- B50R Pulmonary Vein, Left
- B50R0 High Osmolar
- B50R0Z None
- B50R0ZZ Plain Radiography of Left Pulmonary Vein using High Osmolar Contrast
- B50R0Z None
- B50R1 Low Osmolar
- B50R1Z None
- B50R1ZZ Plain Radiography of Left Pulmonary Vein using Low Osmolar Contrast
- B50R1Z None
- B50RY Other Contrast
- B50RYZ None
- B50RYZZ Plain Radiography of Left Pulmonary Vein using Other Contrast
- B50RYZ None
- B50R0 High Osmolar