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Official Description

Arteriovenous anastomosis, open; by upper arm cephalic vein transposition

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An open arteriovenous anastomosis is a surgical procedure designed to create a direct connection between an artery and a vein, facilitating hemodialysis access for patients with renal failure. This specific procedure, identified by CPT® Code 36818, involves the transposition of the upper arm cephalic vein. The primary goal of this intervention is to establish a reliable vascular access point that can withstand the repeated needle insertions required for hemodialysis treatments. The procedure begins with the surgeon making incisions in the upper arm to access both the brachial artery and the cephalic vein. The cephalic vein is carefully evaluated to ensure it is patent (open) and of sufficient size to accommodate the demands of hemodialysis. Following this assessment, a subcutaneous tunnel is created to facilitate the movement of the vein to a more superficial position, allowing for easier access. The cephalic vein is then mobilized, and any branches are ligated to prepare it for transection. The vein is cut to an appropriate length, pulled through the tunnel, and then sutured to the brachial artery, completing the anastomosis. This procedure is critical for patients requiring regular hemodialysis, as it provides a durable and accessible site for vascular access.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The open arteriovenous anastomosis procedure, coded as CPT® 36818, is indicated for patients requiring hemodialysis access. The specific indications for this procedure include:

  • End-Stage Renal Disease (ESRD) Patients diagnosed with end-stage renal disease who require regular hemodialysis treatments to manage their condition.
  • Need for Reliable Vascular Access Patients who need a durable and reliable vascular access point for repeated needle insertions during hemodialysis.
  • Inadequate Peripheral Veins Patients with inadequate peripheral veins that are unsuitable for the placement of a central venous catheter or other forms of vascular access.

2. Procedure

The procedure for an open arteriovenous anastomosis by upper arm cephalic vein transposition involves several critical steps, which are detailed as follows:

  • Step 1: Incision and Exposure The surgeon begins by making a medial incision in the upper arm to expose the brachial artery. A second incision is made laterally to access the cephalic vein. This dual incision approach allows for direct visualization of both the artery and vein, which is essential for the subsequent steps of the procedure.
  • Step 2: Assessment of the Cephalic Vein Once the incisions are made, the cephalic vein is carefully assessed to ensure it is patent and of adequate size. This evaluation is crucial, as the success of the anastomosis depends on the vein's ability to handle the blood flow required for hemodialysis.
  • Step 3: Creation of Subcutaneous Tunnel After confirming the suitability of the cephalic vein, a subcutaneous tunnel is created between the two incisions. This tunnel will facilitate the transposition of the cephalic vein to a more superficial location, making it easier to access for future hemodialysis treatments.
  • Step 4: Mobilization and Transection of the Cephalic Vein The cephalic vein is then mobilized, and any branches are ligated to prepare it for transection. The mobilized segment of the cephalic vein is carefully transected, ensuring it is of adequate length for the transposition and tunneling to the brachial artery.
  • Step 5: Pulling the Cephalic Vein Through the Tunnel The transected cephalic vein is pulled through the created tunnel, positioning it for the anastomosis with the brachial artery.
  • Step 6: Anastomosis to the Brachial Artery An incision is made in the brachial artery, and the segment of the cephalic vein is sutured (anastomosed) to the brachial artery at the arteriotomy site. This connection establishes the necessary access for hemodialysis.

3. Post-Procedure

After the completion of the open arteriovenous anastomosis, patients typically require monitoring for any complications, such as bleeding or infection at the incision sites. Post-procedure care includes managing pain and ensuring proper healing of the surgical sites. Patients may also need to undergo follow-up evaluations to assess the patency of the newly created access point and to ensure that it is functioning effectively for hemodialysis. Education on care of the access site and signs of complications is also an important aspect of post-procedure management.

Short Descr AV FUSE UPPR ARM CEPHALIC
Medium Descr ARVEN ANAST OPN UPR ARM CEPHALIC VEIN TRPOS
Long Descr Arteriovenous anastomosis, open; by upper arm cephalic vein transposition
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
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) P1G - Major procedure - Other
MUE 1
CCS Clinical Classification 57 - Creation, revision and removal of arteriovenous fistula or vessel-to-vessel cannula for dialysis

This is a primary code that can be used with these additional add-on codes.

36907 CPT Add On MPFS Status: Active Code APC N ASC N1 Transluminal balloon angioplasty, central dialysis segment, performed through dialysis circuit, including all imaging and radiological supervision and interpretation required to perform the angioplasty (List separately in addition to code for primary procedure)
36908 CPT Add On MPFS Status: Active Code APC N ASC N1 Transcatheter placement of intravascular stent(s), central dialysis segment, performed through dialysis circuit, including all imaging and radiological supervision and interpretation required to perform the stenting, and all angioplasty in the central dialysis segment (List separately in addition to code for primary procedure)
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)
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
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).
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.
74 Discontinued out-patient hospital/ambulatory surgery center (asc) procedure after administration of anesthesia: due to extenuating circumstances or those that threaten the well being of the patient, the physician may terminate a surgical or diagnostic procedure after the administration of anesthesia (local, regional block(s), general) or after the procedure was started (incision made, intubation started, scope inserted, etc). under these circumstances, the procedure started but terminated can be reported by its usual procedure number and the addition of modifier 74. note: the elective cancellation of a service prior to the administration of anesthesia and/or surgical preparation of the patient should not be reported. for physician reporting of a discontinued procedure, see modifier 53.
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
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
SG Ambulatory surgical center (asc) facility service
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
2011-01-01 Changed Short description changed.
2005-01-01 Added First appearance in code book in 2005.
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