U.S. ICD-10-CM · FY 2027

J11 ICD-10-CM Code: Influenza due to unidentified influenza virus

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

Code definition

Official description

J11

Influenza due to unidentified influenza virus

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

Classification

Where J11 sits

  1. 1

    Chapter 10

    Diseases of the respiratory system (J00-J99)

  2. 2

    Section

    Influenza and pneumonia (J09-J18)

  3. 3

    Category J11

    Influenza due to unidentified influenza virus

  4. 4

    Code J11

    Influenza due to unidentified influenza virus

More specific choices

Codes under J11

J11 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for J11.

Code first

No “code first” instruction is listed for J11.

Use additional code

No “use additional code” instruction is listed for J11.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for J11.

Excludes2

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

No Excludes2 note is listed for J11.

Transparency

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

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code J11 mean?

J11 is the FY 2027 U.S. ICD-10-CM code for “Influenza due to unidentified influenza virus.”

Is J11 a billable or specific ICD-10-CM code?

No. J11 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 J11 located in ICD-10-CM?

J11 is listed in Chapter 10, Diseases of the respiratory system (J00-J99), within Influenza and pneumonia (J09-J18) (J09–J18), under category J11, Influenza due to unidentified influenza virus.

What coding notes are listed for J11?

No inclusion terms are listed for J11 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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