ICD-10 Code D33.7 – Benign neoplasm of other specified parts of central nervous system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D33.7 – Benign neoplasm of other specified parts of central nervous system
What it is
D33.7 identifies a noncancerous tumor in a specified part of the central nervous system that is not otherwise classified elsewhere. Use it when documentation names a benign neoplasm in another listed CNS site.
Clinical signs
Clinical features vary; refer to documentation. Findings may include mass effect, focal neurologic deficits, seizures, or symptoms related to the tumor’s location and size.
When to use this code
Use D33.7 when the provider documents a benign neoplasm in an “other specified” central nervous system site and the record does not support a more specific code. It is appropriate for confirmed benign tumors of CNS structures not captured by a site-specific category. Check documentation if the exact anatomic location is unclear.
Do not use for
Do not use this code for malignant, uncertain, or unspecified neoplasms, or for benign tumors of CNS sites with their own specific code. If the lesion is not documented as benign, check documentation.
Coding tip
Verify the exact CNS location in the pathology, imaging, or provider note before assigning D33.7.