B23 Magnetic Resonance Imaging (MRI) - Heart ICD-10-PCS
The B23 code range contains 10 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the heart. 9 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Magnetic Resonance Imaging (MRI): Computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field.
Codes in the B23 Range 10 codes · 9 billable
- B23 Imaging, Heart, Magnetic Resonance Imaging (MRI)Non-billable header
- B231Y0Z Magnetic Resonance Imaging (MRI) of Multiple Coronary Arteries using Other Contrast, Unenhanced and Enhanced
- B231YZZ Magnetic Resonance Imaging (MRI) of Multiple Coronary Arteries using Other Contrast
- B231ZZZ Magnetic Resonance Imaging (MRI) of Multiple Coronary Arteries
- B233Y0Z Magnetic Resonance Imaging (MRI) of Multiple Coronary Artery Bypass Grafts using Other Contrast, Unenhanced and Enhanced
- B233YZZ Magnetic Resonance Imaging (MRI) of Multiple Coronary Artery Bypass Grafts using Other Contrast
- B233ZZZ Magnetic Resonance Imaging (MRI) of Multiple Coronary Artery Bypass Grafts
- B236Y0Z Magnetic Resonance Imaging (MRI) of Right and Left Heart using Other Contrast, Unenhanced and Enhanced
- B236YZZ Magnetic Resonance Imaging (MRI) of Right and Left Heart using Other Contrast
- B236ZZZ Magnetic Resonance Imaging (MRI) of Right and Left Heart
About the B23 Code Range
These procedures use a magnetic field and radio signals to create images of multiple coronary arteries, multiple coronary artery bypass grafts, or the right and left heart.
The fourth character identifies which of those body parts is imaged. The fifth records Other Contrast or None. The sixth specifies Unenhanced and Enhanced imaging or no qualifier. The seventh has no qualifier.
Questions About This Page
How many billable codes are in the B23 range?
Of the 10 codes in this range, 9 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. Table header codes group them but cannot be reported on claims.
What does the B23 range classify?
The range classifies Magnetic Resonance Imaging (MRI) procedures, computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field, performed on the heart. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
