Article
Iryna Mykhailova · Nov 29 6m read
What's HL7v2?!

HL7 (Health Level 7) is a set of technical specifications for computerized exchanges of clinical, financial and administrative data between hospital information systems (HIS). These specifications are variously integrated into the corpus of formal American (ANSI) and international (ISO) standards.

The L7 of HL7 indicates that it is a standard that operates at layer 7, in other words at the application layer, of the OSI model. This means that HL7 does not have to take into account exchange security considerations, or those of message transport (this being ensured by lower-level layers such as SSL/TLS for security or TCP for the transport of data for example). To be more precise, layer 7 supports communications for end-user processes and applications and the presentation of data for user-facing software applications. As the highest layer of the OSI model, and the closest to the end user, layer 7 provides application-specific functions such as identifying communication partners and the quality of service between them, determining resource availability, considering privacy and user authentication, and synchronizing communication, as well as connecting the application to the lower levels of the OSI model.

Returning to the HL7 standard, the HL7 version 2 standard (also known as Pipehat) was originally created in 1989 but is still being used and updated regularly, resulting in versions 2.1, 2.2, 2.3, 2.3.1, 2.4, 2.5, 2.5.1, 2.6, 2.7, 2.7.1, 2.8, 2.8.1, 2.8.2 and 2.9. The v2.x standards are backward compatible (e.g., a message based on version 2.3 will be understood by an application that supports version 2.6) and in higher versions, you will see some fields are left just for it.

Despite it being more than 30 years old, HL7v2 remains the most widely used healthcare interface standard by a large margin according to the HL7.org portal that tells that:

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In the previous article, we've discussed the origin of the standard HL7v2, the structure and the types of messages. Let's now look at one of the most used types of messages and an example of its structure. I'm talking about ADT.

HL7 ADT messages (Admit, Discharge, Transfer) are used to communicate basic patient information, visit information and patient state at a healthcare facility. ADT messages are one of the most widely-used and high volume HL7 message types, as it provides information for many trigger events including patient admissions, registrations, cancellations, updates, discharges, patient data merges, etc.

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InterSystems announces another developer preview release, as part of the developer preview program for the 2022.3. Many updates and enhancements have been added in 2022.3 and there are also brand new capabilities, such as the new FHIR SQL Builder, improvements for Columnar Storage, and support to Oracle Linux 9. Some of these features or improvements may not be available in this current developer preview.

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Hi Community,

Let's meet together at the online meetup with the winners of the InterSystems IRIS for Health Contest – a great opportunity to have a discussion with the InterSystems Experts team as well as our contestants.

Winners' demo included!

Date & Time: Friday, December 9, 10:00 AM EDT

>> Register here <<

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Hi,

For a Linux host, has anyone developed an Ansible module that will start a session to IRIS and send commands?

What I am after is something like this:

1. Supply

Username

Password

Commands <- list

Prompt <- from session command

2. Send back the output from the session

If so please advise where I can download the module?

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Hi Developers!

Here is the score of technical bonuses for participants' applications in the InterSystems IRIS for Health Contest: FHIR for Women's Health!

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Hi, I would like to tell you how easy it is to spin up IRIS for Health docker container in compute engine(VPS) in google cloud.

I know that to run IRIS for Health in AWS is pretty simple and straightforward, but I wanted to tried if its same easy in GCP environment.

Create vm instance. 2GB RAM is more than enough.

I used Debian 11 as Linux distro.

Standart persistent disk is cheaper.

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Article
Oliver Wilms · Dec 1 1m read
My First FHIR app

I participated in InterSystems Women’s Health FHIR contest, because I loved the challenge to learn a new-to-me technology. I wanted to develop an app that receives data from a mobile device like my Fitbit or a Smart Watch. I did not get access to such data except when I downloaded a spreadsheet (CSV file) showing my daily steps and sleep data. I saw in iris-fhir-template it imported some patient data to a FHIR server.

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IRISTEMP - IRIS.DAT took up all the available disk space of almost 2 TB that leads to Production instance down.

After RCA the suspected cause was some SQL query but not confirmed as query result was received within a minute.

