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Thread: Swine flu (h1n1) icd-9 code?

  1. #1
    Join Date
    Apr 2007

    Default Swine flu (h1n1) icd-9 code?

    AAPC: Back to School
    What is the proper ICD-9 code to use for a confirmed case of (H1N1) Seine Flu???? 478.1 or 488, or soemthing else I am not seeing?


  2. #2



    There is no specific ICD-9-CM code for swine or H1N1 flu.
    Use code 487.1, Influenza with respiratory manifestation [Influenza, unspecified].

    Depending on the documentation in the patient record you may want to check ICD-9-CM code category 487 for coding documented influenza with other manifestations or pneumonia.

    Good luck.

  3. #3
    Join Date
    Apr 2007
    International Member


    The new codes are as follows, (u can use new pdf file for ICD 9 CM published on CMS)

    488.0 Influenza due to identified avian influenza virus
    Avian influenza
    Bird flu
    Influenza A/H5N1

    488.1 Influenza due to identified novel H1N1 influenza virus
    2009 H1N1 [swine] influenza virus
    Novel 2009 influenza H1N1
    Novel H1N1 influenza
    Novel influenza A/H1N1
    Swine flu

  4. #4
    Join Date
    Apr 2007
    Columbia, MO


    Agree these codes were active for visits on or after OCtober 1 2009. They are in the 2010 code book and available from the CDC's download of new codes for October 2009.

    Debra A. Mitchell, MSPH, CPC-H

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