MCMedicalCodingSoftware
J09

J09: Influenza due to certain identified influenza viruses

Non-billable headerICD-10-CM

J09 is a non-billable header ICD-10-CM code for influenza due to certain identified influenza viruses. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • 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.-)

Other codes that can never be billed with J09

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G94Other disorders of brain in diseases classified elsewhere
  • H67Otitis media in diseases classified elsewhere
  • I41Myocarditis in diseases classified elsewhere
  • J00Acute nasopharyngitis [common cold]
  • J02.9Acute pharyngitis, unspecified
  • J03.9Acute tonsillitis, unspecified
  • J06Acute upper respiratory infections of multiple and unspecified sites
  • J10Influenza due to other identified influenza virus

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

The condition this code belongs to

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead J09

1 child code. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.