My IRIS instance is connected to a Postgres database using SQL Gateway and linked tables. One of these tables is projected to the Patient class. I want to select a record from this table by ID and convert it to a FHIR resource using the %ExistsId and %OpenId methods. I noticed that if I call these two methods from the console, the record is always found. But, if I do the same from the FHIR Facade layer, the %OpenId method returns NULL.

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Copilot for Flask FHIR SQL Builder

Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ FHIR Object Model Classes in VS Code

I'm attempting to import all the FHIR XSD files provided by http://hl7.org/fhir but get the immediate and unhelpful error message:

I've tried different versions of EOLs to no avail. Any idea what this error could mean?

Here's the XSD I'm trying to import:

<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2011+, HL7, Inc
 All rights reserved.

I finally figured out how to get JWT token using set x = ##class(%SYS.OAuth2.Authorization).GetAccessTokenClient("medbank","openid fhirUser",.prop,.err).

I also found iris-fhir-client app on Open Exchange. I registered Epic sandbox server, but I cannot list resources. I suspect I need to integrate authorization / authentication. How do I do this with irisfhirclient py?

Working on a project where I'm needing to make FHIR calls from my HealthConnect Interop production to Epic. 

My issue is I'm not able to construct a valid JWT for the OAuth token retrieval that Epic will accept. I have the below code where I'm able to create a valid header and payload that I'm base64URL encoding and then trying to sign with my .pem private key file. However, Epic is not liking the signature portion of my JWT.

As such, I wanted to present my code to see if I'm performing the signature steps correctly? I've seen some posts where the %Net.

I need to create a JWT to connect to EPIC FHIRserver sandbox.

https://fhir.epic.com/Documentation?docId=oauth2&section=BackendOAuth2G…

You will generate a one-time use JSON Web Token (JWT) to authenticate your app to the authorization server and obtain an access token that can be used to authenticate your app's web service calls. There are several libraries for creating JWTs. See jwt.io for some examples.

The header and payload are then base64 URL encoded, combined with a period separating them, and cryptographically signed using the private key to generate a signature.

When building a bundle from legacy data, I (and others) wanted to be able to control whether or not the resources were generated with a FHIR Request Method of PUT instead of the hard coded POST.  I have extended the two classes responsible for transforming SDA to FHIR in an Interoperability Production to accomodate a setting that lets the user control the Request Method.

First is the Busines Process class.  This includes a new parameter exposed to the "Settings" tab in Interoperability called FHIRRequestMethod.

I'm playing with some anayltic queries against FHIR server tables. The HSFHIR_X0002_S_Patient.addressCity table contains a lot of cities which names contain german charachers such as ä, ö and ü.

The following query works fine:

select value from HSFHIR_X0002_S_Patient.addressCity

But this one converts city names to uppercase, and characters with umlauts are lost, so instead of "Köln" or "München" I see KOLN and MUNCHEN:

select ac.value, count(ac.value) as cnt
  from HSFHIR_X0002_S_Patient.addressCity ac
  group by ac.value
  order by 2 desc

I'm using DBeaver with IRIS official JDBC driver.

The InterSystems IRIS for Health v2024.3 is already available as a Developer Preview for some time, and I wanted to highlight new support related to FHIR Search that was introduced.

Hi,

I've successfully installed and configured the custom MESH API supplied by intersystems. I'm able to send HTML rendered documents directly to GP's using Kettering.xml. 

Ideally, I'd like to be able to send PDF/RTF files rather than HTML. Is this possible and if so can I still use Kettering xml? I know FHIR is the preferred method of transmission but i've tried sending a test FHIR message through MESH to EMIS but it's not displaying so I'm not sure if EMIS is able to display FHIR formatted messages. 

Thanks.

Anthony Breen

This demo program is used to show how a custom FHIR profile can be employed to validate data compliance. The custom FHIR implementation guide was developed based on FHIR Version R4, and in this example implements the Organization resource extension to validating data compliance.

Installation

1. Download the project via Git clone.
2. Execute docker-compose up -d to build and start the container, the initial execution will download required container images and executing the script will take another 5 to 10 minutes (depending on the machine).

Hi everyone,

I'm struggling with the extraction of information from the following XML:

<Bundle xmlns="http://hl7.org/fhir">
  <id value="b35061d2-7bf1-11ef-a57c-005056b65e2f"/>
  <type value="transaction-response"/>
  <timestamp value="2024-09-26T10:10:43Z"/>
  <entry>
    <resource>
      <Observation>
        <id value="2005"/>
        <meta>
          <versionId value="1"/>
          <lastUpdated value="2024-09-26T10:10:43Z"/>
        </meta>
        <status value="final"/>
        <code>
          <coding>
            <system value="urn:oid:2.16.840.1.113883.6.

Hi.

We are going to have basic patient demographic data coming in to Cache via a webservice. I thought that I should define the input as XML something like the FHIR format (with UK extensions).

In the past we've input XML streams and used the  %XML.Reader to convert them to matching classes successfully, so I thought it would be easy.

I am trying to use IRIS for Health as a Facade for an external FHIR Server, where IRIS provides the proper authentication. The client authenticates using a bearer token obtained from the IRIS OAuth2 server via a jwt client assertion. The IRIS endpoint, however, returns a 401 as soon as I remove the Unauthenticated access

Is there w way to make this work through configuration?

Hi folks!

