How many digits are there in Taiyuan children's health file number?

16 digits. The number of children's health records in Taiyuan is the only code unified by the state. * * * is divided into four sections, 16. The first paragraph has six digits, indicating administrative divisions at or above the county level; the second paragraph has three digits, indicating villages and towns; the third paragraph has two digits, indicating villagers' committees or residents' committees; and the fourth paragraph has five digits, indicating individual serial numbers of residents.