HL7 filter out messages that has specific tekst in PID segment

Question

Question

Mark Franssen · Oct 29, 2021

I am relativly new to this, so excuse me if i am asking a dumb question

HL7 schema is 2.4

When a HL7 message comes in and in the PID segment on spot 4 the word "Relation" is written, i want to filter out those messages through a Router Rule.

I have come up with several rules (when conditions), here are some examples.

HL7.{PID:4} CONTAINS "Relation"

or

HL7.{PID:AlternatePatientIDPID(1).ID} CONTAINS "Relation"

I have tried a lot of different Rules, but no luck yet.

But every time i test a massege what contains the word Relation in de PID segment on spot 4 it states ".....no whens matched...."

What am i doing wrong??

Product version: HealthShare 2020.1

Discussion (6)0

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Mark Franssen · Nov 1, 2021

It works now, thanx everyone:

I now have "HL7.{PID:4.1} Contains "Relatie"" filled in the rule.

When testing i used the wrong Doctype apparantly, i should use: 2.4:ADT_A01

Probably the condition i posted in the beginning should have worked to, but this one is more simple to read and use.

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score 0 · Answer 1 · 2021-10-29T10:44:59-04:00

Hello,

I would double check the spelling as your question and code snippet have different values e.g. "Relation" vs "Relatie". Generally, I would create and call a custom ObjectScript function to accomplish what you are looking to do as that would allow you greater flexibility and greater control as well in my opinion.

Thanks,

Chris

score 0 · Answer 2 · 2021-11-01T05:05:40-04:00

Thanx, but the spelling is correct, i only translated the word into English, should'nt have done that.

On the other hand, now you know the Dutch word for Relation.

I don't know the sollution you suggest (Objectscript), i will dive into this and see what i can learn.

Any tips on how to begin whit that?

Someone who knows what i am doing wrong in this Rule?

score 0 · Answer 3 · 2021-11-01T05:14:00-04:00

CONTAINS wraps ObjectScript $FIND() and just checks raw characters.
So no code conversion or Upper/Lower or anything else happens.
Suggestion:
dump the value you expect into a TRACE message and see what it really is

score 0 · Answer 4 · 2021-11-01T05:36:36-04:00

When i do this, it works fine
HL7.RawContent CONTAINS "Relatie"

But there maybe other fields that can contain this word, so i want to narrow it down to the PID segment place 4.

This says that the first part was wrong initally: "HL7.{PID:AlternatePatientIDPID(1).ID}"

So how do i check on the PID segment, place 4?

score 0 · Answer 5 · 2021-11-01T06:54:28-04:00

If this "HL7.{PID:AlternatePatientIDPID(1).ID}" just doesn't exist CONTAINS must fail.
You could put your HL7 messages as input to a dummy DataTransformation to see
the available parts and their addressing and then apply it here