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
Introduction
The recent addition of FIFO groups allows First-In, First-Out (FIFO) message processing to be maintained in an interoperability production even when a Pool Size is greater than 1, enabling higher performance without sacrificing correctness. This feature first appears in InterSystems IRIS® data platform, InterSystems IRIS® for Health, and InterSystems Health Connect™ in version 2025.3.
While reviewing our Orphan messages, we noticed that there are some Orphans that look like they are the start of an HL7 message.
MSH|^~\&
Since this does not link to any Message Header, and most of the information in EnsLib_HL7.Message is NULL, is there a way to track down what Object maybe creating these so we can nip it in the bud.
Only way that I know of is to go through each of our Schema's and make both the MSH and Encoding Characters optional.
Hi Communtiy,
I am a begineer who is working and trying to understand Intersystems. I am developing an Ensemble interface which receives a XML message and converts it into HL7 format without using enslib.HL7 classes.
Requirement
1. My file consists of patient details which needs to be updated in a sql table whenever the same patient arrives. We need to check if the patient exists and convert it into a pId segment.
Hi Community,
In this article, I will introduce my application iris-HL7v2Gen .
IRIS-HL7v2Gen is a CSP application that facilitates the dynamic generation of HL7 test messages. This process is essential for testing, debugging, and integrating healthcare data systems.
The InterSystems Ready 2026 Conference is approaching fast — it's a great time to prepare and check your knowledge before attempting one of the Certification exams onsite .
InterSystems certifications aren't easy: you need to practice with questions aligned to the real exam objectives.
Emergency Medical Services (EMS) teams often arrive at the emergency department with patients whose demographics are incomplete or unknown—no medical record number (MRN), no confirmed name, and sometimes no date of birth. Yet EMS transportation notes still need to land in the correct chart.
To support safe and reliable documentation, EMS agencies, third-party integration services, and hospital integration teams build secure interfaces that exchange identifiers and clinical messages.
We have an HL7 feed that contains Lab Results. Each message contains a set of results, identified by a LabReportId. Some LabReportIds can get more than one message / set of results - these are updates, as new results become available, and must be processed in order. Results for different LabReportIds can be processed in any order.
JSON
Hello, how are you?
Using Healthshare for Interoperability, we often see a wide variety of encoding issues. Some happen when transforming XML to HL7. Some happen the other ay around transforming HL7 to XML.
Is there a valid way to understand which encoding needs to be used?
I ask, because we use SOAP or REST or TCP HL7 services.
And we deliver messages with TCP HL7, SOAP, HTTP Operations.
And we often face this issue where special characters like ñ or á, are not encoded correctly.
Thanks for your replies.
You’ve seen how tools like Lovable are shaking up web development. People are spinning up entire apps just by talking to an AI, almost like pair‑programming on steroids.
Now imagine bringing that same “vibe coding” experience into healthcare. know, it sounds crazy. Healthcare is complex, full of regulations, and usually gives us a headache just thinking about the interoperability rules.
Hello everyone. I'm currently working on how to implement a solution that makes it possible to include within the response of a BusinessOperation the "RetryCount" for each message.
For Example, we have this message that was retried twice:.png)
Hi,
I want to consume an API that provides HL7 messages. To achieve this, I have thought of the following workflow:
I have created a business service that periodically triggers a business process. The trigger request is forwarded to a business operation. There, a %Net.HttpRequest is assembled from scratch and then sent to the API endpoint. The corresponding HttpResponse then contains several HL7 messages encoded in UTF-8 in the message body.
What is a FHIR Profile?
Needs some help with FHIR return code 200 or 201 when processing HL7 messages in HealthConnect.
Issue:
1. If FHIR code is 200 or 201, HealthConnect keep processing HL7 messages
2. If FHIR code is NOT 200 or 201, HealthConnect keep suspend the HL7 messages in the messages queue, then keep processing NEXT subsequent HL7 messages in the TEXT file if the FHIR code is 200 or 201
3.
We are hiring! 100% Remote W2 Contract | 3-6+ Months (numerous extensions likely)
Two Roles:
🔹InterSystems Engineer
🔹Epic Bridges Certified/InterSystems Engineer
Having solid experience with the below:
Sometimes it is more convenient, more efficient, and more secure, to limit FHIR Searches per pre-defined "Lists" of Resources.
