Malignant neoplasm of occipital lobe

This code signifies the presence of a primary cancerous tumor originating in the occipital lobe of the brain. This malignant growth can affect vision, visual processing, and other functions controlled by this posterior region of the cerebrum.

Assign this code when documentation clearly indicates a primary malignant neoplasm located specifically within the occipital lobe. This diagnosis is typically supported by imaging studies (e.g., MRI, CT scan) and often confirmed by biopsy or surgical pathology reports.

• Differentiate from secondary (metastatic) brain tumors, which are coded differently.
• Ensure the documentation specifies "occipital lobe" and not a more general brain region.
• Sequence this code as the primary diagnosis when it is the reason for the encounter.