FHIR Messages

Rene Spronk recorded this video on the v2/FHIR messaging at the recent FHIR connectathon.


About David Hay
I'm an independent contractor working with companies like Orion Health, HL7 Fellow, Chair emeritus of HL7 New Zealand and a co-chair of the FHIR Management Group. I have a keen interest in health IT, especially health interoperability with HL7 and the new FHIR standard.

2 Responses to FHIR Messages

  1. SK says:

    I recently looking at FHIR DSTU2 to create messages to be sent to my App. It seems to be a bit flexible to construct the messages and I am not able to find good reference to finalize my messages schema.
    I wish to send a set of Medication Prescriptions for a patient to my App. It looks like I have a couple of Options:
    1. Construct Message as a Bundle with multiple Resources (1 Patient, multiple MedPrescriptions (with Medication Reference with “Contained”)).
    2. Construct Message as a Bundle with multiple Resources (Multiple MedPrescriptions (with Patient & Medication References with “Contained”)).

    I am struggling with finding the standard way of sending messages across system. Is there an industry standard in how to construct the messages for my use case?


    • David Hay says:

      Well, we call FHIR a ‘platform’ spec, in part as there are often different ways to do the same thing – and not every application works in the same way! However, there are ‘rules’ around how a message is constructed which any FHIR compliant app should understand (at least those purporting to understand messages). In the example you gave you had a number of contained resources – which was actually the topic of my very first post! (https://fhirblog.com/2013/10/10/fhir-contained-resources/ ) In general, the advice is to avoid contained resources unless they simply cannot be identified – and you’d probably know who the patient was, and want to track prescriptions separately as well. And you’ll be please to know that in DSTU-2 a medicationPrescription now has the option of a codeableConcept for the medication instead of a full resource – which may help.

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