Since v2025.1 we support several List-related features in our FHIR Server.
I will highlight these here, and provide some samples.
Using a WSDL and the SOAP wizard I created a WebServiceClient, and Operation to send an encoded message to a Vendor. But the vendor is now sending back an HL7 in the SOAP response.
I tried updating the Operation to Extend EnsLib.HL7.Operation.ReplyStandard, but still use the EnsLib.SOAP.OutboundAdapter. When I did this it broke my Operation and would not compile with the following error...
I need to read first six characters from the filename we process in healthconnect, then need to insert these six characters in MSH-6 in the same HL7 message. (please note each file can have multiple HL7 messages with multiple MSH segments)
Is something can be done when first process the file, then insert first characters MSH-6?
Please advice if this is an easy fix.
Need to capture filename during BPL process, then set it to MSH-6 in the HL7 message.
Please advice, if this can be done.
Hey everyone.
As part of an ongoing mission to track down orphaned HL7 Messages in our integration engine, I have been digging into our environment to track down the causes.
Having looked at various posts here (including one of my own) there are a few scenarios that can create orphaned messages resulting in excessive disk space usage. These scenarios are generally:
Hello,
Are there any utilities/api in HealthConnect 2016.2.1 that will allow conversion of XML virtual document to Json format? We were thinking to convert HL7 ADT message to XML via Ensemble DTL and then send it to another BP to convert to Json format for transmission via Web Services. To my understanding there isn't anyway to represent Json as a virtual object so it can be use for direct mapping of HL7 2.x message to Json via Ensemble DTL.
Thanks
Yuriy
Could someone explain how and why a HL7 ACK be showing up as a Orphaned message when I run the following SQL...
SELECT HL7.ID,HL7.DocType,HL7.Envelope,HL7.Identifier,HL7.MessageTypeCategory,HL7.Name,HL7.OriginalDocId,HL7.ParentId, HL7.TimeCreated
FROM EnsLib_HL7.Message HL7
LEFT JOIN Ens.MessageHeader hdr
Overview
Fast Healthcare Interoperability Resources (FHIR) is a standardized framework developed by HL7 International to facilitate the exchange of healthcare data in a flexible, developer-friendly, and modern way.
Is there any way of saving a representation of the results of a query created in the Message Viewer to a file - most obviously CSV.
We are reasonably adept at creating queries. We'd like to be able to send the output to a file, rather than resorting to cut'n'pasting from the message viewer window...
Is this possible? (on any version of Ensemble/Iris?)
.png)
Desired output to file something like:
What is XML?
Have you ever tried to do a search in Message Viewer on a busy interface and had the query time out? This can become quite a problem as the amount of data increases. For context, the instance of Health Connect I am working with does roughly 155 million Message Headers per day with 21 day message retention. To try and help with search performance, we extended the built-in SearchTable with commonly used fields in hopes that indexing these fields would result in faster query times.
Hello,
I am currently facing the task of retrieving or sending HL7 messages from a web API. Since we only send HL7 messages via internal sockets, web APIs are relatively new to me.
The following is my plan for the new interface:
I have created a new custom business service that periodically sends requests to a business process. In this business process, the HTTP request (HTTP.GenericMessage) is then created from scratch. The special feature is the "Authorisation" header field, where a signature is inserted, which consists of a base64-encoded hash value.
To manage the accumulation of production data, InterSystems IRIS enables users to manage the database size by periodically purging the data. This purge can apply to messages, logs, business processes, and managed alerts.
Please check the documentation for more details on the settings of the purge task:
https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls?KEY=EGMG_purge#EGMG_purge_settings
For historic reasons we've got a mix of ADT feeds coming out of our PAS (TrakCare) to a wide range of downstream systems. In particular, there are some that are direct from TrakCare to the downstream systems, and many more that pass through Ensemble as our integration engine.
This is complicating management of the integrations, and so we'd like everything to go through the integration engine. In other words move from the flow in the top of the diagram to the flow in the bottom of the diagram: