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J09 ICD-10-CM Code: Influenza due to certain identified influenza viruses

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Official description

J09

Influenza due to certain identified influenza viruses

ICD-10-CM diagnosis code · United States clinical modification

Where J09 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Influenza and pneumonia (J09-J18)

  3. 3

    Category J09

    Influenza due to certain identified influenza viruses

  4. 4

    Code J09

    Influenza due to certain identified influenza viruses

Codes under J09

J09 is a non-billable category. Choose the child code that best matches the documented diagnosis.

J09.XInfluenza due to identified novel influenza A virus

Notes for this code

Inclusion terms

No inclusion terms are listed for J09.

Code first

No “code first” instruction is listed for J09.

Use additional code

No “use additional code” instruction is listed for J09.

Excludes1

Conditions that should not be reported together with this code.

  • 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.-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for J09.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Frequently asked questions

What does ICD-10-CM code J09 mean?

J09 is the FY 2027 U.S. ICD-10-CM code for “Influenza due to certain identified influenza viruses.”

Is J09 a billable or specific ICD-10-CM code?

No. J09 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is J09 located in ICD-10-CM?

J09 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Influenza and pneumonia (J09-J18) (J09–J18), under category J09, Influenza due to certain identified influenza viruses.

What coding notes are listed for J09?

No inclusion terms are listed for J09 in this reference record. No code-first instruction is listed. Excludes1 notes: 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.-). No Excludes2 note is listed.