ICD-10 Code for Influenza
The default ICD-10-CM 2027 code for influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) is J11.1 – Influenza due to unidentified influenza virus with other respiratory manifestations. More specific codes depend on the details documented, as listed in the official index (22 codes, 21 billable).
- Main code
J11.1– Influenza due to unidentified influenza virus with other respiratory manifestations- Billable
- Yes
Index entries for Influenza
- with
- digestive manifestations –
J11.2 - encephalopathy –
J11.81 - enteritis –
J11.2 - gastroenteritis –
J11.2 - gastrointestinal manifestations –
J11.2 - laryngitis –
J11.1 - myocarditis –
J11.82 - otitis media –
J11.83 - pharyngitis –
J11.1 - pneumonia –
J11.00- specified type –
J11.08
- specified type –
- respiratory manifestations NEC –
J11.1 - specified manifestation NEC –
J11.89
- digestive manifestations –
- A (non-novel) –
J10-(header) - A/H5N1 –
J09.X2– see also Influenza, due to, identified novel influenza A virus - avian –
J09.X2– see also Influenza, due to, identified novel influenza A virus - B –
J10-(header) - bird –
J09.X2– see also Influenza, due to, identified novel influenza A virus - C –
J10-(header) - due to
- avian –
J09.X2– see also Influenza, due to, identified novel influenza A virus - identified influenza virus NEC –
J10.1- with
- digestive manifestations –
J10.2 - encephalopathy –
J10.81 - enteritis –
J10.2 - gastroenteritis –
J10.2 - gastrointestinal manifestations –
J10.2 - laryngitis –
J10.1 - myocarditis –
J10.82 - otitis media –
J10.83 - pharyngitis –
J10.1 - pneumonia (unspecified type) –
J10.00 - respiratory manifestations NEC –
J10.1 - specified manifestation NEC –
J10.89
- digestive manifestations –
- with
- identified novel influenza A virus –
J09.X2- with
- digestive manifestations –
J09.X3 - encephalopathy –
J09.X9 - enteritis –
J09.X3 - gastroenteritis –
J09.X3 - gastrointestinal manifestations –
J09.X3 - laryngitis –
J09.X2 - myocarditis –
J09.X9 - otitis media –
J09.X9 - pharyngitis –
J09.X2 - pneumonia –
J09.X1 - respiratory manifestations NEC –
J09.X2 - specified manifestation NEC –
J09.X9 - upper respiratory symptoms –
J09.X2
- digestive manifestations –
- with
- avian –
- novel (2009) –
J10.1– see also Influenza, due to, identified influenza virus NEC - novel influenza A/H1N1 –
J10.1– see also Influenza, due to, identified influenza virus NEC - of other animal origin, not bird or swine –
J09.X2– see also Influenza, due to, identified novel influenza A virus - swine (viruses that normally cause infections in pigs) –
J09.X2– see also Influenza, due to, identified novel influenza A virus
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.