Malignant neoplasm of cerebrum, except lobes and ventricles

This code signifies a primary cancerous tumor originating within the cerebrum, specifically excluding those located in the cerebral lobes (frontal, parietal, temporal, occipital) and the cerebral ventricles. These neoplasms are characterized by uncontrolled cell growth and have the potential to invade surrounding brain tissue and metastasize.

Use this code when documentation clearly identifies a primary malignant neoplasm located in the cerebrum but not specified as being within a particular lobe or ventricle. This is appropriate for diagnoses such as "malignant brain tumor, NOS" or "cerebral glioma, unspecified location within cerebrum" when further anatomical specificity is absent.

• Ensure the documentation specifies "malignant" and "primary" to differentiate from benign tumors or metastatic disease.
• Avoid using this code if the tumor's location within the cerebrum is more precisely defined (e.g., frontal lobe, temporal lobe); instead, use the more specific C71 subcategory.
• Always review pathology reports and imaging studies for definitive tumor location and malignancy status.