2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Other And Unspecified Sites 190-199 > 2006 ICD-9-CM Diagnosis 191 Malignant neoplasm of brain View the most recent version of ICD-9-CM 191 191 is a non-specific code that cannot be used to specify a diagnosis 191 Excludes cranial nerves (192.0) retrobulbar area (190.1)