- B50S Pulmonary Veins, Bilateral
- B50S0 High Osmolar
- B50S0Z None
- B50S0ZZ Plain Radiography of Bilateral Pulmonary Veins using High Osmolar Contrast
- B50S0Z None
- B50S1 Low Osmolar
- B50S1Z None
- B50S1ZZ Plain Radiography of Bilateral Pulmonary Veins using Low Osmolar Contrast
- B50S1Z None
- B50SY Other Contrast
- B50SYZ None
- B50SYZZ Plain Radiography of Bilateral Pulmonary Veins using Other Contrast
- B50SYZ None
- B50S0 High Osmolar