J09.XHeader code — not billable
Influenza due to identified novel influenza A virus
- Chapter
- 10. Diseases of the respiratory system
- Category
- J09
- Effective date
- October 1, 2026
Related codes in category J09
J09Influenza due to certain identified influenza virusesJ09.X1Influenza due to ident novel influenza A virus w pneumoniaYesJ09.X2Flu due to ident novel influenza A virus w oth resp manifestYesJ09.X3Influenza due to ident novel influenza A virus w GI manifestYesJ09.X9Flu due to ident novel influenza A virus w oth manifestYes
Frequently asked questions
What is ICD-10 code J09.X?
J09.X is an ICD-10-CM diagnosis code for Influenza due to identified novel influenza A virus.
Is J09.X a billable code?
No. J09.X is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is J09.X in?
J09.X falls under Chapter 10: Diseases of the respiratory system.
When did J09.X become effective?
J09.X has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to J09.X?
J09.X belongs to category J09, which includes 5 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.