J11.1 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 oth resp manifest. The 2022 edition of ICD-10-CM J11.1 became effective on October 1, 2021.
2019 ICD-10-CM Guidelines: Signs/Symptoms/Unspecified – Part 1 of 3
ICD-10-CM Coding of Respiratory Conditions
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