How do I create an HL7 variant to insert FHS/BHS before MSH?

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  • #49585
    Justin Olson
    Participant

    I am trying to create a variant that will allow me to insert FHS and BHS prior to the MSH, but it will not let me.

    Does anyone have any tips?

    Thanks,

    Justin

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    • #62594
      James Cobane
      Participant

      Justin,

      You won’t be able to create a variant with the BHS/FHS as the HL7 configurator is based on a ‘message’ paradigm, where BHS/FHS are used for a ‘batch’ of HL7 messages.  You’ll need to create(or remove) the BHS/FHS segments in a tps proc.

      Hope this helps.

      Jim Cobane

      Henry Ford Health

    • #62595
      Barb Dozier
      Participant

      You are right, it won’t let you.  Or at least we found that creating a tcl script took care of the issue.  We had to create a file to send charges to meditech so we created a script that created the file and wrote the FHS/BHS segments at the same time.  When the end of the desired messages was identified, the script then inserts the BTS/FTS segments as well.

      Barb Dozier

    • #62596
      Justin Olson
      Participant

      Thank you both for your replies.  Is that script something that can be shared?  In the past when we’ve sent data to clients that use Meditech the clients apply these headers and trailers.  This will most likely not be the case here.

    • #62597
      Barb Dozier
      Participant

      Below is a section of code where we create the file and add the fhs/bhs segments.  This snippet is in the RUN section of a tps proc.  Hope this helps.

       set slash “\”

       set carrot “^”

       set rep “~”

       set sub “&”

       set field “|”

       set sendApp $systemName

       set fhs “FHS”

       set bhs “BHS”

       set recApp “BAR”

       set msgCtl “”

       set segEnd r

       

       # set directory path

       set root_path [exec env HCIROOT]

       #echo “ROOTpath: $root_path”

        set site_path [exec env HCISITEDIR]

        #echo “SITEpath: $site_path”

        append site_path “/billingOUT/”

        #echo “SITEpath: $site_path”

        ;# Get the time in system seconds

        set systemTime [clock seconds]

        ;# Set the time using the hour, minute and second descriptors.

       set CurDate [clock format $systemTime -format {%Y%m%d}]

       set CurDateTime [clock format $systemTime -format {%Y%m%d%H%M}]

       #echo “CurDate: $CurDate”

                 

       # set the user data… for the message

       set filename [append systemName “.” $hosp “.” $CurDate]

       set fullname $site_path$filename

       if {![file exists $fullname] } {

           echo “File doesn’t exist”

           set curFileID [open $fullname a+]

           puts $curFileID $fhs$field$carrot$rep$slash$sub$field$sendApp$field$hosp$field$recApp$field$hosp$field$CurDateTime$segEnd

           puts $curFileID $bhs$field$carrot$rep$slash$sub$field$sendApp$field$field$field$field$CurDateTime$segEnd

           close $curFileID

       }

    • #62598
      Rick Pritchett
      Participant

      Do you use a seperate proc to add the BTS and FTS segments.  (a pre and post proc).  Or do you do this all at once?

    • #62599
      Barb Dozier
      Participant

      We actually do it separately.  Code section is basically the same but we add the trailer segments in the same script that we move the file where it needs to go.

      Barb

    • #62600
      Rick Pritchett
      Participant

      Might i see the code to do this i am also interested in how you are moving the file.  I would like to use ftp as little as possible.  Before i used a simple bat file in the task manager to rename and another to move the file to a mapped drive.

    • #62601
      Mike Grieger
      Participant

      Though I also prefer to take care of headers/trailers in a tcl proc, it IS possible to add them to a variant.  You just have to add it manually, outside of the GUI.  Used to have this configuration on a billing interface.

    • #62602
      Barb Dozier
      Participant

      What do you mean and how do you do it “outside the GUI”?

      Barb

    • #62603
      Mike Grieger
      Participant

      I mean manually edit the variant message type by using your text editor of choice (vi for Unix or notepad for Windows, etc.).  If we’re talking about the DFT message type, navigate to that variant/message type from command line, and edit it.

      If that message type would be (as a simplified example):

      MSH

      PID

      FT1

      edit it to be

      FHS

      {

        MHS

        PID

        FT1

      }

      FTS

      Then the Xlate will recognize that structure.

    • #62604
      Barb Dozier
      Participant

      Our move process is actually a couple steps.  First we get all files into a central directory and then use Samba to move them off our AIX machine to the multiple resulting locations.

      I’ve attempted to attached example scripts that we call from cron for this process.  If you have issues accessing them, please contact me directly.

      Thanks, Barb

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