B03 Magnetic Resonance Imaging (MRI) - Central Nervous System ICD-10-PCS
The B03 code range contains 13 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the central nervous system. 12 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
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 B03 Range 13 codes · 12 billable
- B03 Imaging, Central Nervous System, Magnetic Resonance Imaging (MRI)Non-billable header
- B030Y0Z Magnetic Resonance Imaging (MRI) of Brain using Other Contrast, Unenhanced and Enhanced
- B030YZZ Magnetic Resonance Imaging (MRI) of Brain using Other Contrast
- B030ZZZ Magnetic Resonance Imaging (MRI) of Brain
- B039Y0Z Magnetic Resonance Imaging (MRI) of Sella Turcica/Pituitary Gland using Other Contrast, Unenhanced and Enhanced
- B039YZZ Magnetic Resonance Imaging (MRI) of Sella Turcica/Pituitary Gland using Other Contrast
- B039ZZZ Magnetic Resonance Imaging (MRI) of Sella Turcica/Pituitary Gland
- B03BY0Z Magnetic Resonance Imaging (MRI) of Spinal Cord using Other Contrast, Unenhanced and Enhanced
- B03BYZZ Magnetic Resonance Imaging (MRI) of Spinal Cord using Other Contrast
- B03BZZZ Magnetic Resonance Imaging (MRI) of Spinal Cord
- B03CY0Z Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast, Unenhanced and Enhanced
- B03CYZZ Magnetic Resonance Imaging (MRI) of Acoustic Nerves using Other Contrast
- B03CZZZ Magnetic Resonance Imaging (MRI) of Acoustic Nerves
About the B03 Code Range
The ICD-10-PCS root operation Magnetic Resonance Imaging (MRI), identified by code B03 in the Imaging section, refers to using MRI technology to produce detailed images of specific body parts, mainly within the central nervous system. This non-invasive procedure captures high-resolution images for diagnostic evaluation without the use of ionizing radiation.
This root operation includes MRI of various central nervous system structures such as the Brain, Sella Turcica/Pituitary Gland, Spinal Cord, and Acoustic Nerves. Codes like B030ZZZ represent an MRI of the brain without contrast, while B030Y0Z includes MRI of the brain with other types of contrast, both unenhanced and enhanced. Similarly, MRI codes cover contrasted and non-contrasted imaging of the pituitary gland (e.g., B039YZZ), spinal cord (e.g., B03BYZZ), and acoustic nerves (e.g., B03CYZZ). Accurate use of these ICD-10-PCS MRI codes ensures precise documentation of imaging procedures, supporting diagnostic clarity within neurological assessments.
Questions About This Page
How many billable codes are in the B03 range?
Of the 13 codes in this range, 12 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the B03 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 central nervous system. 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 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
