2007 ICD-9-CM Procedure 87.33 Mediastinal pneumogram 87.33 is a specific code that can be used to specify a procedure 87.33 contains 3 index entries View the full Volume 3 87.* hierarchy Index entries containing 87.33: Pneumogram, pneumography mediastinal 87.33 Pneumomediastinography 87.33 Radiography (diagnostic) NEC 88.39 contrast (air) (gas) (radio-opaque substance) NEC mediastinum 87.33