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ICD-10-CM 2027

ICD-10 code for B influenza)

J10

Influenza due to other identified influenza virus

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) › B”. Page updated September 29, 2026.

About coding B influenza)

The ICD-10-CM code for B influenza) is J10 (Influenza due to other identified influenza virus).

To report this condition, pick the subcode that matches the documentation: J10.0 (with pneumonia), J10.1 (with other respiratory manifestations), J10.2 (with gastrointestinal manifestations) and J10.8 (with other manifestations).

Don't report J10 together with the conditions in its Excludes1 note: influenza due to avian influenza virus (J09.X-), influenza due to swine flu (J09.X-) and influenza due to unidentifed influenza virus (J11.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Don't confuse with (Excludes1 for J10)

  • influenza due to avian influenza virus (J09.X-)
  • influenza due to swine flu (J09.X-)
  • influenza due to unidentifed influenza virus (J11.-)

Common questions about B influenza) ICD-10 codes

What is the ICD-10 code for B influenza)?

J10 — Influenza due to other identified influenza virus (a header code; report a more specific subcode).

Is J10 billable?

No. J10 is a header code. Report one of its more specific subcodes instead.