Influenza icd 9 July 8, 2019 16 32 64 128 Influenza icd 9 code Haemophilus influenza icd 9 Influenza vaccine icd 9 Influenza infection icd 9 Influenza virus icd 9 Influenza like illness icd 9 Influenza b infection icd 9 Influenxa icd 10