FHIR Chat · Extensions on VS concepts · shorthand

Stream: shorthand

Topic: Extensions on VS concepts

Patrick Werner (May 18 2021 at 07:05):

I tried to create a ValueSet with extensions on the concepts, but failed to do so.

Patrick Werner (May 18 2021 at 07:06):

We are using the ordinalValue Extension on concepts:

"compose": {
        "include": [
            {
                "system": "http://molit.eu/fhir/vitu/CodeSystem/vitu-workinglist",
                "concept": [
                    {
                        "extension": [
                            {
                                "url": "http://hl7.org/fhir/StructureDefinition/ordinalValue",
                                "valueDecimal": 0
                            }
                        ],
                        "code": "0-new",
                        "display": "Neu"
                    },

Patrick Werner (May 18 2021 at 07:06):

I couldn't figure out how to add an extension on a concept in FSH

Chris Moesel (May 18 2021 at 09:20):

This is one of the limitations in FSH STU1. The CodeSystem syntax doesn't allow you to set extensions (or some of the properties, like designation) on individual concepts. In FSH STU1 (and current SUSHI), you need to use Instance with Usage: #definition to define CodeSystems w/ those features.

Chris Moesel (May 18 2021 at 09:21):

The good news is that we're proposing an approach for FSH STU2 that can handle this. It will basically be the ^ syntax you're already familiar with, but with concepts. We hope to release a new version of SUSHI with those features in the coming weeks.

Patrick Werner (May 18 2021 at 09:46):

Thanks for your work and the update

Last updated: Apr 12 2022 at 19:14 UTC