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Official Description

Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; removal of central cannula(e) by sternotomy or thoracotomy, 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 procedures used to provide long-term support for patients with severe heart and lung dysfunction. 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 33986 specifically pertains to the removal of central cannulae in patients aged 6 years and older, utilizing a transthoracic approach, which may include sternotomy or thoracotomy. This procedure is performed by a physician and requires careful handling to minimize complications, such as air embolism, during the removal of the cannulae. The technique involves specific positioning of the patient and meticulous surgical steps to ensure safe and effective removal of the cannulae, followed by appropriate closure of the surgical site.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

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

  • Severe Respiratory Distress: Conditions such as acute respiratory distress syndrome (ARDS) or severe pneumonia that compromise the ability of the lungs to oxygenate blood.
  • Cardiac Failure: Situations where the heart is unable to pump effectively, such as cardiogenic shock or severe heart failure.
  • Post-Cardiac Surgery Support: Patients who require additional support following complex cardiac surgeries.
  • Severe Trauma: Cases of significant trauma that lead to compromised heart and lung function.

2. Procedure

The procedure for the removal of central cannulae via sternotomy or thoracotomy involves several critical steps to ensure patient safety and procedural efficacy:

  • Step 1: The patient is positioned appropriately, typically in a slight Trendelenburg or supine position, to facilitate access to the chest cavity and minimize the risk of air embolism during the procedure.
  • Step 2: The ECMO/ECLS circuit tubing is clamped to prevent blood flow during the removal process, ensuring that the patient remains stable throughout the procedure.
  • Step 3: The previous chest incision is carefully opened to access the central cannulae and associated vessels. This step requires precision to avoid damaging surrounding tissues.
  • Step 4: The cannulae and the vessels are identified, and stay sutures are cut to facilitate the removal process. This step is crucial for ensuring that the cannulae can be withdrawn smoothly.
  • Step 5: The cannulae are withdrawn from the vessel using rapid, steady pressure. If the patient is intubated and on ventilator support, the cannulae should be removed during the inspiratory phase to reduce the risk of air entering the bloodstream.
  • Step 6: After the cannulae have been successfully removed, the vessel is closed using vascular suture to ensure hemostasis and prevent bleeding.
  • Step 7: The fascia is then closed with absorbable suture, followed by closure of the skin with either sutures or staples, depending on the surgeon's preference.
  • Step 8: Finally, a sterile dressing is applied to the surgical site to protect it from infection 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 surgical site. Patients may require continued respiratory support and close observation in a critical care setting. The recovery process will vary based on the patient's overall condition and the complexity of the procedure performed. Follow-up assessments are essential to ensure proper healing and to address any potential complications that may arise following the removal of the cannulae.

Short Descr ECMO/ECLS RMVL CTR CANNULA
Medium Descr ECMO/ECLS RMVL OF CENTRAL CANNULA 6 YRS & OLDER
Long Descr Extracorporeal membrane oxygenation (ECMO)/extracorporeal life support (ECLS) provided by physician; removal of central cannula(e) by sternotomy or thoracotomy, 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) 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
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).
GC This service has been performed in part by a resident under the direction of a teaching physician
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.
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.
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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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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