7 12099。 According to the information of official website in the national postal code database, the postal code consists of six digits. The first two digits of the postal code of Xianyang First People's Hospital are 7 12099 and 7 1 represent Shaanxi Province, the third digit 2 represents Xianyang City, the fourth digit 0 represents Qindu District, and the last two digits 99 represent the First People's Hospital.