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#HL7

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Health Level-7 or HL7 refers to a set of international standards for the transfer of clinical and administrative data between software applications used by various healthcare providers

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Question
· Nov 13, 2023
Message data global

Hello,

We noticed from the integrity logs that some of the namespaces in our integration engine are using large amount of space ( ~380GB ) for the global ^EnsHL7.Segment.

We have culling implemented for large globals like MessageHeader and MessageBody.

Is it a standard process to implement culling for ^EnsHL7.Segment global and any idea about what will be the impact of adding culling to this global?

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Good morning,

First of all we would like to thank you for your time reading, thinking and aswering this question.

We have been developing a Transformation to convert a source ORU_R01 to a target ORU_R01. For each OBX segment we need to check an if, and then, if it is true we just need to put this OBX and continue to the next iteration, otherwise, if it is false, we need to put (copy) the ORC + OBR + TQ1 before this OBX, and then put this OBX, and after that, the SPM.

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Hello,

First of all, thanks for your help, and time, reading this questions, and answering to this doubt.

We have the following use case: to convert a HL7 ER7 ORU_R01 v2.5 message, to a Ens.Request Message which represent it with a custom data structure (each segment is a group of Properties).

To be more precise, the target Ens.Request Message's structure looks like:

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Hello,

I have a problem attempting to store a base 64 encode stream into the OBX:5 field of a HL7 message, by using the StoreFieldStreamBase64 method.

I'm using a transformer to input the contents of a pdf within a stream container (Ens.StreamContainer). The output is a HL7 message (EnsLib.HL7.Message 2.5:ORU_R01).

The transformer is being used in a business process.

This is the code used in the transformer to encode the stream to base 64:

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We have this intermittent issue with a particular supplier message , just wondering if anyone has further insight around the two errors we get when we see this.

We use the out of the box TCP hl7 adapter.

We first seem to get this incomplete hl7 message resulting in an error like

Discarding leftover input 'MSH|

This is not unexpected as the final obx has not dot the description of OBX:2.2 ect. 

OBX|53|TX|NCDAC^

The next message will have the error

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We need to generate a PDF file from an HL7 message as it passes through an Ensemble production. Looking for examples, tutorials, documentation aligned to our scenario.

We are currently using Ensemble (so can't use InterSystems Reports at the moment). Thinking Zen reports...

We can get from HL7 to XML OK, following Introduction to InterSystems Health Connect - YouTube (see c.1:11:00-1:13:00)

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Greetings.

I have a scenario in ENSEMBLE, where a business process router A is dependent on another business process router B. If B shuts down for some reason, A has to be disabled as well.

Do i need to write a custom process for B and call the call back method onShutdown or something?

Any suggestions would be appreciated.

Thanks,

Jimmy Christian.

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Question
· Jul 27, 2023
Rule logic

In an HL7 Business rule I am trying to block ONLY ORM messages that have a PV1:3.4 of 105 or 205 and a OBR:4 value of EP22 or CATH01.

I created the logic below but it appears to be evaluating the two fields independently instead of combined?

Here is what I had.

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I have been successfully able to transform hand-written medical test results documents to HL7 ORU_R01 v2.x, then to SDA, which will be trasformed to FHIR or C-CDA.

However, I have a category of documents which contains reference range in multiple date formats, which are measured for each gestation period.
For example, below is one of the documents.

Analyte: HCG, Value: 1968, Unit: mlU/mL

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How to import Custom Schemas from VSCode? They look like this:

<?xml version="1.0"?>
<Category name="ITK" description="xmlns:hl7='urn:hl7-org:v2xml' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" std="1">
<MessageType name='ACK' structure='ACK' returntype='ACK' description='xsi:schemaLocation="urn:hl7-org:v2xml ACK.xsd"'/>
</Category>

Instead of wrapped XML export produced by $system.OBJ:

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Hi all,

I'm wondering if is possible to call to a BO from a HL7 Route according to a parameter of the HL7 Message

I mean,

According to the identify of the laboratory, I want to call to other TCP process to retrieve information about blood tests.

