2007 ICD-9-CM Procedure 65.21 Marsupialization of ovarian cyst 65.21 is a specific code that can be used to specify a procedure 65.21 contains 1 index entry View the full Volume 3 65.* hierarchy 65.21 excludes: that by laparoscope (65.23) Index entries containing 65.21: Marsupialization -- see also Destruction, lesion, by site cyst ovary 65.21 laparoscopic 65.23