Influenza due to identified novel influenza A virus with other respiratory manifestations. 1  J09.X2 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
Cavities take time to form. A person doesn't just get a cavity overnight. It typically takes months, or possibly even years, before the decay process has advanced to a point where it requires attention. (That's why your dentist feels comfortable enough only examining you every 6 months.)
Tooth decay is one possibility. Generally children who start to lose baby teeth early tend to be those who cut their baby teeth early (before 4 to 7 months). Likewise, those who are 8 years old and still have baby teeth are usually kids whose teeth were late coming in (usually after 12 months).