ICD-10-CM · Chapter 10 · J00-J99
J09 Influenza due to certain identified influenza viruses
Excludes 1 (cannot be coded together)
- 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.-)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| J09..X | Influenza due to identified novel influenza A virus | No |
| J09..X1 | Influenza due to identified novel influenza A virus with pneumonia | Yes |
| J09..X2 | Influenza due to identified novel influenza A virus with other respiratory manifestations | Yes |
| J09..X3 | Influenza due to identified novel influenza A virus with gastrointestinal manifestations | Yes |
| J09..X9 | Influenza due to identified novel influenza A virus with other manifestations | Yes |
Last reviewed: September 2026