2 10007。 The Eastern Theater Command is located in Nanjing. According to the postal code of China, the postal code of Qinhuai Medical Area of East Theater General Hospital is 2 10007. Qinhuai Medical Area, the former East Theater General Hospital of China People's Liberation Army Bayi Hospital, was located in Nanjing, the ancient capital of the Six Dynasties, and was established in Tancheng, Shandong Province in 1947+ 10. It was originally a hospital directly under the Ministry of Health of East China Field Army.