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Official Description

Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; reposition peripheral (arterial and/or venous) cannula(e), open, birth through 5 years of age (includes fluoroscopic guidance, when performed)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Extracorporeal membrane oxygenation (ECMO) and extracorporeal life support (ECLS) are terms that refer to advanced medical procedures designed to provide long-term support for patients experiencing severe heart and lung failure. These procedures involve the use of an artificial lung to oxygenate blood outside the body, allowing it to be circulated back into the bloodstream. The process is critical for patients who cannot maintain adequate oxygenation or perfusion due to various medical conditions. In the context of CPT® Code 33959, the focus is on the repositioning of peripheral arterial and/or venous cannula(e) in pediatric patients, specifically those from birth through 5 years of age. This procedure is essential because the effectiveness of ECMO/ECLS can be compromised if the cannula(e) are not optimally positioned. Cannula migration can lead to inadequate blood flow and oxygenation, necessitating careful repositioning to ensure that the patient receives the best possible support. The procedure includes the use of fluoroscopic guidance, which aids in visualizing the cannula placement during the repositioning process, ensuring precision and safety. This code is specifically designated for younger patients, while a different code, 33962, is applicable for patients aged 6 years and older, highlighting the importance of age-specific considerations in the management of ECMO/ECLS procedures.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

Extracorporeal membrane oxygenation (ECMO) and extracorporeal life support (ECLS) are indicated for patients experiencing severe respiratory or cardiac failure. The following conditions may warrant the use of ECMO/ECLS:

  • Severe Respiratory Distress Patients with conditions such as acute respiratory distress syndrome (ARDS) or severe pneumonia that leads to inadequate oxygenation.
  • Cardiac Failure Patients suffering from cardiogenic shock or severe heart failure where traditional support methods are insufficient.
  • Post-Cardiac Surgery Support Patients requiring support following complex cardiac surgeries where heart function is compromised.
  • Congenital Heart Defects Infants with congenital heart defects that impair normal blood flow and oxygenation.

2. Procedure

The procedure for repositioning peripheral arterial and/or venous cannula(e) in patients undergoing ECMO/ECLS involves several critical steps to ensure optimal placement and functionality:

  • Step 1: Preparation The procedure begins with the patient being positioned appropriately, and the area around the cannula site is prepared and sterilized to minimize the risk of infection. The existing dressing and/or sutures securing the cannula to the skin are carefully removed to access the cannula.
  • Step 2: Incision The physician makes an incision in the skin to access the vessel where the cannula is placed. If the cannula was previously inserted using an open technique, the existing incision may be reopened to facilitate access.
  • Step 3: Cannula Detachment The sutures that secure the cannula to the vessel are cut, allowing for the cannula to be repositioned. This step is crucial as it ensures that the cannula can be manipulated without causing damage to the surrounding tissue.
  • Step 4: Repositioning Under Fluoroscopic Guidance Utilizing fluoroscopic guidance, the physician gently pulls back the cannula or uses a snare to grasp it through the incision. The cannula is then manipulated to achieve optimal placement, which is confirmed through imaging to ensure that blood flow will be adequate.
  • Step 5: Securing the Cannula Once the cannula is correctly positioned, it is secured in place with sutures to prevent any movement that could compromise the ECMO/ECLS support. The incision is then closed appropriately.
  • Step 6: Reconnection of the ECMO/ECLS Circuit After securing the cannula, the ECMO/ECLS circuit is reconnected, and the tubing is secured to the skin using sutures and/or dressings to ensure stability and prevent dislodgement.

3. Post-Procedure

Post-procedure care involves monitoring the patient closely for any signs of complications, such as bleeding or infection at the cannula site. Continuous assessment of the ECMO/ECLS support is essential to ensure that the cannula remains optimally positioned and that blood flow is adequate. Healthcare providers will also monitor the patient's vital signs and oxygenation levels to evaluate the effectiveness of the procedure. Any necessary adjustments to the ECMO/ECLS settings will be made based on the patient's condition. Additionally, proper documentation of the procedure and any observations made during the repositioning is crucial for ongoing patient care and compliance with medical coding standards.

Short Descr ECMO/ECLS REPOS PERPH CNULA
Medium Descr ECMO/ECLS REPOS PERPH CANNULA OPEN BIRTH-5 YRS
Long Descr Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; reposition peripheral (arterial and/or venous) cannula(e), open, birth through 5 years of age (includes fluoroscopic guidance, when performed)
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
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) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
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) P2F - Major procedure, cardiovascular-Other
MUE 1
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.
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
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2015-01-01 Added Added
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