Narcolepsy

The VA rates Narcolepsy under Diagnostic Code 8108 at 0%. The minimum 0% rating requires: Rate as for epilepsy, petit mal.. The maximum 0% rating requires: Rate as for epilepsy, petit mal..

The VA rates Narcolepsy under Diagnostic Code (DC) 8108, governed by 38 CFR 38 CFR § 4.124a. The diagnostic code establishes the specific rating tiers and severity criteria the VA examiner applies.

Veterans rated for Narcolepsy may qualify for TDIU if the condition — alone or in combination with other service-connected disabilities — prevents substantially gainful employment. A single disability rated at 60% or higher (or multiple disabilities combining to 70%, with one at 40%) can support a TDIU claim under 38 CFR § 4.16.

Service connection for Narcolepsy requires three elements: (1) a current diagnosis of the condition, (2) an in-service event, injury, or disease, and (3) a medical nexus linking the current diagnosis to that in-service occurrence. A nexus letter from a treating or independent medical examiner is the most reliable nexus evidence.

A Compensation & Pension (C&P) exam for Narcolepsy uses a Disability Benefits Questionnaire (DBQ) specific to the body system involved. The examiner documents the frequency, severity, and functional impact of your symptoms. Bring all relevant treatment records and be prepared to describe your worst-day symptoms — the examiner rates your condition based on the full clinical picture, not a single visit.