2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Veins And Lymphatics, And Other Diseases Of Circulatory System 451-459 > Hemorrhoids 455.* > 2006 ICD-9-CM Diagnosis 455.7 Unspecified thrombosed hemorrhoids View the most recent version of ICD-9-CM 455.7 455.7 is a specific code that can be used to specify a diagnosis 455.7 contains 1 index entry View the ICD-9-CM Volume 1 455.* hierarchy Alternate Terminology Thrombosed hemorrhoids, unspecified whether internal or external  Index entries containing 455.7: Hemorrhoids (anus) (rectum) (without complication) 455.6 thrombosed NEC 455.7 external 455.4 internal 455.1