2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Infectious And Parasitic Diseases 001-139 > Helminthiases 120-129 > ICD-9-CM Diagnosis 129 Intestinal parasitism unspecified Infections of the INTESTINES with PARASITES, commonly involving PROTOZOA or PARASITIC WORMS. Infections with roundworms (NEMATODE INFECTIONS) and TAPEWORMS (CESTODE INFECTIONS) are also known as HELMINTHIASIS. 129 is a specific code that can be used to specify a diagnosis 129 contains 6 index entries