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Official Description

Insertion and placement of flow directed catheter (eg, Swan-Ganz) for monitoring purposes

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

A flow directed catheter, commonly known as a pulmonary artery catheter (PAC), Swan-Ganz catheter, or right heart catheter, is a specialized medical device used for monitoring various hemodynamic parameters within the cardiovascular system. The procedure involves the insertion and placement of this catheter into a major vein, typically located in the neck, upper chest, or groin, to facilitate accurate monitoring of cardiac pressures and other vital metrics. The catheter is designed to be advanced through the venous system into the right atrium and subsequently into the pulmonary artery, allowing for the assessment of pulmonary artery pressure, pulmonary capillary wedge pressure, and cardiac output. Additionally, it provides critical information regarding mixed venous oxygen saturation and oxygen levels in the right heart chambers. This procedure is essential for patients requiring close monitoring of their cardiovascular status, particularly in critical care settings, where precise measurements can guide treatment decisions and interventions.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The insertion and placement of a flow directed catheter (CPT® Code 93503) is indicated for various clinical scenarios where monitoring of hemodynamic parameters is essential. The following conditions may warrant the use of this procedure:

  • Cardiac Monitoring: Patients with suspected or known heart failure, myocardial infarction, or other cardiac conditions requiring close observation of cardiac function.
  • Shock Management: Individuals experiencing shock of various etiologies, including cardiogenic, hypovolemic, or septic shock, where monitoring of fluid status and cardiac output is critical.
  • Postoperative Care: Patients recovering from major cardiac or thoracic surgery who need continuous monitoring of hemodynamic status to ensure stability and guide further treatment.
  • Severe Respiratory Distress: Cases where pulmonary artery pressures need to be monitored due to severe respiratory conditions or pulmonary hypertension.

2. Procedure

The procedure for the insertion and placement of a flow directed catheter involves several critical steps to ensure proper placement and functionality. Each step is outlined as follows:

  • Step 1: Preparation of the Insertion Site The skin over the planned insertion site, which may be located in the side of the neck, upper chest, or groin, is thoroughly cleansed to minimize the risk of infection. A local anesthetic is then injected to numb the area, ensuring patient comfort during the procedure.
  • Step 2: Incision and Accessing the Vein A small incision is made in the skin overlying a major vein, most commonly the jugular, subclavian, or femoral vein. This incision allows for direct access to the vein, facilitating the subsequent steps of catheter insertion.
  • Step 3: Threading the Catheter A small nick incision is made in the vein to facilitate the introduction of the flow directed catheter. The catheter is then carefully threaded through the vein, advancing it into the right atrium and further into the pulmonary artery. This step requires precision to ensure that the catheter reaches the correct anatomical location.
  • Step 4: Verification of Catheter Positioning After the catheter is placed, separate radiographs are obtained to confirm the correct positioning of the catheter within the pulmonary artery. This imaging step is crucial to ensure that the catheter is in the appropriate location for accurate monitoring.
  • Step 5: Connection to Monitoring Equipment Once the catheter is confirmed to be in the correct position, it is connected to the appropriate monitoring equipment. This equipment will allow for continuous assessment of cardiac pressures, pulmonary artery pressure, pulmonary capillary wedge pressure, cardiac output, and oxygen saturation levels in the right heart chambers.

3. Post-Procedure

After the insertion and placement of the flow directed catheter, several post-procedure care considerations are essential for patient safety and effective monitoring. Patients are typically monitored closely for any signs of complications, such as bleeding, infection, or improper catheter placement. Continuous assessment of hemodynamic parameters is conducted to ensure that the catheter is functioning correctly and providing accurate readings. Additionally, healthcare providers may perform regular checks on the insertion site to monitor for any adverse reactions. The expected recovery period may vary depending on the patient's overall condition and the reason for catheter placement, but ongoing monitoring and assessment are critical during this time to ensure optimal patient outcomes.

Short Descr INSERT/PLACE HEART CATHETER
Medium Descr INSERTION FLOW DIRECTED CATHETER FOR MONITORING
Long Descr Insertion and placement of flow directed catheter (eg, Swan-Ganz) for monitoring purposes
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
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) 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 Hospital Part B services paid through a comprehensive APC
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P2F - Major procedure, cardiovascular-Other
MUE 2
CCS Clinical Classification 204 - Swan-Ganz catheterization for monitoring
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.
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
GC This service has been performed in part by a resident under the direction of a teaching physician
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
AQ Physician providing a service in an unlisted health professional shortage area (hpsa)
RT Right side (used to identify procedures performed on the right side of the body)
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
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
CR Catastrophe/disaster related
X3 Episodic/broad services: for reporting services by clinicians who have broad responsibility for the comprehensive needs of the patient that is limited to a defined period and circumstance such as a hospitalization; reporting clinician service examples include but are not limited to the hospitalist's services rendered providing comprehensive and general care to a patient while admitted to the hospital
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).
56 Preoperative management only: when 1 physician or other qualified health care professional performed the preoperative care and evaluation and another performed the surgical procedure, the preoperative component may be identified by adding modifier 56 to the usual procedure number.
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.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
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).
99 Multiple modifiers: under certain circumstances 2 or more modifiers may be necessary to completely delineate a service. in such situations modifier 99 should be added to the basic procedure, and other applicable modifiers may be listed as part of the description of the service.
AG Primary physician
AI Principal physician of record
AS Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
FP Service provided as part of family planning program
FS Split (or shared) evaluation and management visit
GA Waiver of liability statement issued as required by payer policy, individual case
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
GZ Item or service expected to be denied as not reasonable and necessary
LT Left side (used to identify procedures performed on the left side of the body)
Q0 Investigational clinical service provided in a clinical research study that is in an approved clinical research study
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
X2 Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services
XP Separate practitioner, a service that is distinct because it was performed by a different practitioner
Date
Action
Notes
2021-01-01 Note Guidelines changed.
2011-04-04 Changed Practice Expense RVU changed
2011-01-01 Changed Medium description changed.
Pre-1990 Added Code added.
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