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Official Description

Arterial exposure with creation of graft conduit (eg, chimney graft) to facilitate arterial perfusion for ECMO/ECLS (List separately in addition to code for primary procedure)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 33987 involves the creation of a graft conduit, such as a chimney graft, to enhance arterial perfusion in patients undergoing Extracorporeal Membrane Oxygenation (ECMO) or Extracorporeal Life Support (ECLS). This intervention is particularly crucial when the arterial vessels are small or when there is a risk of limb ischemia due to cannulation. The graft conduit serves to facilitate both antegrade and retrograde blood flow by deploying a covered stent parallel to the ECMO/ECLS cannulae, typically within the femoral or axillary vessels. The design of the stent allows it to extend proximally, thereby preserving blood flow to the side branches of the main arterial vessel, which is essential for maintaining adequate perfusion to the surrounding tissues. The graft conduit can be implemented either as a planned procedure during the initial placement of the ECMO/ECLS cannulae or as a rescue intervention to salvage side branches that may be compromised later in the course of therapy. The insertion of the graft conduit generally necessitates an open technique, often referred to as a cut down, to gain access to the vessel. Confirmation of the proper placement of the graft conduit or stent is typically achieved through imaging techniques such as fluoroscopy or transesophageal echocardiography (TEE), ensuring that the procedure is performed accurately and effectively.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 33987 is indicated for specific clinical scenarios where arterial perfusion is compromised during ECMO or ECLS support. The following conditions may warrant the use of this procedure:

  • Small Arterial Vessels The presence of small arterial vessels that may not adequately support the required blood flow during ECMO/ECLS.
  • Limb Ischemia Development of limb ischemia due to cannulation, necessitating intervention to restore adequate blood flow.

2. Procedure

The procedure for creating a graft conduit involves several critical steps to ensure successful arterial perfusion. Each step is outlined as follows:

  • Step 1: Patient Preparation The patient is positioned appropriately, and standard monitoring is established. Anesthesia is administered as required, and the surgical site is prepared and draped in a sterile manner.
  • Step 2: Accessing the Vessel An open technique, often referred to as a cut down, is employed to access the targeted arterial vessel. This may involve making an incision in the skin and underlying tissues to expose the vessel adequately.
  • Step 3: Placement of the Graft Conduit Once the vessel is accessed, a covered stent is deployed parallel to the ECMO/ECLS cannulae. This stent is positioned within the femoral or axillary vessel to facilitate both antegrade and retrograde blood flow.
  • Step 4: Confirming Placement The correct placement of the graft conduit or stent is confirmed using imaging techniques such as fluoroscopy or transesophageal echocardiography (TEE). This step is crucial to ensure that blood flow to the side branches of the main vessel is preserved.
  • Step 5: Closure After confirming proper placement, the incision site is closed in layers, and standard post-operative care protocols are initiated.

3. Post-Procedure

Following the procedure, patients are typically monitored closely for any signs of complications, such as bleeding or infection at the incision site. Continuous assessment of limb perfusion is essential to ensure that the graft conduit is functioning effectively. Patients may require additional imaging studies to evaluate the patency of the graft and the adequacy of arterial flow. Recovery protocols will vary based on the patient's overall condition and the complexity of the ECMO/ECLS support being provided.

Short Descr ARTERY EXPOS/GRAFT ARTERY
Medium Descr ARTERY EXPOS/GRAFT ARTERY PERFUSION ECMO/ECLS
Long Descr Arterial exposure with creation of graft conduit (eg, chimney graft) to facilitate arterial perfusion for ECMO/ECLS (List separately in addition to code for primary procedure)
Status Code Active Code
Global Days ZZZ - Code Related to Another Service
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No 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) 0 - 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) 1 - Team surgeons could be paid, though...
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) P2F - Major procedure, cardiovascular-Other
MUE 1

This is an add-on code that must be used in conjunction with one of these primary codes.

33953 MPFS Status: Active Code APC C Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; insertion of peripheral (arterial and/or venous) cannula(e), open, birth through 5 years of age
33954 MPFS Status: Active Code APC C Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; insertion of peripheral (arterial and/or venous) cannula(e), open, 6 years and older
33955 MPFS Status: Active Code APC C Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; insertion of central cannula(e) by sternotomy or thoracotomy, birth through 5 years of age
33956 MPFS Status: Active Code APC C Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; insertion of central cannula(e) by sternotomy or thoracotomy, 6 years and older
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.
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).
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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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2015-01-01 Added Added
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