Summary

InterSystems FHIR Client to connect any open FHIR Server and get resources information either by terminal or by using CSP Web application. Application is using functionality of embedded python by using fhirpy (FHIR client for python Library)

Application Layout

Online Demo

https://irisfhirclient.demo.community.intersystems.com/csp/fhirclient/index.csp by using SuperUser | SYS

Video on YouTube

https://youtu.be/xaRoIcuDD_M

Features

• Registered any Open FHIR Servers
• List Down Server Details and Connect to any FHIR Server
• InterSystem FHIR Accelerator Service and SmartHealthIT Open FHIR Server are registered by default and ready to use
• Get Resources information by providing resource from active server
• Get Resources for particular patient from the FHIR Servers
• Search in Patient Resource
• Create Patient Resource
• Create Patient Observation Resource
• View FHIR Server information from CSP Web application

Recommendation

• Read related documentations HL7 FHIR
• Python FHIR Client fhirpy

How to Run

To start coding with this repo, you do the following:

1. Clone/git pull the repo into any local directory

git clone https://github.com/mwaseem75/iris-fhir-client.git

2. Open the terminal in this directory and run:

docker-compose build

3. Run the IRIS container with your project:

docker-compose up -d

Installation with ZPM

zpm "install iris-fhir-client"

Repo Contents

• Dockerfile, docker-compose.yml, and module.xml files
• iris.script, contains script to execute during container initialization
• /src with source files of classes and CSP application
• /python with python source files
• /.vscode/settings.json for automatic server connections when opened in VS Code.

Requirements:

• Docker desktop
• Get the latest InterSystems IRIS for Health image for use in the Dockerfile: https://hub.docker.com/_/intersystems-iris-for-health

Getting Started

Registered FHIR Servers

Connect to IRIS Terminal

docker-compose exec iris iris session iris

To list down registered server use ServerList() of dc.FhirClient class

do ##class(dc.FhirClient).ServerList()

To Register New Server use RegisterServer() function of dc.FhirClient class

class(dc.FhirClient).RegsterServer("Server Name","Endpoint","ApiKey"[optional],"EndpointOAuth"[optional]

To Register New Server use RegisterServer class method

do ##class(dc.FhirClient).RegisterServer("INTERSYSTEMS FHIR Server","http://localhost:52773/csp/healthshare/samples/fhir/r4/"," "," ")

To Activate server, call below method by passing server ID

do ##class(dc.FhirClient).SetFhirServer(2)

Get Resources from the FHIR Servers

To Retrieve all the resouces for the current server use ListResources() method of dc.FhirClient class

do ##class(dc.FhirClient).ListResources()

In order to display number of recordes of any resources use CountResource() method by passing Resource of dc.FhirClient

Below command will get counter of Patient Resource against active FHIR Server

set count = ##class(dc.FhirClient).CountResource("Patient")
write count

To Retrieve all the created Resources along with their count just pass 1 to ListResource() function

do ##class(dc.FhirClient).ListResources(1)

Get Resources information by providing resource from active server

To get details of the resource use GetResource() by passing Resource of dc.FhirClient class

Currently list of following resources is available

• Patient
• Observation
• Procedure
• Immunization
• Encounter
• Organization
• Condition
• Practitioner

Below command will retrieve all the Patients from the active FHIR Server

do ##class(dc.FhirClient).GetResource("Patient")

Below command will retrieve all the Observations from the active FHIR Server

do ##class(dc.FhirClient).GetResource("Observation")

Get Resources for particular patient from the FHIR Servers

Currently list of following resources against the patient is available

• Observation
• Procedure
• Immunization
• Encounter
• Organization
• Condition
• Practitioner

  Below command will retrieve Observations detail against Patinet ID 1 from the active FHIR Server

  do ##class(dc.FhirClient).GetPatientResources("Observation","1")

  

Below command will retrieve detail of Encounters against Patinet ID 1 from the active FHIR Server

do ##class(dc.FhirClient).GetPatientResources("Encounter","1")

Search in Patient Resource

Patient Resource search parameter detaisl can be found here Below command will search agaisnt Patient Id 2395

do ##class(dc.FhirClient).GetResource("Patient","_id","2395")

Below command will search Patient given Name and family Name contaning "Don"

do ##class(dc.FhirClient).GetResource("Patient","name","Don")

Below command will search all the male patients

do ##class(dc.FhirClient).GetResource("Patient","gender","male")

Create Patient Resource

below CreatePatient() function of dc.FhirClient can be use to Create Patient Resource

ClassMethod CreatePatient(givenName As %String, familyName As %String, birthDate As %String,gender As %String)

function requires giveName,failyName,birthDate and gender to create Patient Resource

below command will create Patient

do ##class(dc.FhirClient).CreatePatient("PatientGN","PatientFN","2000-06-01","male")

Let's search the newly created resource by it's name

do ##class(dc.FhirClient).CreatePatient("PatientGN","PatientFN","2000-06-01","male)

Patient ID 8111 is created

Create Patient Observation Resource

Let us create Observation against our newly created Patient Resource

below CreateObservatoin() function of dc.FhirClient can be use to Create Patient Observatoins

ClassMethod CreateObservation(patientId As %String, loincCode As %String, ObrCategory As %String, ObrValue As %Integer, ObrUOM As %String, effectiveDate As %String)

Parametres

• patientId is the Id of Patient
• LioncCode is Lionc Code, Detail can be found here
• ObrCategory is Observation Category, Detail can be found here
• ObrValue is Observatoin Value
• ObrUOM is Observation Unit
• EffectiveDate

below command will create Patient Vital Sign Observation

do ##class(dc.FhirClient).CreateObservation("8111","8310-5","vital-signs",96.8,"degF","2022-01-22")

Let's List down patient observations

do ##class(dc.FhirClient).GetPatientResources("Observation","8111")

Observation ID 8114 is created

View FHIR Server information from CSP Web application

Navigate to http://localhost:55037/csp/fhirclient/index.csp

Index Page will show active server Patients,Observations,Practitioners and Encounters count along with Patient and Registered Servers details

Index page will display FHIR Server List with active server selected. Select other server from the list to view details of selected server

Hover to Patient ID and select to get details of Patient Resources

This page will display count of some of Patient Resources along with Patient Observations details

Other information

Template used in web application is from Bootstrap 4 Admin Dashboard and it is free to use to develop non-commercial applications.

Thanks