An inner ear balance problem that can cause dizziness or a spinning sensation (vertigo) and make walking feel unsteady.
Because objective findings are required before a compensable rating can be assigned, medical records documenting those findings are central to your claim. Findings from a vestibular function evaluation, such as caloric testing, posturography, electronystagmography, or similar balance tests, can establish the diagnosis of vestibular disequilibrium.
For a 30% rating, evidence should show both dizziness and occasional staggering. Clinical notes describing observed balance disturbances or unsteady gait during examinations support this level. For a 10% rating, records showing episodes of dizziness without staggering are relevant. Statements from you or people who have witnessed your episodes can help describe how often dizziness occurs and whether staggering happens. Treatment records, referrals to specialists, and notes from your treating providers about the frequency and character of your symptoms also help document the criteria at each level. If hearing loss or ear suppuration is also present, separate documentation of those conditions allows them to be rated on their own.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.