B320ZZZComputerized Tomography (CT Scan) of Thoracic Aorta

B320ZZZ is the ICD-10-PCS code for a computerized tomography (CT scan) procedure on the thoracic aorta using a none approach with none (qualifier: none). In ICD-10-PCS, computerized tomography (CT scan) means computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation.

In plain terms, this corresponds to other computerized axial tomography, the ICD-9-CM procedure title it maps to (88.38).

For a different body part, codes include B325ZZZ (bilateral common carotid arteries), B328ZZZ (bilateral internal carotid arteries), B32GZZZ (bilateral vertebral arteries), B32RZZZ (intracranial arteries), B32SZZZ (right pulmonary artery) and B32TZZZ (left pulmonary artery).

The same procedure with a different approach is coded B3200ZZ (high osmolar), B3201ZZ (low osmolar) and B320YZZ (other contrast).

With a different device, use B320Z2Z (intravascular optical coherence).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.