A gold color metal and enamel device 1 1/8 inches (2.86cm) in height overall consisting of a red enamel cross with a small semi-circle at the end of each arm surmounted overall by four gold rays emanating saltirewise from behind a white enamel five-pointed star, all with a maroon enamel oval scroll passing under the horizontal arms and points of the rays, bearing the inscription between the rays, at top, "DEDICATION" and in base, "DUTY SERVICE" all in gold letters.
Maroon and white are the colors of the Army Medical Department. The red cross, symbol of military aid and assistance, represents the Center and its mission, and the semi-circles are used to allude to the Spanish-type architecture of the Fort. The rays, forming an "X," symbolize the first routine military use of the x-ray by Doctor Brooke for whom the Center is named. The star, symbol of leadership, refers to the State of Texas, General Sam Houston and the Fort named in his honor, and Brigadier General Roger Brooke.
The distinctive unit insignia was originally approved for the Brooke General Hospital on 5 Dec 1969. The insignia was redesignated for the Brooke Army Medical Center on 15 Aug 1973.