Although U.S. Army aviators are carefully screened at entry, disease develops in the aviator population with time. Improving the ability to predict and prevent such diseases necessitates proper analysis of their incidence. This information can provide the basis for future improvements in screening and prevention. A descriptive analysis of diseases for the U.S. Army aviation population is presented. The frequency of international Classification of Diseases (ICD) codes leading to disqualification from flying status is summarized and discussed. Suggestions for future screening criteria and for intervention practices are proposed.