Neuroepitheliomatous Neoplasms

M-938 in ICD-O-3 designates neuroepitheliomatous neoplasms, a group of malignant tumors arising from neuroepithelial cells of the central or peripheral nervous system. It includes gliomas, ependymomas and related tumors that exhibit neuroepithelial differentiation and are typically assigned a behavior code of 3 for malignant.