| J11 | Influenza due to unidentified influenza virus | NON-BILLABLE CODE |
| J11.0 | Influenza due to unidentified influenza virus with pneumonia | NON-BILLABLE CODE |
| J11.00 | Influenza due to unidentified influenza virus with unspecified type of pneumonia | BILLABLE CODE |
| J11.1 | Influenza due to unidentified influenza virus with other respiratory manifestations | BILLABLE CODE |
| J11.2 | Influenza due to unidentified influenza virus with gastrointestinal manifestations | BILLABLE CODE |
| J11.8 | Influenza due to unidentified influenza virus with other manifestations | NON-BILLABLE CODE |
| J11.81 | Influenza due to unidentified influenza virus with encephalopathy | BILLABLE CODE |
| J11.82 | Influenza due to unidentified influenza virus with myocarditis | BILLABLE CODE |
| J11.83 | Influenza due to unidentified influenza virus with otitis media | BILLABLE CODE |
| J11.89 | Influenza due to unidentified influenza virus with other manifestations | BILLABLE CODE |
