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HL7 Variant Definition

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  • July 14, 2005 at 6:02 pm #47901
    Kathy Young
    Participant

      I have lab results that are coming in as:

      {

      OBX

      [{NTE}]

      }

      I need to add a segment, ZL1. For each OBX, I need one ZL1, followed by whatever NTE segments are present.

      Inbound —> Desired outbound — > Actual outbound

      OBX|2|             OBX|2|                       OBX|2|

                             ZL1|1|                        ZL1|1|

      NTE|1|              NTE|1|                        NTE|1|

      NTE|2|              NTE|2|                        ZL1|2|

                                                              NTE|2|

      My HL7 variant looks like this:

      {

      OBX

      ZL1

      [{NTE}]

      }

      My translate is a nested iteration – for the OBX/ZL1/NTE group repeat, with a nested iteration for the NTE segment repeat.

      What did I do wrong?

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      • July 15, 2005 at 2:43 pm #57024
        Nathan Martin
        Participant

          Well it looks right.  It seems like if the OBX is a required segment, at least an empty OBX would precede the second ZL1.

          Are you sure your translation is using the outbound format like the one you show?

          Did you save the format?

          Did you cycle the process, or run the message through a test translation?

          There aren’t any other procs deleting extra OBX’s are there…?

        • July 15, 2005 at 8:29 pm #57025
          Robert Milfajt
          Participant

            What does your iterate look like?  I’ll bet that’s where the problem is.

            Robert Milfajt
            Northwestern Medicine
            Chicago, IL

          • July 15, 2005 at 8:40 pm #57026
            Kathy Young
            Participant

              Thanks to those with helpful hints. I did figure this out earlier today. You’re right, Bob, there was an iteration problem.

              Since I have to conjure up the ZL1 segment, I had to add an IF statement before the ZL1 copy to say that I only want one ZL1 per OBX. The way the iteration was written at first was to keep looping through OBX->ZL1->NTE group for as many NTE’s as occurred.

              Kathy

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