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To get translations for at ValueSet, use $expand as follows:

Call $expand on the ValueSet
1. GET <base-url>/fhir/ValueSet/$expand?url=<ValueSet url>&property=designation
Determine best translation:
1. Choose designation with “da” (for Danish) if available, otherwise
2. Choose display (as best alternative - this will be in whatever language the concept is defined with)
  1. In the example below, this is the case for code assessment

Info

Example request and response on $expand on topic-type

Request:

GET <base-url>/fhir/ValueSet/$expand?url=http://ehealth.sundhed.dk/vs/topic-type

Response:

{ "resourceType": "ValueSet", "status": "active",

…

{ "system": "http://hl7.org/fhir/definition-topic", "code": "assessment", "display": "Assessment" }, …

{ "system": "http://ehealth.sundhed.dk/cs/topic-type", "code": "self-treatment", "display": "Self-treatment", "designation": [ { "language": "da", "value": "Selvbehandling" } ] }

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For supported operations on concept lookups and decomposition, please see the supported operations on CodeSystem at httphttps://www.hl7.org/fhir/STU3R4/codesystem-operations.html . Designations targeted consumers/citizens will eg. contain the following data in the designation:

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Given an observation code and corresponding system from the ValueSet "http://ehealth.sundhed.dk/vs/observation-codes" (see https://docs.ehealth.sundhed.dk/latest-released/ig/ValueSet-ehealth-observation-codes.html), how does one then determine how to specify an observed quantity or reference range? The following describes how to obtain values to set in Quantity.code, .system and .unit.

To get values forQuantity.code and Quantity.system use the ConceptMap "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-ucum" (See https://docs.ehealth.sundhed.dk/latest-released/ig/ConceptMap-conceptmap-obs-code-to-ucum.html) as follows:

Call $translate on the given code and system:
1. GET <base-url>/fhir/ConceptMap/$translate?system=<system>&code=<code>
On match found, the values to use in Quantity.codeandQuantity.systemare the matching concept’s code and system, respectively, where the source ConceptMap is

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"http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-ucum

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" (see example response below):

Info

Example request and response on $translate on "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-ucum"

Request:

GET <base-url>/fhir/ConceptMap/$translate?system=urn:oid:1.2.208.176.2.1&code=NPU03804

Response:

{ "resourceType": "Parameters", "parameter": [ { "name": "result", "valueBoolean": true }, { "name": "message", "valueString": "Matches found!" }, { "name": "match", "part": [ { "name": "equivalence", "valueCode": "specializes" }, { "name": "concept", "valueCoding": { "system": "http://unitsofmeasure.org", "code": "kg", "display": "kilogram" } }, { "name": "source", "valueUri": "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-ucum" } ] } ] }

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To get the corresponding and printable value for Quantity.unit, use the ConceptMap "http://ehealth.sundhed.dk/ConceptMap/conceptmap-ucum-to-printsymbol" (see https://docs.ehealth.sundhed.dk/latest-released/ig/ConceptMap-conceptmap-ucum-to-printsymbol.html) as follows:

Call $translate on the given system and code determined in the response above:
1. GET <base-url>/fhir/ConceptMap/$translate?target=http://ehealth.sundhed.dk/vs/ehealth-ucum-printsymbol-supplement&code=<code>&system=<system>
On match found, extract the matching concept (see example response below).
Call $lookupon the matching (CodeSystem) system and code:
1. GET <base-url>/fhir/CodeSystem/$lookup?system=http://ehealth.sundhed.dk/cs/ehealth-ucum-printsymbol-supplement&code=<code>
On match found, the value to use in Quantity.unitis the matching concept’s designation.valuewhere the designation.language=da(see example response below). If there is no such designation, the printable value in Quantity.unit shall be left empty.

Note
The $lookup does not return designation on eHealth Infrastructure Release 4 and other releases prior to Release 5.

