How many epidemic prevention and health codes are there in Jiangsu?

Jiangsu has 13 epidemic prevention and health code. According to relevant public information, there are 13 districts and cities in Jiangsu, namely Nanjing, Wuxi, Xuzhou, Changzhou, Suzhou, Nantong, Lianyungang, Huai 'an, Yancheng, Yangzhou, Zhenjiang and Taizhou. Each district and city has its own health code, so it is 13.