Intracranial Sinuses
- B5020 - High Osmolar
- B5020Z
- B5020ZZ - Plain Radiography Intracranial Sinuses to None with None, High Osmolar Approach
- B5020Z
- B5021 - Low Osmolar
- B5021Z
- B5021ZZ - Plain Radiography Intracranial Sinuses to None with None, Low Osmolar Approach
- B5021Z
- B502Y - Other Contrast
- B502YZ
- B502YZZ - Plain Radiography Intracranial Sinuses to None with None, Other Contrast Approach
- B502YZ