93458

Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation, and report; with right heart catheterization

CPT code 93458 describes a comprehensive diagnostic cardiac catheterization procedure that includes both selective coronary angiography and right heart catheterization. During this procedure, catheters are advanced into the coronary arteries to inject contrast medium and visualize the coronary circulation under fluoroscopy, identifying stenoses, occlusions, and anatomical variations. Simultaneously, a catheter is placed into the right side of the heart (right atrium, right ventricle, and pulmonary artery) to measure intracardiac pressures, assess oxygen saturation, and calculate cardiac output. This combined approach allows for a thorough evaluation of both coronary artery disease and right heart function, often utilized in complex cases or when pulmonary hypertension or specific valvular issues are suspected in conjunction with coronary pathology.

Clinical Indications

  • Evaluation of known or suspected coronary artery disease (CAD), including severity and suitability for revascularization.
  • Unexplained chest pain, dyspnea, or other cardiac symptoms suggestive of myocardial ischemia or structural heart disease.
  • Assessment of myocardial viability or regional wall motion abnormalities.
  • Pre-operative evaluation for non-coronary cardiac surgery (e.g., valvular replacement) to rule out significant CAD.
  • Evaluation of heart failure of unknown etiology, particularly when both coronary and right heart pathologies are considered.
  • Assessment of pulmonary hypertension or right ventricular dysfunction.
  • Initial diagnostic work-up for patients presenting with acute coronary syndromes (e.g., STEMI, NSTEMI, unstable angina) who also require right heart assessment.
  • Evaluation of valvular heart disease, especially when associated with CAD or pulmonary hypertension.

Procedure Steps

  1. Patient preparation, including obtaining informed consent, pre-procedure fasting, and appropriate sedation/anesthesia.
  2. Establishment of vascular access, typically percutaneously via the femoral or radial artery for left heart catheterization/coronary angiography, and via the femoral, jugular, or subclavian vein for right heart catheterization.
  3. Advancement of a catheter from the venous access site through the right atrium, right ventricle, and into the pulmonary artery to measure pressures (right atrial, right ventricular, pulmonary artery, pulmonary capillary wedge pressure) and obtain oxygen saturation samples.
  4. Cardiac output measurement (e.g., by thermodilution or Fick method) as part of the right heart catheterization.
  5. Advancement of a separate catheter from the arterial access site retrograde through the aorta to the coronary ostia (left and right coronary arteries).
  6. Selective engagement of the coronary arteries and injection of radiopaque contrast material under fluoroscopic guidance.
  7. Acquisition of multiple cineangiographic views of the coronary arteries to visualize their anatomy, identify stenoses, and assess collateral circulation.
  8. Continuous monitoring of vital signs, electrocardiogram, and arterial/intracardiac pressures throughout the procedure.
  9. Removal of catheters and achievement of hemostasis at the access sites.
  10. Generation of a comprehensive report detailing hemodynamic findings, coronary anatomy, and any abnormalities.

Coding Guidelines

  • CPT code 93458 is a comprehensive code for combined selective coronary angiography and right heart catheterization. It includes selective catheterization of the coronary arteries, injection of contrast, imaging supervision and interpretation, and the final report for both components.
  • This code should not be reported in conjunction with codes for standalone right heart catheterization (e.g., 93451, 93453) or standalone coronary angiography (e.g., 93454, 93455, 93456, 93457).
  • If left ventriculography is performed in addition to the services described by 93458, report CPT code 93460 (left ventriculography) separately.
  • Cardiac output measurements, pressure recordings, and oximetry are considered integral components of the right heart catheterization and are not separately billable.
  • Evaluation of native coronary artery bypass grafts (venous or arterial) can be reported with add-on code +93462.
  • Closure device application (e.g., for vascular access) may be reported separately with the appropriate add-on codes if performed (e.g., specific codes for femoral artery closure devices, if applicable).
  • Documentation must clearly support the medical necessity for both coronary angiography and right heart catheterization to justify the use of this combined code.

Associated ICD-10 Codes