At 02:07 PM 4/19/2001 -0700, Karsten M. Self wrote: >on Thu, Apr 19, 2001 at 04:34:44PM -0400, Ephraim Shapiro >(ephraim.shapiro@NYU.EDU) wrote: > > Hi, > > I am working with Medicaid data that contains ICD9 codes but need > > to do analysis based on CPT codes. Does anyone know of any mapping > > tables or software that's available for free (or at least relatively > > low-cost) to perform this conversion? > > Thank you in advance for any information on this. > >They're different beasts.

True

> There is no mapping.

Can't remember where, *BUT* there have been partial, lose, mappings.

>ICD9 codes are diagnostic codes.

Don't forget the ICD-9 Proc codes - it's these that tend to map to CPT's especially if you've a reliably exogenous measure of Place and/or Type of Service.

Ephraim, let this post hang out for awhile as there are other folks here on the List who I think might respond, but are more Eastern-based than us here in California at 5:05 PM.

> CPT-4 codes are treatment codes. While there is typically a relationship > between diagnosis and treatment, >one cannot be determined from the other. > >-- >Karsten M. Self <kmself@ix.netcom.com> http://kmself.home.netcom.com/ > What part of "Gestalt" don't you understand? There is no K5 cabal > http://gestalt-system.sourceforge.net/ http://www.kuro5hin.org

---------------------------------------------------------------------------- William W. Viergever Voice : (916) 483-8398 Viergever & Associates Fax : (916) 486-1488 A SAS Institute Quality Partner (USA) E-mail : wwvierg@attglobal.net Sacramento, CA 95825 ----------------------------------------------------------------------------