2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Neoplasms Of Uncertain Behavior 235-238 > 2006 ICD-9-CM Diagnosis 238 Neoplasm of uncertain behavior of other and unspecified sites and tissues View the most recent version of ICD-9-CM 238 238 is a non-specific code that cannot be used to specify a diagnosis