2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Genitourinary Organs 179-189 > 2006 ICD-9-CM Diagnosis 186 Malignant neoplasm of testis View the most recent version of ICD-9-CM 186 Malignant neoplasms of the testicles 186 is a non-specific code that cannot be used to specify a diagnosis Use additional code to identify any functional activity