X2 – Influenza Due to Identified Novel Influenza A Virus with Other Respiratory Manifestations.
What is influenza A? Influenza A is a type of virus that causes influenza (the flu), a highly contagious respiratory illness. If you get it, you will need to rest at home and avoid infecting others. Vaccination can protect you against influenza A. The other types of influenza virus are type B and type C.
Human H5N1 virus infection generally manifests as severe pneumonia progressing to acute respiratory distress syndrome, but can also present with abdominal pain and diarrhea (1,2). It also demonstrates neurotropism, being isolated in the neurons of animals and asymptomatic individuals (3,4).
A novel influenza A virus is one that has caused human infection, but is different from current seasonal human influenza A viruses that circulate among people. Novel influenza A viruses are usually influenza A viruses that circulate among animals.
Bird flu, also known as avian influenza, is a type A influenza virus. It is lethal to poultry and is potentially fatal in humans. Bird flu spreads between both wild and domesticated birds.
Strains of influenza B are exclusively contracted by humans, while A can be carried (and spread) by animals, however, both strains are transmitted mainly by respiratory droplets from coughing and contact with an infected person.
Avian influenza or bird flu refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses naturally spread among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Bird flu viruses do not normally infect humans.
Avian flu, like other types of influenza, is caused by a virus that infects the respiratory system. As a result, effects on the body often focus on the throat, nose, and lungs. The nose may become congested, the throat may become sore, and a cough or sore throat may occur. A fever and muscle aches may occur.
Avian influenza viruses can be transmitted directly from wild birds to domestic poultry or indirectly e.g. through contaminated material. The virus spreads directly from bird to bird via airborne transmission or indirectly, through faecal contamination of material, feathers or feed.
Influenza due to identified novel influenza A virus with other respiratory manifestations. J09. X2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM J09.
H5N1 is a highly pathogenic avian (bird) flu virus that has caused serious outbreaks in domestic poultry in parts of Asia and the Middle East. Since its widespread re-emergence in 2003, rare, sporadic human infections with this virus have been reported in Asia, and later in Africa, Europe, and the Middle East.
It is known that avian influenza H5N1 viruses can occasionally infect but not transmit among humans, while the 2009 pandemic H1N1 virus (which continues to circulate) readily transmits from person to person.