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J09

Influenza due to certain identified influenza viruses

• 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

• Avian influenza
• Bird influenza
• Influenza A/H5N1
• Influenza of other animal origin, not bird or swine
• Swine influenza virus (viruses that normally cause infections in pigs)

J09.X1

Influenza due to identified novel influenza A virus with pneumonia

• , if applicable, associated:
• lung abscess (J85.1)
• other specified type of pneumonia

J09.X2

Influenza due to identified novel influenza A virus with other respiratory manifestations

• Influenza due to identified novel influenza A virus NOS
• Influenza due to identified novel influenza A virus with laryngitis
• Influenza due to identified novel influenza A virus with pharyngitis
• Influenza due to identified novel influenza A virus with upper respiratory symptoms

J09.X3

Influenza due to identified novel influenza A virus with gastrointestinal manifestations

• 'intestinal flu' [viral gastroenteritis] (A08.-)

• Influenza due to identified novel influenza A virus gastroenteritis

J09.X9

Influenza due to identified novel influenza A virus with other manifestations

• Influenza due to identified novel influenza A virus with encephalopathy
• Influenza due to identified novel influenza A virus with myocarditis
• Influenza due to identified novel influenza A virus with otitis media