J09: Influenza due to certain identified influenza viruses excludes1 influenza A/H1N1 (J10.-) influenza due to other identified influenza virus (J10.-) influenza due to unidentified influenza virus (J11.-) seasonal influenza due to other identified influenza virus (J10.-) seasonal influenza due to unidentified influenza virus (J11.-) |
| J09.X: Influenza due to identified novel influenza A virus |