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The CPT® Code 93464 refers to a physiologic exercise study, which is a specialized procedure that assesses hemodynamic measurements before and after the administration of a pharmacologic agent. This study is typically performed in conjunction with a heart catheterization procedure, where the patient's cardiovascular response is evaluated under controlled conditions. The term 'physiologic exercise study' encompasses various forms of exercise testing, such as bicycle or arm ergometry, which are used to simulate physical stress on the heart. During this procedure, a range of hemodynamic parameters is meticulously measured to provide insights into the heart's performance and response to the pharmacologic agent. These measurements include critical indicators such as cardiac index, cardiac output, central venous pressure, mean arterial pressure, and others that reflect the heart's efficiency and the overall circulatory system's status. The process involves obtaining baseline hemodynamic data prior to the administration of the pharmacologic agent, followed by additional measurements during and after the agent's administration. The physician interprets these findings, comparing the pre- and post-administration data to assess the hemodynamic response, and subsequently provides a comprehensive written report detailing the results. It is important to note that this code is applicable only once in addition to the primary heart catheterization procedure, emphasizing its role as a supplementary assessment tool in cardiovascular diagnostics.
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The physiologic exercise study represented by CPT® Code 93464 is indicated for various clinical scenarios where detailed hemodynamic assessment is necessary. The following conditions may warrant the performance of this procedure:
The procedure associated with CPT® Code 93464 involves several critical steps to ensure accurate hemodynamic assessment. The following outlines the procedural steps:
Post-procedure care following the physiologic exercise study involves monitoring the patient for any immediate reactions to the pharmacologic agent administered during the study. Patients may be observed for changes in vital signs and any potential side effects. The physician will review the findings from the hemodynamic measurements and discuss the results with the patient, including any implications for further treatment or management of their cardiovascular condition. Follow-up appointments may be scheduled to evaluate the patient's ongoing health status and response to any prescribed therapies based on the study's findings.
| Short Descr | EXERCISE W/HEMODYNAMIC MEAS | Medium Descr | PHYSIOLOGIC EXERCISE STUDY & HEMODYNAMIC MEASU | Long Descr | Physiologic exercise study (eg, bicycle or arm ergometry) including assessing hemodynamic measurements before and after (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) | 1 - Diagnostic Tests for Radiology Services | 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 | Items and Services Packaged into APC Rates | Type of Service (TOS) | 1 - Medical Care | Berenson-Eggers TOS (BETOS) | T2D - Other tests - other | MUE | 1 | CCS Clinical Classification | 47 - Diagnostic cardiac catheterization, coronary arteriography |
This is an add-on code that must be used in conjunction with one of these primary codes.
| 33477 | MPFS Status: Active Code APC C Transcatheter pulmonary valve implantation, percutaneous approach, including pre-stenting of the valve delivery site, when performed | 93451 | MPFS Status: Active Code APC J1 ASC G2 Right heart catheterization including measurement(s) of oxygen saturation and cardiac output, when performed | 93452 | MPFS Status: Active Code APC J1 ASC G2 Left heart catheterization including intraprocedural injection(s) for left ventriculography, imaging supervision and interpretation, when performed | 93453 | MPFS Status: Active Code APC J1 ASC G2 Combined right and left heart catheterization including intraprocedural injection(s) for left ventriculography, imaging supervision and interpretation, when performed | 93456 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right heart catheterization | 93457 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) including intraprocedural injection(s) for bypass graft angiography and right heart catheterization | 93458 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed | 93459 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed, catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography | 93460 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right and left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed | 93461 | MPFS Status: Active Code APC J1 ASC G2 Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right and left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed, catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography | 93593 | MPFS Status: Carrier Priced APC J1 Right heart catheterization for congenital heart defect(s) including imaging guidance by the proceduralist to advance the catheter to the target zone; normal native connections | 93594 | MPFS Status: Carrier Priced APC J1 Right heart catheterization for congenital heart defect(s) including imaging guidance by the proceduralist to advance the catheter to the target zone; abnormal native connections | 93595 | MPFS Status: Carrier Priced APC J1 Left heart catheterization for congenital heart defect(s) including imaging guidance by the proceduralist to advance the catheter to the target zone, normal or abnormal native connections | 93596 | MPFS Status: Carrier Priced APC J1 Right and left heart catheterization for congenital heart defect(s) including imaging guidance by the proceduralist to advance the catheter to the target zone(s); normal native connections | 93597 | MPFS Status: Carrier Priced APC J1 Right and left heart catheterization for congenital heart defect(s) including imaging guidance by the proceduralist to advance the catheter to the target zone(s); abnormal native connections |
| 26 | Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number. | 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). | 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. | CR | Catastrophe/disaster related | GC | This service has been performed in part by a resident under the direction of a teaching physician | GZ | Item or service expected to be denied as not reasonable and necessary | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | 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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| 2017-01-01 | Changed | Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category. |
| 2013-01-01 | Changed | Medium Descriptor changed. |
| 2011-04-04 | Changed | Multiple Surgery indicator for modifier -26 changed to 0 |
| 2011-01-01 | Added | Added |
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