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

ICD-10-CM Diagnosis Code (2025)

Official Description for J11

Influenza due to unidentified influenza virus

Coding Notes & Guidelines for J11

Excludes1: Not Coded Here

'intestinal flu' [viral gastroenteritis] (A08.-)

Use Additional Code

code for associated pleural effusion, if applicable (J91.8)

Use Additional Code

code for associated sinusitis, if applicable (J01.-)

Use Additional Code

code for any associated perforated tympanic membrane (H72.-)

Use Additional Code

codes to identify the manifestations

Inclusion Terms

Influenza with pneumonia NOS

Inclusion Terms
  • Influenza NOS
  • Influenzal laryngitis NOS
  • Influenzal pharyngitis NOS
  • Influenza with upper respiratory symptoms NOS
Inclusion Terms

Influenza gastroenteritis NOS

Inclusion Terms

Influenzal encephalopathy NOS

Inclusion Terms

Influenzal myocarditis NOS

Inclusion Terms

Influenzal otitis media NOS

Code Also

associated lung abscess, if applicable (J85.1)

Code Also

other specified type of pneumonia

Child Codes (More Specific Codes for J11):

J11.0 - Influenza due to unidentified influenza virus with pneumonia J11.00 - Influenza due to unidentified influenza virus with unspecified type of pneumonia J11.08 - Influenza due to unidentified influenza virus with specified pneumonia J11.1 - Influenza due to unidentified influenza virus with other respiratory manifestations J11.2 - Influenza due to unidentified influenza virus with gastrointestinal manifestations J11.8 - Influenza due to unidentified influenza virus with other manifestations J11.81 - Influenza due to unidentified influenza virus with encephalopathy J11.82 - Influenza due to unidentified influenza virus with myocarditis J11.83 - Influenza due to unidentified influenza virus with otitis media J11.89 - Influenza due to unidentified influenza virus with other manifestations

About ICD-10-CM Code J11 (Influenza due to unidentified influenza virus)

ICD-10-CM code J11 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM J11 became effective on October 1, 2024.

This page provides detailed information about J11 - Influenza due to unidentified influenza virus. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Influenza due to unidentified influenza virus.