2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Genitourinary Organs 179-189 > Malignant Neoplasm Of Testis 186.* > 2006 ICD-9-CM Diagnosis 186.0 Malignant neoplasm of undescended testis View the most recent version of ICD-9-CM 186.0 186.0 is a specific code that can be used to specify a diagnosis 186.0 contains 3 index entries View the ICD-9-CM Volume 1 186.* hierarchy Alternate Terminology Ectopic testis Retained testis  Index entries containing 186.0: Embryoma (M9080/1) - see also Neoplasm, by site, uncertain behavior malignant (M9080/3) - see also Neoplasm, by site, malignant testis (M9070/3) 186.9 undescended 186.0 with acute bronchitis 491.22 exacerbation (acute) 491.21 testis (M9070/3) 186.9 undescended 186.0 Teratoma (solid) (M9080/1) - see also Neoplasm, by site, uncertain behavior testis (M9080/3) 186.9 undescended 186.0