2006 ICD-9-CM Volume 1 Diagnosis Codes > Infectious And Parasitic Diseases 001-139 > Helminthiases 120-129 > 120 Schistosomiasis (bilharziasis) 121 Other trematode infections 122 Echinococcosis 123 Other cestode infection 124 Trichinosis 125 Filarial infection and dracontiasis 126 Ancylostomiasis and necatoriasis 127 Other intestinal helminthiases 128 Other and unspecified helminthiases 129 Intestinal parasitism unspecified