2007 ICD-9-CM Procedure 88.64 Phlebography of the portal venous system using contrast material 88.64 is a specific code that can be used to specify a procedure 88.64 contains 4 index entries View the full Volume 3 88.* hierarchy 88.64 also known as: Splenoportogram (by splenic arteriography) Index entries containing 88.64: Phlebography (contrast) (retrograde) 88.60 hepatic 88.64 portal system 88.64 Splenogram 88.64 radioisotope 92.05 Splenoportogram (by splenic arteriography) 88.64