ICD-10-PCS 2027 procedure code
B320Z2ZComputerized Tomography (CT Scan) of Thoracic Aorta using Intravascular Optical Coherence
Short description: CT Scan of Thoracic Aorta using Intravasc Optic Cohere
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 B320Z2Z
B320Z2Z is the ICD-10-PCS code for a computerized tomography (CT scan) procedure on the thoracic aorta using a none approach with intravascular optical coherence (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 intravascular imaging of non-coronary vessel(s) by optical coherence tomography [OCT], the ICD-9-CM procedure title it maps to (38.25).
For a different body part, codes include B325Z2Z (bilateral common carotid arteries), B328Z2Z (bilateral internal carotid arteries), B32GZ2Z (bilateral vertebral arteries), B32RZ2Z (intracranial arteries), B32SZ2Z (right pulmonary artery) and B32TZ2Z (left pulmonary artery).
With a different device, use B320ZZZ (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
- 0Thoracic Aorta
- 5. Contrast
- ZNone
- 6. Qualifier
- 2Intravascular Optical Coherence
- 7. Qualifier
- ZNone
Other versions of this procedure
ICD-9-CM equivalent
Converter →- 38.25Intravascular imaging of non-coronary vessel(s) by optical coherence tomography [OCT]approximate
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 B320Z2Z
Is B320Z2Z a valid ICD-10-PCS code for 2027?
- Yes. B320Z2Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for B320Z2Z?
- The CMS GEMs map B320Z2Z to ICD-9-CM 38.25 (Intravascular imaging of non-coronary vessel(s) by optical coherence tomography [OCT]).