Mastoiditis is rated by the U.S. Department of Veterans Affairs under DC 6200 of 38 CFR § 4.87, DC 6200 across 4 severity tiers (0% / 10% / 20% / 30%). Service connection requires (1) a current diagnosis, (2) an in-service event, injury, or exposure, and (3) a medical nexus opinion linking the two under 38 C.F.R. § 3.303.
Infection of the mastoid bone behind the ear, usually resulting from untreated or chronic middle ear infection. Can cause bone destruction, abscess formation, and in severe cases, intracranial complications.
Rating criteria reference 38 C.F.R. Part 4 (Schedule for Rating Disabilities). This entry has not yet undergone editorial review against the live regulation text — consult the authoritative source directly before relying on the criteria shown.