Malignant neoplasm of maxillary sinus
For the 100% active-disease rating, the most important evidence is a confirmed laboratory finding — a positive culture or other specific diagnostic test — showing the infection is active or has relapsed. Treatment records, hospitalization records, and physician notes documenting signs and symptoms of active disease all support this level.
Once the active phase resolves, evidence shifts to whatever the infection left behind. Medical records documenting residual conditions — for example, imaging showing lung lesions, rheumatology records showing joint damage, or neurology records showing meningitis — would support ratings under those separate body systems. Statements from you or people who know you describing how lingering symptoms affect your work and daily activities can help show the severity of any residual disability. If your provider has tracked your recovery over time, those follow-up records are also relevant.
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.