#FHIR

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

Hi folks!

Playing with InterSystems FHIR server. 

You can easily install it in IRIS for Health using FHIR template:

zpm "install fhir-server"

NB! For now the IPM command mentioned above works for a namespace called FHIRSERVER only.

I have a FHIR server in a local docker container with endpoint:

localhost:52773/fhir/r4

Working on implementation FHIR to my project, I found interesting project HAPI-FHIR, which could help me to quickly launch my FHIR api server with InterSystems Caché as a storage, because this projects uses Hibernate to connect to database, as an example they use DerbyDB. I tried to change settings to use InterSystems Caché, but unfortunately it does not work and throw some errors inside HIbernate. As I found in Caché documentation, I have not some many options, I just have to set Cache dialect, and set database url.  This projects uses Hibernate 5.

Looking at the DTL, we can pretty much understand what the provided mapping from FHIR to SDA3.

But, is there any Intersystems document, where the mapping To/From FHIR is documented, at least FHIR to SDA3 ?

Can you connect to FHIR through ensemble or do you have to have HealthShare to connect to FHIR services?

Hi,

I've been trying to create a patient using FHIR, but all I seem to get back is:

{"resourceType":"OperationOutcome","issue":[{"severity":"error","code":"invalid","details":{"text":"FHIR create interaction invalid for this end point"},"diagnostics":"FHIR create interaction invalid for this end point"}]}

I've tried a variety of requests and read operations work, but create doesn't seem to. Has anyone run into this? Any ideas? Thanks.

Hello Community,

I'm a beginner and currently working on a project to convert CCDA files to FHIR using InterSystems IRIS. I have developed a web form to upload CCDA files, and I'm attempting to convert the uploaded CCDA files to FHIR. However, I am encountering an issue where the conversion process results in an empty entry.
Here's the Output it displays on HTML page:

Size of CCDA Stream: 74152
vR4
{"resourceType":"Bundle","type":"transaction","entry":[]}

Here is my code: CCDtoFHIR.csp

<!

I am making a FHIR request against Epic, in when I get the Response back using "fromDao" I am extracting the stream into HS.FHIRModel.R4.Patient. However, the patient's name comes back as name within a list that references HS.FHIRModel.R4.SeqOfHumanName.

• How do I extract the name from HS.FHIRModel.R4.SeqOfHumanName?
• Do I have to then do another "fromDao" to pull the list into string format?
• How do I navigate around the lists that are in a FHIRModel response, to extract the string values?

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",

"url": "http://example.org/fhir/StructureDefinition/TutorialPatient",

"name": "TutorialPatient",

"status": "draft",

"fhirVersion": "4.0.

I'm working on FHIR project and using this code to convert an incoming request to FHIR 

Method OnRequest(request As HS.FHIRServer.Interop.Request, Output response As HS.FHIRServer.Interop.Response) As %Status

{

    #dim tSC As %Status = $$$OK

    Try {

        // Process incoming request

        set stream = ##class(HS.SDA3.QuickStream).%OpenId(request.QuickStreamId)

        set bundle = ##class(HS.FHIR.DTL.vR4.Model.Resource.Bundle).

Hi community,

I am looking for an implementation strategy to create/update organizations in a local ISC based FHIR server. Thoase organizations do have a certain dependancy to one another. For Organization resources the "partOf" property symbolizes that. It is planned, that a Interoperability Production (supporting FHIR Server) receives a bundle which contains a batch export of all organizations of a customer (Hospital). The task is to bring those data into the FHIR server create and/or update organization.

I was looking at conditional create/update since there a two major challanges.

Hello All,

   Having a recent project to create a FHIR repository, I want to know (as looking at the code) if HealthShare FHIR implementaton supports subscriptions?.  I know it records the subscriptions ok, BUT does it handle sending the subscription out (based on the tags) to an endpoint (i.e. when a new FHIR request commits data that would trigger the subscription) ?, I'm 50% it doesn't, but would rather find out for sure before shoe horning something in.

   Regards

I'm attempting to build a fairly complicated object graph, with nested objects and collections, in order to create a FHIR bundle.

In its most basic form there is a <bundle></bundle> element that represents the root, and there can be a number of nested <entry></entry> child elements.

I'm attempting to represent this as such:

class Bundle (%RegisteredObject, %XML.Adaptor)
{
    Property Entries As List Of Entry;
}

The problem is when this is projected it nests each Entry object within an Entries container, which makes sense but I don't want this.

In article

https://community.intersystems.com/print/518106

Traceback (most recent call last):
  File "c:\Users\rochesterd\PythonScripts\fhir_stuff\fhir-client-python-main\fhir-client-python-main\src\client.py", line 57, in <module>
    patient0 = Patient.parse_obj(patients_resources.search(
AttributeError: 'NoneType' object has no attribute 'serialize'

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".

Hello Community,

I've created my FHIR patient profile and POST into FHIR endpoint in Intersystems FHIR Server.

http:localhost:52773/fhirr4/StructureDefinition

 I use the profile url into my Patient resource without the meet the profile requirements.

http:localhost:52773/fhirr4/Paient

The resource is stored successfully in the FHIR Server instead of a FHIR exception.

