Chiari Malformation (brain surgery) Rating Question.

Chiari Malformation is rated under the neurological conditions schedule, primarily under **38 CFR § 4.124a**, diagnostic code (DC) 8025 for "Brain, new growth of." This DC is used for non-cancerous structural abnormalities like Chiari and is rated based on the severity of your symptoms, not the diagnosis alone, per the principle established in *DeLuca v. Brown*. Your rating will depend on residual neurological impairments such as motor or sensory deficits, headaches, dizziness, or cranial nerve issues, which are evaluated under this code. Critically, if you suffer from mental health symptoms like depression or anxiety secondary to the chronic pain and stress of this condition, these must be claimed separately and rated under **38 CFR § 4.130** (DC 9300-9521). Your actionable next steps are: 1) Ensure all post-surgery residuals are thoroughly documented in your service treatment records; 2) File a claim for the Chiari Malformation itself as a chronic condition diagnosed in service, citing **38 CFR § 3.303** on chronicity; and 3) Submit separate claims for all secondary conditions (e.g., migraines under DC 8100, radiculopathy under DC 8510-8730) with supporting nexus opinions, as the VA will not infer them automatically. Since you are still serving, initiate a BDD (Benefits Delivery at Discharge) claim 180-90 days before separation to expedite your rating.

*This information is for educational purposes regarding the VA claims process and is not intended as legal or medical advice.*