J11 is the ICD-10 code for Influenza, virus not identified. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block J09–J18 (Influenza and pneumonia) in Chapter X, Diseases of the respiratory system.
- Code type
- Category (3 characters)
- Chapter
- X · J00–J99
- Classification
- WHO ICD-10, 2019 version
What J11 includes
Conditions and terms that are coded here.
- influenza
- specific virus not stated to have been identified
- viral influenza
- specific virus not stated to have been identified
What J11 excludes
Conditions that look similar but belong under another code.
Subcodes of J11
J11 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DJ11Influenza uden påvist influenzavirus
J11Influenssa, virusta ei ole osoitettu
J11Grippe, Viren nicht nachgewiesen
J11Grippe, virus non identifié
J11influenza, virus niet-geïdentificeerd
Listed through more specific codes:
- J11.2Influenza due to unidentified influenza virus with gastrointestinal manifestations
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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