Currently we are monitoring the IRIS.DAT and it is continuously increasing and currently we set the MAX size for this DB, but not sure what will happen once it hit the MAX SIZE ?

Any clue why the IRISTEMP DB is not flushing the data from IRIS.DAT as i believe it is being mostly used for system processes and is in increasing trend at ~ 1GB/day?

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Article
Yuri Marx · Nov 30 14m read
Creating FHIR questionnaires

Intersystems IRIS for Health has excellent support for the FHIR industry standard. The main features are:
1. FHIR Server
2. FHIR Database
3. REST and ObjectScript API for CRUD operations on FHIR resources (patient, questionnaire, vaccines, etc.)

This article demonstrates how to use each of these features, as well as presenting an angular frontend for creating and viewing Quiz-like FHIR resources.

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I've been working for 19 years in the technology field, and on this journey, I was able to be part of several projects on numerous fronts; however, the health area is one of the areas that attract me the most.

So whenever we get a chance to create something focused on health, using the FHIR protocol is exciting.

But, a team of 3 IT guys with a tech background would not be enough to deliver something really useful, and for a topic as important as women's health, we brought to the team someone who really understands the subject.

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In our current UCR arhcitecture, we use two installations. We have one machine with Access, Registry and Edges and one machine with the ODS. On the machine with the Registry, I can create a user/clinician. When I log into the management portal with this user, a so-called delegated user is created in the cached users table. So far everything is going well.

When I try the same on the machine with the ODS I get the message : 'ERROR #822: Access Denied' . so no delegated user is created.... Does anyone have any idea where I can find the solution?

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Brainstorming the project we would build to showcase in the current female health themed InterSystems FHIR Contest, our girl band decided that we need to do something practical for the ordinary user and to solve some burning issues of the modern life. This discussion led to the idea of creating a project that will help women not to forget their health in daily grind - FemTech Reminder.

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Hello everyone, this is with great pleasure that I announce the V2 of my application 'Contest-FHIR'.

In this new version, I used new tools and techniques I discovered at the EUROPEAN HEALTHCARE HACKATHON in which I was invited by InterSystems as a guest and as a mentor to display the multiple projects I did in my intership back in April 2022.

Today I present to you the V2 of my application, it can now transform CSV to FHIR to SQL to JUPYTER notebook.

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Hello everyone, I’m a French student in academical exchange for my fifth year of engineering school and here is my participation in the FHIR for Women's Health contest.

This project is supposed to be seen as the backend of a bigger application. It can be plugged into a Front End app and help you gather information from your patients. It will read your data in local and use a Data Transformation to make it into a FHIR object before sending it to the included local FHIR server.

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InterSystems is proud to announce another developer preview release, as part of the developer preview program for the 2022.3. Many updates and enhancements have been added in 2022.3 and there are also brand new capabilities, such as the new FHIR SQL Builder, improvements for Columnar Storage, and support to Oracle Linux 9 (not in this preview yet).

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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 Developers,

We're pleased to announce that InterSystems is hosting its partner days in Germany – InterSystems Partnertage DACH 2022!

During this time you will be able to exchange product innovations and practical tips and tricks between InterSystems experts and your colleagues in Darmstadt. And of course, a lot of networking, because there is a lot to catch up on!

🗓 Dates: November 23-24, 2022

📍 Venue: Wissenschafts- und Kongresszentrum darmstadtium in Herzen Darmstadts
Schloßgraben 1, 64283 Darmstadt

The agenda of the two-day partner days consists of a mix of keynotes, informative sessions, and masterclasses. Read on for more details.

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Hi Developers!

Here're the technology bonuses for the InterSystems Women’s Health FHIR Contest 2022 that will give you extra points in the voting:

  • Women’s Health Topic
  • Women’s Health Dataset
  • IRIS For Health FHIR or FHIR Cloud Server Usage
  • Healthcare Interoperability
  • Embedded Python usage
  • Docker container usage
  • ZPM Package Deployment
  • Online Demo
  • Code Quality pass
  • Article on Developer Community
  • The second article on Developer Community
  • Video on YouTube
  • First Time Contribution

See the details below.<--break->

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