We are creating the BO using this partern.

LAB.BO.TCP. + name of the laboratory.

The name of the laboratory is stoted in the lookup table T_LABORATORIOS

I've tried to assign the name into a variable and put it in the "send" instruction, but it doesn't work.

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Curious if anyone has modified the HL7 TCP/IP Service and adapter class to receive an HL7 message, ACK it, and just dump it straight to a file? I don't want the messages in the engine at all - just receive and dump. Has anyone done this before and have code you're willing to share?

Thank you very much in advance!

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Hi,

we get HL7 MDM messages with embedded PDF documents that are Base64 encoded. When the embedded PDF document exceeds the size of 3.6 MB the following error occurs:

FEHLER <Ens>ErrBPTerminated: BP Main HL7 MDM # wird wegen folgenden Fehlers beendet: FEHLER #5002: Caché-Fehler: <MAXSTRING>zgetAtFromArray+46^EnsLib.HL7.Segment.1
> FEHLER #5002: Caché-Fehler: <MAXSTRING>zgetAtFromArray+46^EnsLib.HL7.Segment.1

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Hello, I want to show a fellow DC member how to convert JSON file into HL7 message. I personally do not work with HL7. I set up a production with EnsLib.File.PassthroughService. It passes Ens.StreamContainer to BPL process. I call a DTL to transform StreamContainer to HL7 message. I run into an error:

ERROR <Ens>ErrBPTerminated: Terminating BP JSON2HL7 # due to error: ERROR #5035: General exception Name 'Parsing error' Code '3' Data ''
> ERROR #5035: General exception Name 'Parsing error' Code '3' Data ''

The code is in this GitHub repo:

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I'm testing an HL7 2.4 -> HL7 2.3.1 set of transformations. For the time being the source (service) and sink (operation) are file adapters. What I'd really like is to be able to save the output file with a name matching/containing the input file name - but as the DTL transformation in between uses "new" rather than "copy" it looks like I'm losing (some of?) the metadata, including the "Source" field (Body tab, message viewer).

Is there any way of preserving the Source field so the OutboundAdapter has access to it?

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Morning everyone,

I would appreciate some advice please- hopefully there is plenty of experts out there.

We are setting up an sFTP share between hospital trusts here in the UK and I have set the outbound operation up using a custom extension of EnsLib.HL7.Operation.FTPOperation.

We are configuring a VPN tunnel to run between the sites also so there is a bit of firewall / network routing to take place to enable the connection but to add in a complication we are on a mirrored cluster and usually present on a Virtual IP address.

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Hi all.

I have a scenario where I am receiving NACKs and I'd like to adjust the error handing of the operation based on the content of the NACK.

For example, I could receive the following and want to move onto the next message:

MSH| ^~\&|||||20221025083135.489+0100||ACK ^A02^ACK|9271|D|2.5.1
MSA|AE|1664378390234
ERR|||207 ^Application internal error ^HL70357^^^^^^Cannot transfer patient, encounter is cancelled.|E

However, I could also receive the following and want to keep retrying:

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Hi all.

I have setup a HL7 Operation using the HTTP adapter, and I'm getting what seems to me as an unusual response. When sending a sample message to the operation, I am getting a nested ACK. For example:

MSH|^~\&|||xxx|xxx|202209230806||ACK^HTTP^200|00|D|2.1|1
MSA|AA|RWSD7V5iuEC5F6zscDWz|HTTP ACK 'HTTP/1.1 200 OK' : MSH|^~\&|yyy|yyyy|xxx|xxx|20220923080633||ACK^A01|1663916793965||2.3||||||
MSA|CR|RWSD7V5iuEC5F6zscDWz|Error Message Goes Here.

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I am trying to split a HL7 message (RDE O11) into several messages depending on how many RXC segments there are in the message (Two RXC segments would need to two separate HL7 messages)

I have seen a couple of posts regarding this but am struggling with my BP using ObjectScript, the idea is to take the receiving message and split this before passing it onto another BP

Here is my code so far

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