BB3 Magnetic Resonance Imaging (MRI) - Respiratory System ICD-10-PCS
The BB3 code range contains 5 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the respiratory system. 4 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 BB3 Range 5 codes · 4 billable
- BB3 Imaging, Respiratory System, Magnetic Resonance Imaging (MRI)Non-billable header
- BB34Z3Z Magnetic Resonance Imaging (MRI) of Bilateral Lungs using Hyperpolarized Xenon 129 (Xe-129)
- BB3GY0Z Magnetic Resonance Imaging (MRI) of Lung Apices using Other Contrast, Unenhanced and Enhanced
- BB3GYZZ Magnetic Resonance Imaging (MRI) of Lung Apices using Other Contrast
- BB3GZZZ Magnetic Resonance Imaging (MRI) of Lung Apices
About the BB3 Code Range
The ICD-10-PCS root operation BB3 - Magnetic Resonance Imaging (MRI) involves obtaining detailed images of body structures using magnetic resonance technology. Classified under Imaging, this operation focuses on capturing non-invasive diagnostic pictures for clinical evaluation.
Within the respiratory system, Magnetic Resonance Imaging (MRI) is used to visualize lung anatomy with or without contrast agents. Examples include imaging the bilateral lungs using specialized inhaled agents like Hyperpolarized Xenon 129 (Xe-129) (code BB34Z3Z), the lung apices with or without Other Contrast (codes BB3GY0Z and BB3GYZZ), and general MRI of the lung apices without contrast (code BB3GZZZ). These codes allow precise documentation of the specific lung regions and the imaging techniques employed, critical for accurate procedural coding and patient care.
Questions About This Page
How many billable codes are in the BB3 range?
Of the 5 codes in this range, 4 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 BB3 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 respiratory 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.