Examining FHIR profile validation with InterSystems FHIR server. FHIR profiles is a very useful feature of FHIR standard that helps an organization or solution to establish constraints to a very disperse FHIR standards that are relevant to a particular business solution. Learn more on FHIR profiles.

I created a very simple FHIR profile with the following JSON:

{

"resourceType""StructureDefinition"

As you can see in "differential" section it makes mandatory fields of id, name and gender.

Anakin Skywalker challenged the high ground and has been terribly injured on Mustafar.  

I am still trying to understand and come up with a use case to use FHIR as an enhancement to our existing HL7 messages. Does anyone have an example of taking a FHIR response and transforming it into a SDA?

How does the workflow go? Does it go through 1 BP? 

Thanks

Scott

In the last article we presented the architecture of our SMART On FHIR project, so it's time to get down to business and start configuring all the elements that we are going to need.

We will first start with Auth0.

AUTH0 configuration

We will start by creating an Auth0 account with a valid email, once registered we will have to create our first application, and we will do it from the menu on the left:

In our example, the application will be of the Single Page Web Application type as it is an application developed in Angular 16. We select this option and click Create.

I am trying to create a HS.FHIR.DTL.vR4.Model.Resource.Encounter message based on a conversion of HS.FHIRServer.Interop.Response QuickStream to a JSON %Dynamic Object. 

When I try to send the HS.FHIR.DTL.vR4.Model.Resource.Encounter onto the Router

1. it is not showing up as a Defined Message Class to Route the message back to the SourceConfigName of the Request message that initialized the FHIR query
2. I keep getting "ERROR <Ens>ErrBPTerminated: Terminating BP EPIC.FHIR.Process # due to error: ERROR #5002: ObjectScript error: <SUBSCRIPT>%SaveData+29 ^Ens.MessageHeader.1 ^Ens.

I have this response, which is a FHIR location resource in a bundle. I would like to load the entry(0).resource into a context property defined as HS.FHIR.DTL.vR4.Model.Resource.Location so I can use it as a source in a DTL.  Any help would be greatly appreciated.  Thanks. 

{"entry":[{"fullUrl":"https://dev-api.hosp.org/idkl/fhir/r4/v1/Location/ATH-1375-PRV-a-1375.D…","resource":{"extension":[{"url":"https://api.hosp.org/idkl/extensions/StructureDefinition/is-messaging-e…","valueBoolean":true}],"id":"ATH-1375-PRV-a-1375.

I have challenged to create a bot application using Azure Bot that can retrieve and post data to IRIS for Health.

A patient's data has already been registered in the FHIR repository of IRIS for Health.

The patient's MRN is 1001. His name is Taro Yamada. (in Japanese :山田 太郎)

This bot can post new pulse oximeter readings as an observation resource linked to the patient.

I was looking for an easier way to build the FHIR Query String, given the Record Map request that is passed into the DTL.

I built this Function, but when I run a message through it, my Query String that is passed back into the DTL is a Reference Pointer and not the String I am looking for.

Hi all,

what is the best practices to prevent the creation of 2 identical resources in FHIR ?

I'm trying to complete Inferno Service Base URL test for FHIR endpoint and I thought it wanted host.com/fhir/r4/.well-known/smart-configuration but I get header error below. Am I using the wrong Service Base URL List or am I missing something? I'm running 2021.2 HealthShare

ERROR <HSFHIRErr>InvalidAcceptSpec: No valid Accept data found (Accept header or _format parameter)

As I begin our adventure into using an External FHIR Repository, I wanted to see what opinions people have about a design Idea I was working on. 

I want to create a way that my Team has the ability to send a Message Type, and the system knows from that Message Type which FHIR queries to execute and return the Response back to the user, sort of like a FHIR Query Hub. Does this sound reasonable?

Does anyone have an example of extracting the Resource from a FHIR Bundle?

{

"resourceType""Bundle"

I am working on a Proof of Concept to read data from our EMR FHIR Repository and was able to do it with a Response type of patient, but I am not sure how a Response Type of Bundle works.

Thanks

Scott

Since my initial question on ordering json properties a few things have happened.

Let me recap the issue at hand:

• In the FHIR specification, properties are listed in a certain order, for example, see https://www.hl7.org/fhir/patient.html#resource
• When you serialize resources to XML, the resulting document elements are ordered as defined in the specification.
• On the other hand, json objects returned from the IRIS for Health FHIR Repository will for example normally have the "id" as the last property, given that new properties are appended.

Hello Community,

I'm unable see the FHIR SQL builder /csp/fhirsql and /csp/fhirsql/api/ui endpoints in web application to access the FHIR SQL builder. I'm using community edition 2024.1 and it contains the "FHIR SQL Builder".

I'm running into an intermittent issue with some of our Custom Operations/Processes as a result of some large FHIR R4 Binaries. Essentially we get a response from an AthenaHealth FHIR endpoint that appears to be too large to be processed using the IRIS Built In Functions for FHIR:
I've replicated it on the command line here using a file (binary.json) that has the response from the FHIR Endpoint. Not sharing full contents due to PHI concerns.

HSCUSTOM>S file=##class(%Stream.FileCharacter).%New()

HSCUSTOM>Do file.LinkToFile("/data/binary.json")

HSCUSTOM>w file.Size
4033045

HSCUSTOM>Set FhirBinary = ##class(HS.FHIR.DTL.vR4.Model.Resource.Binary).%New()

HSCUSTOM 2d1>Do FhirBinary.FromJSON(file,"vR4")

<MAXSTRING>%GetNext+12^%Iterator.Object.1