B23Imaging, Heart, Magnetic Resonance Imaging (MRI)

  • Non-Billable Header
ICD-10-PCS B23
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

B23 is a non-billable ICD-10-PCS code that heads the group for Imaging, Heart, Magnetic Resonance Imaging (MRI), so it cannot be submitted on a claim; a more specific seven-character code is required. The root operation Magnetic Resonance Imaging (MRI) involves computer reformatted digital display of multiplanar images developed from the capture of radiofrequency signals emitted by nuclei in a body site excited within a magnetic field.

Code Identity

ICD-10-PCS Code
B23
Billable Status
No — Non-Billable Header
Code Describes
Imaging, Heart, Magnetic Resonance Imaging (MRI)
Short Description
Imaging, Heart, Magnetic Resonance Imaging (MRI)
Same as the full description in the CMS dataset.

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 System2Heart
3Operation3Magnetic Resonance Imaging (MRI)

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Leads to this code's table
Imaging, diagnostic
Leads to this code's table

To code imaging of the diagnostic, open the FY 2027 ICD-10-PCS Alphabetic Index at Imaging, then the subterm diagnostic. The index leads to table B23, where the approach, device and qualifier values shown in the breakdown above complete the seven-character code B23.

Browse the full ICD-10-PCS Alphabetic Index →

Similar Procedure Codes

Questions About B23

Is B23 a billable code?

No. This is an incomplete heading for Imaging, Heart, Magnetic Resonance Imaging (MRI) and cannot be submitted on a claim. A complete seven-character code is required, such as B231Y0Z, B231YZZ, and B231ZZZ.