Three things about this code, and all three matter
Under §4.97, DC 6502, deviated nasal septum is:
- "Traumatic only." The code says so in its own heading. A congenital or developmental deviation is not evaluated here.
- A single 10%. There is no higher level and no lower compensable one. This code either fits or it does not.
- Measured. The 10% requires 50-percent obstruction of the nasal passage on both sides, or complete obstruction on one side.
Why "traumatic only" is the thing to notice
It makes the mechanism part of the criteria rather than only part of the service-connection question. If the record does not show a traumatic origin, this code is not the one — whatever the obstruction measures.
So the evidence has two jobs: establish the trauma, and establish the obstruction. Service records, treatment records from the time, and a clear account of what happened do the first. Examination findings and imaging do the second.
If the obstruction is there but the trauma is not
A septum deviation that is not traumatic may still matter — through another code, or as part of the picture in a rhinitis or sinusitis claim. What it does not do is reach DC 6502.
Overlapping nasal conditions need a §4.14 analysis before separate evaluations are assumed. The ENT DBQ collects findings across this group.
Rules and forms change, and exceptions apply. Follow the instructions on your own decision letter and the linked governing sources. This site does not track your deadlines or file anything for you.
Reviewed October 6, 2026