BB2 Computerized Tomography (CT Scan) - Respiratory System ICD-10-PCS
The BB2 code range contains 36 ICD-10-PCS codes for Computerized Tomography (CT Scan) procedures on the respiratory system. 35 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Computerized Tomography (CT Scan): Computer-reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation.
Codes in the BB2 Range 36 codes · 35 billable
- BB2 Imaging, Respiratory System, Computerized Tomography (CT Scan)Non-billable header
- BB2400Z Computerized Tomography (CT Scan) of Bilateral Lungs using High Osmolar Contrast, Unenhanced and Enhanced
- BB240ZZ Computerized Tomography (CT Scan) of Bilateral Lungs using High Osmolar Contrast
- BB2410Z Computerized Tomography (CT Scan) of Bilateral Lungs using Low Osmolar Contrast, Unenhanced and Enhanced
- BB241ZZ Computerized Tomography (CT Scan) of Bilateral Lungs using Low Osmolar Contrast
- BB24Y0Z Computerized Tomography (CT Scan) of Bilateral Lungs using Other Contrast, Unenhanced and Enhanced
- BB24YZZ Computerized Tomography (CT Scan) of Bilateral Lungs using Other Contrast
- BB24ZZZ Computerized Tomography (CT Scan) of Bilateral Lungs
- BB2700Z Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using High Osmolar Contrast, Unenhanced and Enhanced
- BB270ZZ Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using High Osmolar Contrast
- BB2710Z Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using Low Osmolar Contrast, Unenhanced and Enhanced
- BB271ZZ Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using Low Osmolar Contrast
- BB27Y0Z Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using Other Contrast, Unenhanced and Enhanced
- BB27YZZ Computerized Tomography (CT Scan) of Right Tracheobronchial Tree using Other Contrast
- BB27ZZZ Computerized Tomography (CT Scan) of Right Tracheobronchial Tree
- BB2800Z Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using High Osmolar Contrast, Unenhanced and Enhanced
- BB280ZZ Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using High Osmolar Contrast
- BB2810Z Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using Low Osmolar Contrast, Unenhanced and Enhanced
- BB281ZZ Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using Low Osmolar Contrast
- BB28Y0Z Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using Other Contrast, Unenhanced and Enhanced
- BB28YZZ Computerized Tomography (CT Scan) of Left Tracheobronchial Tree using Other Contrast
- BB28ZZZ Computerized Tomography (CT Scan) of Left Tracheobronchial Tree
- BB2900Z Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using High Osmolar Contrast, Unenhanced and Enhanced
- BB290ZZ Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using High Osmolar Contrast
- BB2910Z Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using Low Osmolar Contrast, Unenhanced and Enhanced
- BB291ZZ Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using Low Osmolar Contrast
- BB29Y0Z Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using Other Contrast, Unenhanced and Enhanced
- BB29YZZ Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees using Other Contrast
- BB29ZZZ Computerized Tomography (CT Scan) of Bilateral Tracheobronchial Trees
- BB2F00Z Computerized Tomography (CT Scan) of Trachea/Airways using High Osmolar Contrast, Unenhanced and Enhanced
- BB2F0ZZ Computerized Tomography (CT Scan) of Trachea/Airways using High Osmolar Contrast
- BB2F10Z Computerized Tomography (CT Scan) of Trachea/Airways using Low Osmolar Contrast, Unenhanced and Enhanced
- BB2F1ZZ Computerized Tomography (CT Scan) of Trachea/Airways using Low Osmolar Contrast
- BB2FY0Z Computerized Tomography (CT Scan) of Trachea/Airways using Other Contrast, Unenhanced and Enhanced
- BB2FYZZ Computerized Tomography (CT Scan) of Trachea/Airways using Other Contrast
- BB2FZZZ Computerized Tomography (CT Scan) of Trachea/Airways
About the BB2 Code Range
These CT scans use multiple exposures to external radiation to create computer-displayed views of the lungs and airways from different planes.
The fourth character identifies both lungs, the right, left, or both tracheobronchial trees, or the trachea and airways. The fifth identifies high-osmolar, low-osmolar, or other contrast, or no contrast. The sixth distinguishes scans with both unenhanced and enhanced images from those with no qualifier. The seventh character has no qualifier.
Questions About This Page
How many billable codes are in the BB2 range?
Of the 36 codes in this range, 35 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 BB2 range classify?
The range classifies Computerized Tomography (CT Scan) procedures, computer-reformatted digital display of multiplanar images developed from the capture of multiple exposures of external ionizing radiation, 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 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
