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ICD-10-CM Codes
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J00-J99
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J09-J18
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J11-
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2023 ICD-10-CM Diagnosis Code J11.81
2023 ICD-10-CM Diagnosis Code J11.81
Influenza due to unidentified influenza virus with encephalopathy
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- J11.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Flu due to unidentified influenza virus w encephalopathy
- The 2023 edition of ICD-10-CM J11.81 became effective on October 1, 2022.
- This is the American ICD-10-CM version of J11.81 - other international versions of ICD-10 J11.81 may differ.
Applicable To- Influenzal encephalopathy NOS
The following code(s) above
J11.81 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
J11.81:
- Influenza with encephalopathy
ICD-10-CM J11.81 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 865 Viral illness with mcc
- 866 Viral illness without mcc
Convert J11.81 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to J11.81:
- Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) J11.1
ICD-10-CM Diagnosis Code J11.1
Influenza due to unidentified influenza virus with other respiratory manifestations
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Influenza NOS
- Influenzal laryngitis NOS
- Influenzal pharyngitis NOS
- Influenza with upper respiratory symptoms NOS
Use Additional- code for associated pleural effusion, if applicable (J91.8)
ICD-10-CM Codes Adjacent To J11.81
J10.82 Influenza due to other identified influenza virus with myocarditis
J10.83 Influenza due to other identified influenza virus with otitis media
J10.89 Influenza due to other identified influenza virus with other manifestations
J11 Influenza due to unidentified influenza virus
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
J12 Viral pneumonia, not elsewhere classified
J12.0 Adenoviral pneumonia
J12.1 Respiratory syncytial virus pneumonia
J12.2 Parainfluenza virus pneumonia
J12.3 Human metapneumovirus pneumonia
J12.8 Other viral pneumonia
J12.81 Pneumonia due to SARS-associated coronavirus
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
