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Re: st: RE: icd10, dsmiv


From   khigbee@stata.com
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: icd10, dsmiv
Date   Thu, 11 Aug 2005 16:36:21 -0500

Scott Merryman <smerryman@kc.rr.com> says:

> Not knowing what ICD10 codes are and letting ignorance be an impediment, I
> download the 4 character codes from http://www.wolfbane.com/icd/, saved the
> data set as icd10.dta and altered -icd9- (saving it as -icd10- ) so it would
> accept the new data set.  The functions -icd10 search- , -icd10 lookup-, and
> -icd10 gen- seem to work (see examples below).
> 
> <cut>

There are several reasons why StataCorp has not implemented
ICD-10.  Two of the leading ones are:

    1. Copyright issues.  If curious, see

         http://www.who.int/about/licensing/classifications/en/

       some of the phrases under the "commercial use" category
       include

           "... need to have a Licence Agreement with WHO.
            ... in exchange for a licence fee."

           "... time limited licence ..."

           "No amendment of the codes or text of the
           classification in any way"

     2. Some code descriptions are very long -- close to 200
        characters in length.  See codes Y83, Y88.3, and 099.1 as
        examples.

        Notice that in this regard the copyright forbids any
        alteration (such as a shortened version of the
        description).

In regards to the data Scott found, it appears from the first
lines of that web page that it is the 1989 version of the ICD-10
codes.  If you go to

    http://www.who.int/classifications/icd/en/

and click the link called "current version" it takes you to

    http://www3.who.int/icd/vol1htm2003/fr-icd.htm

which indicates that the current ICD-10 is the 2003 version.

I am not sure (one way or the other) whether Scott's -icd10- user
written program is legal for a researcher to use or whether the
data are up to date enough for your needs, but I thought I should
let you know why an official Stata -icd10- command has not been
implemented.

Ken Higbee    khigbee@stata.com
StataCorp     1-800-STATAPC

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