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Official Description

Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; removal of peripheral (arterial and/or venous) cannula(e), open, 6 years and older

© 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 techniques used to provide long-term support for patients with severe heart and lung conditions. These procedures involve the use of a machine that takes over the function of the heart and lungs by circulating blood outside the body through an artificial lung, where it is oxygenated before being returned to the bloodstream. The process is critical for patients who are unable to maintain adequate oxygenation or perfusion due to various medical conditions. The procedure described by CPT® Code 33984 specifically pertains to the removal of peripheral arterial and/or venous cannula(e) in patients aged 6 years and older. This removal is performed using an open technique, which involves surgical access to the site where the cannula(e) is inserted. Proper technique during this procedure is essential to minimize complications, such as air embolism, and to ensure the safe and effective removal of the cannula(e) from the patient's vascular system.

© 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 Failure Patients with conditions such as acute respiratory distress syndrome (ARDS), pneumonia, or other pulmonary issues that severely impair gas exchange.
  • Cardiac Failure Individuals suffering from cardiogenic shock, severe heart failure, or those awaiting heart transplantation.
  • Post-Cardiac Surgery Support Patients who require temporary support following complex cardiac surgeries.

2. Procedure

The procedure for the removal of peripheral arterial and/or venous cannula(e) using an open technique involves several critical steps to ensure patient safety and procedural efficacy:

  • Step 1: Patient Positioning The patient is positioned in a slight Trendelenburg or supine position to facilitate access to the cannula site and to help reduce the risk of air embolism during the procedure.
  • Step 2: Circuit Preparation The ECMO/ECLS circuit tubing is clamped to prevent blood flow during the removal process, ensuring that the patient remains stable and minimizing the risk of bleeding.
  • Step 3: Accessing the Cannula The dressing and/or sutures that secure the cannula(e) to the skin are removed. The skin is then incised, or a previous incision is opened if the cannula was inserted using an open technique, allowing access to the vessel.
  • Step 4: Cutting Sutures The sutures that secure the cannula(e) to the vessel are carefully cut to facilitate the removal of the cannula(e) without causing damage to the surrounding tissue.
  • Step 5: Cannula Withdrawal The cannula(e) is withdrawn from the vessel using rapid, steady pressure in a parallel line to the skin. This technique is crucial to minimize trauma to the vessel.
  • Step 6: Timing of Removal To reduce the risk of air embolism, the removal should be performed during the inspiratory phase of the ventilator cycle for intubated patients. If the patient is conscious and able to follow directions, the cannula should be withdrawn during exhalation or Valsalva maneuver.
  • Step 7: Closing the Vessel After the cannula(e) is removed, the opening in the vessel is closed with sutures to ensure hemostasis and prevent complications.
  • Step 8: Skin Closure The skin is then closed using sutures or staples, followed by the application of a sterile dressing to protect the site and promote healing.

3. Post-Procedure

Post-procedure care involves monitoring the patient for any signs of complications, such as bleeding or infection at the cannula site. The patient should be observed for hemodynamic stability and any changes in respiratory status. Follow-up assessments may include checking the surgical site for proper healing and ensuring that the patient is recovering without adverse effects. Additionally, appropriate pain management should be provided as needed to ensure patient comfort during the recovery phase.

Short Descr ECMO/ECLS RMVL PRPH CANNULA
Medium Descr ECMO/ECLS RMVL PRPH CANNULA OPEN 6 YRS & OLDER
Long Descr Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; removal of peripheral (arterial and/or venous) cannula(e), open, 6 years and older
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
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).
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.
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
CR Catastrophe/disaster related
GC This service has been performed in part by a resident under the direction of a teaching physician
LT Left side (used to identify procedures performed on the left side of the body)
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
RT Right side (used to identify procedures performed on the right side of the body)
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
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
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2015-01-01 Added Added
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