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2025 CPT code 33859

Ascending aorta graft with cardiopulmonary bypass and valve suspension for aortic disease other than dissection (e.g., aneurysm).

Use this code specifically for ascending aortic graft procedures involving cardiopulmonary bypass and valve suspension when the underlying condition is *not* an aortic dissection.

Modifiers may be applicable in specific situations (e.g., increased procedural services, multiple procedures).

Medical necessity is established by documenting the presence of an ascending aortic aneurysm or other aortic disease (excluding dissection) that poses a significant risk to the patient's health, justifying surgical intervention.

The cardiovascular surgeon is responsible for performing the procedure, including initiating cardiopulmonary bypass, excising the diseased aorta, and implanting the graft. They also ensure proper valve suspension and function.

IMPORTANT:For aortic dissection, use 33858. For complete transverse arch graft placement, use 33871.Use add-on code 33866 for aortic hemiarch graft when performed with ascending aortic grafts (33858, 33859, 33863, 33864).

In simple words: This surgery fixes a weakened part of the main artery coming out of the heart.A heart-lung machine is used, and the surgeon replaces the weak section with a strong tube.The heart valve is also carefully repositioned.

This procedure involves repairing the ascending aorta using a graft, with cardiopulmonary bypass and valve suspension.It is used to treat conditions like aortic aneurysms, but not dissections. The surgeon opens the chest, initiates cardiopulmonary bypass, and may induce hypothermia.The diseased section of the aorta is removed and replaced with a graft. The aortic valve is then re-attached within the graft.

Example 1: A patient presents with an ascending aortic aneurysm and undergoes surgical repair using a graft, with cardiopulmonary bypass and valve suspension., A patient with a dilated ascending aorta, not due to dissection, undergoes this procedure to prevent potential rupture., A patient with an ascending aortic aneurysm and aortic valve insufficiency requires both aneurysm repair and valve suspension within the graft.

Documentation should include operative reports detailing the surgical approach, aneurysm size and location, type of graft used, valve suspension technique, and any complications encountered.

  • Revenue Code: P2B
  • Payment Status: Active
  • Specialties:Cardiac Surgery, Cardiovascular Surgery, Thoracic Surgery
  • Place of Service:Inpatient Hospital
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