hg:V1 FHIR ELZ: verschil tussen versies

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Versie van 1 dec 2022 13:43

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This FHIR IG is currently under development and can not be considered stable and ready for use. For questions and change requests regarding this IG, please create a ticket in BITS.



1 Introduction

This is the implementation guide for ELZ (Dutch: EersteLijnsZorg, English: Primary Care). This functional specification can be found here and is implemented using HL7 FHIR R4. This implementation guide assumes that the reader is familiar with both the functional specification and the FHIR standard.

Apart from this document, the guidelines as specified in the general FHIR Implementation Guide apply.

2 Workflow and message structure

2.1 Overview

The use cases described in this IG are limited in sense of workflow: events are handled on a per use case basis where the sender does not explicitly requests a response (e.g. a status update). Future insights might require more workflow and it is conceivable that the FHIR Task resource will be used to fulfill that. At this point in time, the ServiceRequest and Composition resources are sufficient for the use cases described in this IG. In a later stage, more (mostly zib based) resource profiles will be added for the transfer of the medical record.

2.2 ServiceRequest

A ServiceRequest resource is used to represent a (request for) referral. The requirements for the ServiceRequest resource in the context of this information standard are specified using the http://nictiz.nl/fhir/StructureDefinition/hg-ReferralServiceRequest profile. This profile SHALL be used in referral use cases.

Each referral SHALL be captured by a dedicated ServiceRequest. When a referral is sent to multiple parties, each party receives its own unique ServiceRequest. Revoking referrals after a certain period of time based on whether action is taken or not is out of scope of this information standard.

2.3 Composition

A Composition resource is used to capture relevant data that supports the referral, for instance the reason for referral or guidance noted down by the general practitioner. The requirements for the Composition resource in the context of this information standard are specified using the http://nictiz.nl/fhir/StructureDefinition/hg-ReferralComposition profile. This profile SHALL be used in referral use cases.

2.3.1 Handling free text concepts

Some concepts in the data set are of data type string, as some of the relevant data is entered manually by the referrer in the context of a specific referral. This data is often not represented as a persistent object in EHRs but more likely stored as a form or a questionnaire entry. In order to send this data within the Composition, the extension http://nictiz.nl/fhir/StructureDefinition/ext-TextValue is used on Composition.section, accompanied by a distinctive code on Composition.section.code.

Example:

<Composition>
...
<section>
    <extension url="http://nictiz.nl/fhir/StructureDefinition/ext-TextValue">
        <valueString value="paracetamol indien nodig"/>
    </extension>
    <title value="Ingestelde behandeling"/>
    <code>
        <coding>
            <system value="http://snomed.info/sct"/>
            <code value="108631000146107"/>
            <display value="behandeling lopende (situatie)"/>
        </coding>
    </code>
    <text>
        <status value="extensions"/>
        <div xmlns="http://www.w3.org/1999/xhtml">Ingestelde behandeling: paracetamol indien nodig</div>
    </text>
</section>
...
</Composition>

3 Use cases

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Currently this IG only covers the #Use_case:_Referral_from_general_practitioner_to_paramedic and specifically just the referral and not the transfer of relevant medical record entries. As development moves on, more use cases will be added.

3.1 Use case: Referral from general practitioner to paramedic

This is the technical counterpart of Ontwerp_Huisartsenzorg#Usecase:_Huisarts_verwijst_naar_paramedicus as described in the functional design.

3.1.1 Introduction

TODO

3.1.2 Actors involved

Actors Systems FHIR CapabilityStatements
Name Description Name Description Name Description
General practitioner The user of a HIS HIS General practitioner information system n/a n/a
Paramedic The user of a PARIS PARIS Paramedic information system n/a n/a

4 FHIR profiles

Profile name FHIR Resource Canonical URL
hg-ReferralServiceRequest ServiceRequest http://nictiz.nl/fhir/StructureDefinition/hg-ReferralServiceRequest
hg-ReferralComposition Composition http://nictiz.nl/fhir/StructureDefinition/hg-ReferralComposition

5 Release notes

Release notes can be found on the functional design page.