Supplemental HLR

You should pursue a Supplemental Claim for your denied migraines and insomnia by submitting new and relevant evidence, specifically a nexus opinion linking them to your service-connected tinnitus, while awaiting the rating decision on your deferred vertigo claim. Under 38 CFR 3.303, service connection requires a current diagnosis, an in-service event, and a medical nexus; your service-connected tinnitus (Diagnostic Code 6260) can serve as the in-service event for secondary conditions. For migraines, you need a formal diagnosis and frequency/severity documentation to be rated under Diagnostic Code 8100, while insomnia will typically be evaluated as part of a mental health disorder under 38 CFR 4.130 (e.g., DC 9440 for Chronic Adjustment Disorder) or as a symptom impacting migraines. The *Buchanan v. Nicholson* precedent supports that a veteran’s lay evidence on symptom linkage must be considered. Your actionable next steps are: 1) Obtain a private medical nexus letter stating it is "at least as likely as not" that your chronic migraines and insomnia are caused or aggravated by your service-connected tinnitus; 2) Submit a VA Form 20-0995 (Decision Review Request: Supplemental Claim) with this new evidence; and 3) Consider filing for an increased rating if your vertigo is granted but underrated. **Disclaimer: This is educational information for claims strategy based on VA policy and case law, not legal or medical advice; for personal guidance, consult an accredited VA attorney or claims agent.**