BY3Imaging, Fetus and Obstetrical, Magnetic Resonance Imaging (MRI)

Imaging›Fetus and Obstetrical›Magnetic Resonance Imaging (MRI)
  • Non-Billable Header
ICD-10-PCS BY3
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

BY3 is a non-billable ICD-10-PCS code that heads the group for Imaging, Fetus and Obstetrical, 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
BY3
Billable Status
No — Non-Billable Header
Code Describes
Imaging, Fetus and Obstetrical, Magnetic Resonance Imaging (MRI)
Short Description
Imaging, Fetus & Obstetrical, MRI

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 SystemYFetus and Obstetrical
3Operation3Magnetic Resonance Imaging (MRI)

Similar Procedure Codes

Questions About BY3

Is BY3 a billable code?

No. BY3 is an incomplete heading for Imaging, Fetus and Obstetrical, Magnetic Resonance Imaging (MRI) and cannot be submitted on a claim. A complete seven-character code is required, such as BY30Y0Z, BY30YZZ, and BY30ZZZ.