Info

Example request and response on $translate on "http://ehealth.sundhed.dk/ConceptMap/conceptmap-ucum-to-printsymbol"

Request (Note that URL-encoding of percent as code is used):

GET <base-url>/fhir/ConceptMap/$translate?target=http://ehealth.sundhed.dk/vs/ehealth-ucum-printsymbol-supplement&code=%25&system=http://unitsofmeasure.org

Response:

{ "resourceType": "Parameters", "parameter": [ { "name": "result", "valueBoolean": true }, { "name": "message", "valueString": "Matches found!" }, { "name": "match", "part": [ { "name": "equivalence", "valueCode": "specializes" }, { "name": "concept", "valueCoding": { "system": "http://ehealth.sundhed.dk/cs/ehealth-ucum-printsymbol-supplement", "code": "%", "display": "percent" } }, { "name": "source", "valueUri": "http://ehealth.sundhed.dk/ConceptMap/conceptmap-ucum-to-printsymbol" } ] } ] }

Info

Example request and response on $lookup on "http://ehealth.sundhed.dk/cs/ehealth-ucum-printsymbol-supplement" (see https://docs.ehealth.sundhed.dk/latest-released/ig/CodeSystem-ehealth-ucum-printsymbol-supplement.html)

Request (Note that URL-encoding of percent as code is used):

GET <base-url>/fhir/CodeSystem/$lookup?system=http://ehealth.sundhed.dk/cs/ehealth-ucum-printsymbol-supplement&code=%25

Response:

{ "resourceType": "Parameters", "parameter": [ { "name": "name", "valueString": "UCUMPrintSymbolSupplement" }, { "name": "version", "valueString": "0.6.0" }, { "name": "display", "valueString": "percent" }, { "name": "abstract", "valueBoolean": false }, { "name": "designation", "part": [ { "name": "language", "valueCode": "da" }, { "name": "use" }, { "name": "value", "valueString": "%" } ] } ] }

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Given an observation codeand corresponding system from the ValueSet "http://ehealth.sundhed.dk/vs/observation-codes" (see https://docs.ehealth.sundhed.dk/latest-released/ig/ValueSet-ehealth-observation-codes.html), how does one determine whether an observed quantity or reference range shall be stated as an integer or decimal? While a particular device might produce a decimal with a given precision for a measure, it is up to the client/solution to convert to the form expected by the infrastructure. Whether integer or decimal, the value is set inQuantity.value.

To determine whether to use integer or decimal, use the ConceptMap "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-value-type" (see https://docs.ehealth.sundhed.dk/latest-released/ig/ConceptMap-conceptmap-obs-code-to-value-type.html) as follows:

Call $translate on the given code and system:
1. GET <base-url>/fhir/ConceptMap/$translate?system=<system>&code=<code>&target=http://hl7.org/fhir/ValueSet/data-types
On match found, indication of whether to use integer or decimal are the matching concept’s code and system, respectively, where the source ConceptMap is

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"http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-value-type

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" (see example response below).
The codes integer and decimal in system http://hl7.org/fhir/data-types signify that the observed value or reference range shall be given as integer and decimal, respectively.

Info

Example request and response on $translate on "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-value-type"

Request:

GET <base-url>/fhir/ConceptMap/$translate?system=urn:oid:1.2.208.176.2.1&code=NPU03804&target=http://hl7.org/fhir/ValueSet/data-types

Response:

{
    "resourceType": "Parameters",
    "parameter": [
        {
            "name": "result",
            "valueBoolean": true
        },
        {
            "name": "message",
            "valueString": "Matches found!"
        },
        {
            "name": "match",
            "part": [
                {
                    "name": "equivalence",
                    "valueCode": "specializes"
                },
                {
                    "name": "concept",
                    "valueCoding": {
                        "system": "http://hl7.org/fhir/data-types",
                        "code": "decimal",
                        "display": "decimal"
                    }
                },
                {
                    "name": "source",
                    "valueUri": "http://ehealth.sundhed.dk/ConceptMap/conceptmap-obs-code-to-value-type"
                }
            ]
        }
    ]
}

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