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Official Description

Repair, acquired or traumatic arteriovenous fistula; extremities

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An acquired or traumatic arteriovenous fistula is a pathological condition characterized by an abnormal connection between an artery and a vein, which can occur due to trauma or injury to blood vessels. This condition may manifest immediately following the injury or develop gradually over time. The presence of this abnormal communication allows blood to flow from the artery, which operates under high pressure, directly into the vein. Since the walls of veins are not designed to withstand such high-pressure blood flow, they can become distended and enlarged, leading to further complications in the cardiovascular system. If left untreated, the increased blood flow can result in various cardiovascular issues. The procedure described by CPT® Code 35190 involves the surgical repair of this fistula located in the extremities. This repair process includes the careful dissection of the fistula from surrounding tissues, isolation of the affected artery and vein, severing the fistulous connection, and subsequent repair of the vessels, which may involve sutures or the use of synthetic patches or vein grafts. Proper closure of the overlying tissues is also an essential part of the procedure, ensuring that the surgical site heals appropriately.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure described by CPT® Code 35190 is indicated for the repair of an acquired or traumatic arteriovenous fistula located in the extremities. This condition may arise from various circumstances, including:

  • Trauma to Blood Vessels - Injury resulting from accidents or surgical procedures that create an abnormal connection between an artery and a vein.
  • Progressive Symptoms - Development of symptoms over time that may include swelling, pain, or changes in skin color due to altered blood flow.
  • Cardiovascular Complications - Potential complications arising from the high-pressure blood flow into the venous system, which may necessitate surgical intervention to prevent further health issues.

2. Procedure

The surgical procedure for repairing an acquired or traumatic arteriovenous fistula in the extremities involves several critical steps, which are outlined as follows:

  • Step 1: Angiography - Prior to the surgical repair, a separately reportable angiography is performed to visualize and delineate the course of the arteriovenous fistula. This imaging is essential for planning the surgical approach.
  • Step 2: Exposure of the Fistula - The surgeon makes an incision to expose the fistula. This involves careful dissection to free the fistula from the surrounding tissues, ensuring that the anatomical structures are preserved as much as possible.
  • Step 3: Isolation of the Fistula - Clamps are placed on both the artery and the vein to isolate the fistula. This step is crucial to prevent blood flow during the repair process, allowing for a clear and safe working environment.
  • Step 4: Severing the Fistulous Communication - The abnormal connection between the artery and vein is then severed. This step is critical to eliminate the high-pressure flow from the artery into the vein.
  • Step 5: Repair of the Vessels - After severing the fistula, the surgeon repairs the artery and vein. This may involve suturing the vessels back together or using a synthetic patch or vein graft to ensure proper closure and restore normal blood flow.
  • Step 6: Hemostasis and Closure - Once the repairs are made, the clamps are removed, and hemostasis is checked to ensure there is no bleeding at the repair site. Finally, the overlying tissues are closed in layers to promote optimal healing.

3. Post-Procedure

After the completion of the surgical repair of the arteriovenous fistula, post-procedure care is essential for recovery. Patients are typically monitored for any signs of complications, such as bleeding or infection at the surgical site. Pain management may be provided as needed, and patients are advised on activity restrictions to allow for proper healing. Follow-up appointments are crucial to assess the success of the repair and to ensure that normal blood flow is restored without complications. The healthcare team will provide specific instructions regarding wound care and any necessary lifestyle modifications to support recovery.

Short Descr REPAIR ACQ AV FISTULA XTR
Medium Descr RPR ACQUIRED/TRAUMATIC AV FISTULA EXTREMITIES
Long Descr Repair, acquired or traumatic arteriovenous fistula; extremities
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) 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 Hospital Part B services paid through a comprehensive APC
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P2F - Major procedure, cardiovascular-Other
MUE 2
CCS Clinical Classification 61 - Other OR procedures on vessels other than head and neck
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).
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.
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).
AG Primary physician
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
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)
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
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
Action
Notes
2025-01-01 Changed Short and Medium Descriptions changed.
2013-01-01 Changed Medium Descriptor changed.
Pre-1990 Added Code added.
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