejunum are anastomosed, or surgically connected. Once the graft segment is removed, it is transferred to the designated site where it will be placed. This transfer site is prepared as part of a separately reportable procedure. The orientation of the jejunal graft is critical, and the surgeon ensures that the marked distal end is correctly positioned. The serosal layer of the jejunum is then secured to the surrounding tissue to relieve tension on the anastomosis sites. Finally, the proximal and distal ends of the graft are anastomosed to the remaining esophageal or bowel segments, followed by the performance of microvascular anastomosis, which involves connecting the jejunal blood vessels to the vessels at the anastomosis site to restore blood flow.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The free jejunum transfer with microvascular anastomosis is indicated for various surgical scenarios where reconstruction or repair of the gastrointestinal tract is necessary. The following conditions may warrant this procedure:

  • Esophageal Reconstruction This procedure is often performed in cases where there is a need to reconstruct the esophagus due to conditions such as cancer, trauma, or congenital defects.
  • Intestinal Repair It may be indicated for repairing defects in the small intestine, particularly when a segment has been removed due to disease or injury.
  • Head and Neck Reconstruction The free jejunal graft can be utilized in reconstructive surgeries following resection of tumors in the head and neck region, where there is a need for tissue replacement.

2. Procedure

The procedure for free jejunum transfer with microvascular anastomosis involves several critical steps, each essential for the successful completion of the surgery. The following outlines the procedural steps:

  • Step 1: Incision and Exposure The surgeon begins by making an incision in the abdomen to access the jejunum. This incision allows for the exposure of the jejunum, which is the middle section of the small intestine.
  • Step 2: Identification of Graft Segment Once the jejunum is exposed, the surgeon identifies the specific segment to be harvested. This segment is carefully selected based on the needs of the reconstruction.
  • Step 3: Marking the Graft The distal end of the graft segment is marked to ensure proper orientation during the transfer. This marking is crucial for maintaining normal peristalsis after the graft is placed.
  • Step 4: Dissection of Blood Vessels The surgeon locates the artery supplying the segment of jejunum to be harvested. Blood vessels are meticulously dissected back to their branching points off the supplying vessels, where they are suture ligated and divided.
  • Step 5: Division and Removal of Graft The jejunum is then divided, and the graft segment is removed along with its supplying blood vessels. This step is critical for obtaining the necessary tissue for the graft.
  • Step 6: Anastomosis of Remaining Segments To maintain continuity of the small bowel, the remaining distal and proximal jejunal segments are anastomosed, ensuring that the digestive tract remains functional.
  • Step 7: Transfer of Graft Segment The free segment of jejunum is then transferred to the site where it will be placed. This transfer site is prepared as part of a separately reportable procedure.
  • Step 8: Orientation and Securing of Graft The jejunal graft is oriented correctly by locating the mark indicating the distal end. The jejunal serosa is secured to the surrounding tissue to relieve tension on the anastomosis sites.
  • Step 9: Anastomosis of Graft Ends Finally, the proximal and distal ends of the graft are anastomosed to the remaining esophageal or bowel segments, followed by the performance of microvascular anastomosis of the jejunal vessels to the vessels at the anastomosis site.

3. Post-Procedure

After the completion of the free jejunum transfer with microvascular anastomosis, post-procedure care is essential for optimal recovery. Patients are typically monitored for any signs of complications, such as infection or graft failure. The recovery process may involve a hospital stay where the surgical site is observed, and the patient's overall condition is assessed. Nutritional support may be necessary, especially if the patient has difficulty resuming normal eating patterns. Follow-up appointments are crucial to evaluate the success of the graft and to ensure that the anastomosis sites are healing properly. Additional interventions may be required based on the patient's recovery progress and any complications that may arise.

Short Descr FREE JEJUNUM FLAP MICROVASC
Medium Descr FREE JEJUNUM TRSF W/MICROVASC ANASTOMOSIS
Long Descr Free jejunum transfer with microvascular anastomosis
Status Code Carriers Price the 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) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
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) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 75 - Small bowel resection
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.
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).
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
Date
Action
Notes
2011-01-01 Changed Short description changed.
1997-01-01 Added First appearance in code book in 1997.
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