#FHIR

Introduction

Earlier this year, I set about creating kit to introduce young techy folk at a Health Tech hackathon to using InterSystems IRIS for health, particularly focusing on using FHIR and vector search.

I wanted to publish this to the developer community because the tutorials included in the kit make a great introduction to using FHIR and to building a basic RAG system in IRIS. Its an all inclusive set of tutorials to show in detail how to:

Hi, now I would like to continuous on the topic that we talk about previously

Using Postman for testing the OAuth2.0 of the InterSystems FHIR repository - Part1

Question 1: Where is my client_id and client_secret come form?

Short answer: Authentication Server.

10:47 AM — Jose Garcia's creatinine test results arrive at the hospital FHIR server.
2.1 mg/dL — a 35% increase from last month.

What happens next?

• Most systems: ❌ The result sits in a queue until a clinician reviews it manually — hours or days later.
• This system: 👍 An AI agent evaluates the trend, consults clinical guidelines, and generates evidence-based recommendations — in seconds, automatically.

No chatbot. No manual prompts. No black-box reasoning.

This is event-driven clinical decision support with full explainability:

✅ Triggered automatically by FHIR events
✅ Multi-agent reasoning (context, guidelines, recommendations)
✅ Complete audit trail in SQL (every decision, every evidence source)
✅ FHIR-native outputs (DiagnosticReport published to server)

Built with:
- InterSystems IRIS for Health — Orchestration, FHIR, persistence, vector search
- CrewAI — Multi-agent framework for structured reasoning

You'll learn: 🖋️ How to orchestrate agentic AI workflows within production-grade interoperability systems — and why explainability matters more than accuracy alone.

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Developing on FHIR in 2025 @ Ready 2025

https://www.youtube.com/embed/rmLd7NH6AbY
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I have been struggling sometime with trying to take a FHIR Bundle Response, extract the "entry.resourceType", extract the MRN and Name from the Patient FHIR Response...

Going through learning.intersystems.com, it suggested that I try using fhirPathAPI to parse and search my response for certain values, however I am not sure my syntax is correct. Using the AI code, it suggested to set my tree = "Bundle.entry.resource.resourceType"

I'm new to HealthShare. I've installed a demo using the HS.Util.Installer helper, now I'm playing with its FHIR Gateway (which is the HSFHIR namespace). When I try to create a new resource of type Patient using HTTP POST, HealthShare responses with

As I am iterating through the FHIR JSON Response from a Patient Search, I am running into an issue where the extracted values are not being popualted into the Response object that I have created. If I do a $$$LOGINFO on them they will show up in the Object log, however if I try the following for example I get an error.

Hi,
Our production FHIR server is populated by several processes from several sources,
some of those sources send test data or wrong data (by mistake or as part of an integration test),
the data is consumed by our BI every 15 minutes.
when I mark a resource as test (using meta security) BI knows to update it on their system.
everything is fine up to here (except that there is test data in Prod)
my problem is that if someone send the same patient again it will recreate the patient without the security tag.
any thoughts?

You send an HTTP request and get back an HTTP error but with an HTML error page which you didn't expect... what's happening?... 🤔

Specifically for example, perhaps you tried to READ a FHIR Resource (e.g. /Patient/123) and you get back a 404 error page, even though with other Patient IDs, you get back the Resource payload, so "the page" definitely does exist... why should you be getting a 404 error page? 🙄

An extension “extends” or enhances a FHIR resource or a data element in a custom way. The extension can be added to the root of a resource, such as “Patient.ethnicity” in US Core profile, and they can be added to individual elements such as HumanName, Address or Identifier.

Did you know that you can also add an extension to a primitive data type?

Primitives usually store a single item and are the most basic element in FHIR. For example: "Keren", false, 1234, 12/08/2024 etc.

For example, the patient resources might look like this:

In today’s healthcare data landscape, FHIR has become the standard for structured clinical data exchange. However, while FHIR excels at interoperability, its JSON format makes analytics challenging—including FHIR QuestionnaireResponse.

Hey Community,

We're happy to invite you to a LinkedIn Live session in Dutch

🎤 Data exchange in healthcare according to the FHIR standard with Python 🎤

Event details:
📅 Date: Thursday, November 27th
🕓 Time: 1:30-2:15 PM EST

I have a quite complex FHIR Implementation Guide (IG) which is based on several other FHIR IGs. It's likely the versions of IGs conflict with each other.

From what I understand, I would need to load in all the other FHIR IG's first?

I don't actually need FHIR profiles to be in our FHIR Repository - I'm just after terminology and the examples for our test system.

Is it possible to load a FHIR IG just as data? (I think I mean here, ignore the FHIR profiles and dependencies between them)