ICD-10-PCS 2027 procedure code
B3281ZZComputerized Tomography (CT Scan) of Bilateral Internal Carotid Arteries using Low Osmolar Contrast
Short description: CT Scan of Bi Int Carotid using L Osm Contrast
Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About B3281ZZ
B3281ZZ is the ICD-10-PCS code for a computerized tomography (CT scan) procedure on the bilateral internal carotid arteries using a low osmolar 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 B3201ZZ (thoracic aorta), B3251ZZ (bilateral common carotid arteries), B32G1ZZ (bilateral vertebral arteries), B32R1ZZ (intracranial arteries), B32S1ZZ (right pulmonary artery) and B32T1ZZ (left pulmonary artery).
The same procedure with a different approach is coded B3280ZZ (high osmolar), B328YZZ (other contrast) and B328ZZZ (none).
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.
What each character means
- 1. Section
- BImaging
- 2. Body System
- 3Upper Arteries
- 3. Type
- 2Computerized Tomography (CT Scan)
Computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation
- 4. Body Part
- 8Internal Carotid Arteries, Bilateral
- 5. Contrast
- 1Low Osmolar
- 6. Qualifier
- ZNone
- 7. Qualifier
- ZNone
Other versions of this procedure
ICD-9-CM equivalent
Converter →- 88.38Other computerized axial tomographyapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about B3281ZZ
Is B3281ZZ a valid ICD-10-PCS code for 2027?
- Yes. B3281ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for B3281ZZ?
- The CMS GEMs map B3281ZZ to ICD-9-CM 88.38 (Other computerized axial tomography).