J09: Influenza due to certain identified influenza viruses
Codes under J09 (Influenza due to certain identified influenza viruses). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| J09.X | Influenza due to identified novel influenza A virus | — |
| J09.X | Influenza due to identified novel influenza A virus | — |
| J09.X1 | Influenza due to identified novel influenza A virus with pneumonia | ✓ |
| J09.X1 | Influenza due to identified novel influenza A virus with pneumonia | ✓ |
| J09.X2 | Influenza due to identified novel influenza A virus with other respiratory manifestations | ✓ |
| J09.X2 | Influenza due to identified novel influenza A virus with other respiratory manifestations | ✓ |
| J09.X3 | Influenza due to identified novel influenza A virus with gastrointestinal manifestations | ✓ |
| J09.X3 | Influenza due to identified novel influenza A virus with gastrointestinal manifestations | ✓ |
| J09.X9 | Influenza due to identified novel influenza A virus with other manifestations | ✓ |
| J09.X9 | Influenza due to identified novel influenza A virus with other manifestations | ✓ |
Frequently asked questions
What is ICD-10-CM code J09?
J09 is an ICD-10-CM category covering Influenza due to certain identified influenza viruses. It contains 10 more specific diagnosis codes, 8 of which are billable.
Is J09 a billable code?
No — J09 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example J09.X — Influenza due to identified novel influenza A virus). 8 of the 10 codes under J09 are billable.
What codes fall under J09?
J09 includes J09.X, J09.X, J09.X1, J09.X1, J09.X2, plus 5 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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