BW3 Magnetic Resonance Imaging (MRI) - Anatomical Regions ICD-10-PCS
The BW3 code range contains 21 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the anatomical regions. 20 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 BW3 Range 21 codes · 20 billable
- BW3 Imaging, Anatomical Regions, Magnetic Resonance Imaging (MRI)Non-billable header
- BW30Y0Z Magnetic Resonance Imaging (MRI) of Abdomen using Other Contrast, Unenhanced and Enhanced
- BW30YZZ Magnetic Resonance Imaging (MRI) of Abdomen using Other Contrast
- BW30ZZZ Magnetic Resonance Imaging (MRI) of Abdomen
- BW33Y0Z Magnetic Resonance Imaging (MRI) of Chest using Other Contrast, Unenhanced and Enhanced
- BW33YZZ Magnetic Resonance Imaging (MRI) of Chest using Other Contrast
- BW38Y0Z Magnetic Resonance Imaging (MRI) of Head using Other Contrast, Unenhanced and Enhanced
- BW38YZZ Magnetic Resonance Imaging (MRI) of Head using Other Contrast
- BW38ZZZ Magnetic Resonance Imaging (MRI) of Head
- BW3FY0Z Magnetic Resonance Imaging (MRI) of Neck using Other Contrast, Unenhanced and Enhanced
- BW3FYZZ Magnetic Resonance Imaging (MRI) of Neck using Other Contrast
- BW3FZZZ Magnetic Resonance Imaging (MRI) of Neck
- BW3GY0Z Magnetic Resonance Imaging (MRI) of Pelvic Region using Other Contrast, Unenhanced and Enhanced
- BW3GYZZ Magnetic Resonance Imaging (MRI) of Pelvic Region using Other Contrast
- BW3GZZZ Magnetic Resonance Imaging (MRI) of Pelvic Region
- BW3HY0Z Magnetic Resonance Imaging (MRI) of Retroperitoneum using Other Contrast, Unenhanced and Enhanced
- BW3HYZZ Magnetic Resonance Imaging (MRI) of Retroperitoneum using Other Contrast
- BW3HZZZ Magnetic Resonance Imaging (MRI) of Retroperitoneum
- BW3PY0Z Magnetic Resonance Imaging (MRI) of Brachial Plexus using Other Contrast, Unenhanced and Enhanced
- BW3PYZZ Magnetic Resonance Imaging (MRI) of Brachial Plexus using Other Contrast
- BW3PZZZ Magnetic Resonance Imaging (MRI) of Brachial Plexus
About the BW3 Code Range
The ICD-10-PCS root operation Magnetic Resonance Imaging (MRI) (BW3) refers to the use of MRI technology to produce detailed images of various anatomical regions. This diagnostic imaging technique employs magnetic fields and radio waves to visualize internal body structures without invasive procedures.
Within the Imaging classification, the Magnetic Resonance Imaging operation encompasses multiple specific codes depending on the body part examined and whether contrast agents are used. Examples include MRI of the Abdomen (codes BW30ZZZ, BW30YZZ), which can be performed with or without contrast enhancement. Other targeted regions are the Chest (BW33YZZ), Head (BW38ZZZ), Neck (BW3FZZZ), Pelvic Region (BW3GZZZ), Retroperitoneum (BW3HZZZ), and Brachial Plexus (BW3PZZZ). Codes also specify if contrast is used, such as "Other Contrast, Unenhanced and Enhanced" variants (e.g., BW38Y0Z for head MRI). Accurate assignment of these codes is essential for precise documentation of MRI procedures targeting specific anatomical regions.
Questions About This Page
How many billable codes are in the BW3 range?
Of the 21 codes in this range, 20 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 BW3 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 anatomical regions. 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.
