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Thread: ICD 10 map forward & Backward

  1. #1

    Default ICD 10 map forward & Backward

    AAPC: Back to School
    Is anyone working on both forward and backward maps for ICD 10_CM to ICD 9?

  2. #2
    Join Date
    Apr 2007
    Sioux Falls South Dakota


    CMS already has GEM files on their website (General Equivalency Mapping). Here is the link to their page about ICD-10 - the links to the GEM files is on the left.

    Also, if you have Encoder Pro or another on-line coding tool, they have mapping also.

    Hope this helps,
    Lucinda (Cindy) McGarry, CPC-P
    Applications Specialist
    Avera Health Plans
    Education Office Sioux Falls SD Local Chapter
    Past President Sioux Falls SD Local Chapter

  3. #3
    Join Date
    Apr 2007
    Oil City


    If you are looking for a quick easy way to work with the GEMS files you can do so on our website at: http://www.aapc.com/ICD-10/codes/index.aspx
    The AAPC code translator tool contains the GEMS files for forward and mapping on the diagnosis side. This tool is free to use.
    Rhonda Buckholtz, CPC, CPC-I, CGSC, COBGC, CEPDC, CENTC
    Vice President, ICD-10
    800-626-2633 ext 183
    Fax: 814-217-0447

  4. #4
    Join Date
    Apr 2007

    Unhappy ICD-9 codes with NO ICD-10 codes

    I am having trouble with a whole list of ICD-9 codes that do not map to ICD-10. Some, like 365.70 was for staging and is no longer required in ICD-10, as stageing is included in the ICD-10 codes.

    However alot of the Accidental poisoning codes (E855.9, E86.20, etc) do not map to ICD-10. Why not?

    Some of the codes (E852.1, E853.8, etc) do seem to crosswalk to T42.6X1, with a 7th digit of A, D or S.... but the mapping tools do not show this. Why not?

    And all of the E codes for 'therapeutic use' do not cross over to anything in ICD-10. Is that term just no longer used so there is no mapping to ICD-10?

    Feeling overwhelmed.

  5. #5
    Join Date
    Apr 2007


    It may be best to just read and study the ICD-10 guidelines, rather than trying to "map" the ICD-9 codes to ICD-10. It may be less overwhelming for you. As you are finding, not all ICD-9 codes are going to have an exact "match" to an ICD-10 code.

    I hope you find this suggestion helpful.
    Teresa Collins, CPC

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