Diagnostic Code 8108: Narcolepsy Rating Criteria
- CFR section
- 38 CFR § 4.124a
- Rating range
- 10% to 80%
- Rating levels
- 5
- Body system
- Neurological conditions
The VA rates Narcolepsy under diagnostic code 8108 in 38 CFR § 4.124a. The table below is the full set of rating criteria, from the schedule itself, with the evidence factors raters look for at each level.
DC 8108 rating criteria
| Rating | Criteria |
|---|---|
| 10% | A confirmed diagnosis of narcolepsy with a history of narcoleptic episodes What raters look forconfirmed diagnosis; history of episodes |
| 20% | At least 2 narcoleptic episodes in the last 6 months What raters look forat least 2 episodes in the last 6 months |
| 40% | Averaging at least 5 to 8 narcoleptic episodes weekly What raters look foraveraging at least 5 to 8 episodes weekly |
| 60% | Averaging 9-10 narcoleptic episodes per week What raters look foraveraging 9-10 episodes per week |
| 80% | Averaging more than 10 narcoleptic episodes weekly What raters look formore than 10 episodes weekly |
Condition guide
The rating criteria are only part of the picture for Narcolepsy. The Narcolepsy condition page covers service connection, common evidence problems, secondary conditions, and Board outcome patterns in depth.
What happens to Narcolepsy appeals at the Board
Claim Raven's analysis of 454 decided Board of Veterans' Appeals rulings on Narcolepsy, 2021 to 2026. The Narcolepsy condition page has the full breakdown, including which evidence types are associated with better outcomes.
Method: each ruling's outcome is read from the order in the Board's published decision and rolled up as granted (including partial grants), denied, or remanded, leaving out dismissals and withdrawals. The data codes the condition the Board ruled on, not the diagnostic code, so these numbers describe Narcolepsy appeals generally rather than DC 8108 specifically. Board outcomes describe appealed claims, not initial decisions.
Frequently asked questions
What is VA diagnostic code 8108?
Diagnostic code 8108 is the VA rating schedule entry for Narcolepsy, found in 38 CFR § 4.124a. The VA assigns this code when it rates the condition and applies the criteria listed on this page.
What ratings are possible under DC 8108?
DC 8108 provides ratings of 10%, 20%, 40%, 60%, 80%. The percentage depends on which criteria your medical evidence documents, not on the diagnosis alone.
What does the highest rating under DC 8108 require?
The 80% rating for Narcolepsy requires: Averaging more than 10 narcoleptic episodes weekly.
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