Why the resource doesn't validate with the mentioned profile?

Is this profile validation is really a intersystems FHIR server job or the validation implementation is available now  ?

Hi, 

We have a PAS that accepts HL7v2 QBP^Q21 requests, and returns patient details in an RSP^K21.

We have a clinical system that wants to sent an http GET request of the form http://server/getpatientbyid?pid=M1234567

So I think I need to convert the query url into a QBP^Q21 (HL7) message, then take the response in HL7v2, convert to SDA, convert to FHIR, and put that in the response to the  original GET.

Does anyone have any experience doing this? is there an approach you would recomend?

Hi guys,

I am looking for a way to search for FHIR Encounter resources from an InterSystems FHIR server where there period.start is before or after a certain time. I can´t get my head around which would be a correct way to do this since docs and FHIR spec is not clear to me which fields can be used for searching with wich prefixes.

In my local InterSystems FHIR server I have a set of Encounter ressources, each set with a period.start and (possibly) a period.end. I´d like to retrieve all Encounters with a start date time prior to a given datetime. I did a little testing with URL parameters.

Hi folks!

Researching FHIR bundle transactions.

The idea is that you can post a bundle to a FHIR server with a set of resources. And you can send it as a transaction, so only all the resources will be published or neither.

E.g. I send a bundle of two resources: patient and its observation.

The observation resource should reference an existing patient. But it probably doesn't exist yet on the server and goes within the same bundle. 

For this purpose there is a way to have a temporary id in the bundle, to let resources reference ids.

Hi,

Here are the requirements for implementing a new project using FHIR and JSON.

The FHIR JSON resource types - Patient, Encounter, etc. - need to be converted to HL7 messages using DTL.

Does %JSONImport() allow direct conversion of JSON into HS.SDA3.Patient objects?

Could anyone suggest an easy way to convert FHIR objects for DTL use?

Hi, 

I am trying to configure OAuth2 server to connect to Cerner Auth server to get FHIR API access token but I am getting the error "Discovery response not valid".

I can get the access token back okay from Cerner endpoint used in the OAuth configuration below via Postman and Manually sending the request via HTTP Operation from HealthShare, so the URLs I am using looks correct but the OAuth configuration is not working.   

Not sure if this is issue from Cerner side or HealthShare side. I tried enabling debugging but nothing useful.  

I have received 2 errors while publishing Patient data to repository. Message viewer displays like below and the Application log found  bold content.

Could you please help me on this to resolve the errors.

An error occurred with the web application.
It has been logged to system error log (System Operation>System Logs>Application Error Log).

"<METHOD DOES NOT EXIST>OnPage+42^EnsPortal.MessageContents.1 *%Id,HS.FHIRServer.API.Data.Request : CSP Error"

Business Operation Event logs displays "ERROR <Ens>ErrRequestNotHandled: Request message '3@HS.FHIRServer.API.Data.

I am receiving a FHIR response bundle back with a resource of patient. Using fromDao, I attempted to take the stream and put it into FHIRModel.R4.Patient but it is not mapping correctly. When I attempt to take FHIRModel.R4.Patient and write it out using toString(), all I am seeing is the resource

{"resourceType":"Patient"}

so the response is not mapping correctly to FHIRModel.R4.Patient. How have others handled this? Do I need to translate it to an SDA since it does fit the model format?

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.

Hi,

We are setting up FHIR SQL builder analysis set up in cloud but it is refused the connection. Could anyone please help to share your idea to resolve the issue. Why it is throwing connection refused. Any configuration missing?

Thanks,

Hi,

What is the best practice when adding FHIR extension to Patient resource? To not to lose it when updating Patient base class etc.

Krystian

I am attempting to POST a Bundle containing a resource to an ISC-based Resource Repository. Documentation says "batch" interaction is fully supported - so I assume this is possible.

I post to the FHIR base URL, but I get the following back: " The requested URL /customfhir/r4 was not found on this server."

The bundle I use to post to create a patient resource is very simple (see below). I am using a request.method of POST because I want the Resource Repo to create a new fhir resource id.

I'm using Postman to generate the request.

Hi, what is the easiest way to clear all the tables which store FHIR data? The most straitforward approach is to get a list of tables using the information_schema.tables view, then execute dynamic SQL with the "delete from" clause, but perhaps some helper class has already been written for this purpose?

Hoping someone can help,

I have the "Sample FHIR Production" installed ( as described in the documentation) with the following Components:

Service: HS.Gateway.ECR.SDA3XMLFileService

Processes: HS.FHIR.FromSDA.DTL.Transaction.Process

Operations: HS.FHIR.Repository.Operations

When a patient's data gets updated in my application a new SDA3 message is generated and processed by the FromSDA DTL. The Repository Stores that data as a New patient ( i.e. when I query the Repo they have different IDs "resource":{ "resourceType":"Patient", "id":"4", ) .