B42Imaging, Lower Arteries, Computerized Tomography (CT Scan)

Imaging›Lower Arteries›Computerized Tomography (CT Scan)
  • Non-Billable Header
ICD-10-PCS B42
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

B42 is a non-billable ICD-10-PCS code that heads the group for Imaging, Lower Arteries, Computerized Tomography (CT Scan), so it cannot be submitted on a claim; a more specific seven-character code is required. The root operation Computerized Tomography (CT Scan) involves computer reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation.

Code Identity

ICD-10-PCS Code
B42
Billable Status
No — Non-Billable Header
Code Describes
Imaging, Lower Arteries, Computerized Tomography (CT Scan)
Short Description
Imaging, Lower Arteries, Computerized Tomography (CT Scan)

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1SectionBImaging
2Body System4Lower Arteries
3Operation2Computerized Tomography (CT Scan)

Similar Procedure Codes

Questions About B42

Is B42 a billable code?

No. B42 is an incomplete heading for Imaging, Lower Arteries, Computerized Tomography (CT Scan) and cannot be submitted on a claim. A complete seven-character code is required, such as B4200ZZ, B4201ZZ, and B420YZZ.