B33 Magnetic Resonance Imaging (MRI) - Upper Arteries ICD-10-PCS
The B33 code range contains 31 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the upper arteries. 30 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 B33 Range 31 codes · 30 billable
- B33 Imaging, Upper Arteries, Magnetic Resonance Imaging (MRI)Non-billable header
- B330Y0Z Magnetic Resonance Imaging (MRI) of Thoracic Aorta using Other Contrast, Unenhanced and Enhanced
- B330YZZ Magnetic Resonance Imaging (MRI) of Thoracic Aorta using Other Contrast
- B330ZZZ Magnetic Resonance Imaging (MRI) of Thoracic Aorta
- B335Y0Z Magnetic Resonance Imaging (MRI) of Bilateral Common Carotid Arteries using Other Contrast, Unenhanced and Enhanced
- B335YZZ Magnetic Resonance Imaging (MRI) of Bilateral Common Carotid Arteries using Other Contrast
- B335ZZZ Magnetic Resonance Imaging (MRI) of Bilateral Common Carotid Arteries
- B338Y0Z Magnetic Resonance Imaging (MRI) of Bilateral Internal Carotid Arteries using Other Contrast, Unenhanced and Enhanced
- B338YZZ Magnetic Resonance Imaging (MRI) of Bilateral Internal Carotid Arteries using Other Contrast
- B338ZZZ Magnetic Resonance Imaging (MRI) of Bilateral Internal Carotid Arteries
- B33GY0Z Magnetic Resonance Imaging (MRI) of Bilateral Vertebral Arteries using Other Contrast, Unenhanced and Enhanced
- B33GYZZ Magnetic Resonance Imaging (MRI) of Bilateral Vertebral Arteries using Other Contrast
- B33GZZZ Magnetic Resonance Imaging (MRI) of Bilateral Vertebral Arteries
- B33HY0Z Magnetic Resonance Imaging (MRI) of Right Upper Extremity Arteries using Other Contrast, Unenhanced and Enhanced
- B33HYZZ Magnetic Resonance Imaging (MRI) of Right Upper Extremity Arteries using Other Contrast
- B33HZZZ Magnetic Resonance Imaging (MRI) of Right Upper Extremity Arteries
- B33JY0Z Magnetic Resonance Imaging (MRI) of Left Upper Extremity Arteries using Other Contrast, Unenhanced and Enhanced
- B33JYZZ Magnetic Resonance Imaging (MRI) of Left Upper Extremity Arteries using Other Contrast
- B33JZZZ Magnetic Resonance Imaging (MRI) of Left Upper Extremity Arteries
- B33KY0Z Magnetic Resonance Imaging (MRI) of Bilateral Upper Extremity Arteries using Other Contrast, Unenhanced and Enhanced
- B33KYZZ Magnetic Resonance Imaging (MRI) of Bilateral Upper Extremity Arteries using Other Contrast
- B33KZZZ Magnetic Resonance Imaging (MRI) of Bilateral Upper Extremity Arteries
- B33MY0Z Magnetic Resonance Imaging (MRI) of Spinal Arteries using Other Contrast, Unenhanced and Enhanced
- B33MYZZ Magnetic Resonance Imaging (MRI) of Spinal Arteries using Other Contrast
- B33MZZZ Magnetic Resonance Imaging (MRI) of Spinal Arteries
- B33QY0Z Magnetic Resonance Imaging (MRI) of Cervico-Cerebral Arch using Other Contrast, Unenhanced and Enhanced
- B33QYZZ Magnetic Resonance Imaging (MRI) of Cervico-Cerebral Arch using Other Contrast
- B33QZZZ Magnetic Resonance Imaging (MRI) of Cervico-Cerebral Arch
- B33RY0Z Magnetic Resonance Imaging (MRI) of Intracranial Arteries using Other Contrast, Unenhanced and Enhanced
- B33RYZZ Magnetic Resonance Imaging (MRI) of Intracranial Arteries using Other Contrast
- B33RZZZ Magnetic Resonance Imaging (MRI) of Intracranial Arteries
About the B33 Code Range
The ICD-10-PCS root operation Magnetic Resonance Imaging (MRI) (code starting with B33) refers to a non-invasive imaging procedure using magnetic resonance technology to visualize arteries. This operation is classified under the Imaging section and focuses on detailed scanning of blood vessels.
This operation includes MRI of various arterial locations, such as the Thoracic Aorta (B330ZZZ), Bilateral Common Carotid Arteries (B335ZZZ), and Bilaterally Internal Carotid Arteries (B338ZZZ). The codes also specify use of contrast agents, with designations for Other Contrast and distinctions for Unenhanced and Enhanced imaging, as seen in B330Y0Z and B335Y0Z. Imaging of upper extremity arteries and spinal arteries is similarly represented (e.g., B33HYZZ for the right upper extremity arteries and B33MZZZ for spinal arteries). This robust classification supports precise documentation of magnetic resonance angiography procedures across a broad range of arterial segments.
Questions About This Page
How many billable codes are in the B33 range?
Of the 31 codes in this range, 30 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 B33 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 upper arteries. 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.
