Questionnaire Snippet
In this example snippet of xml from the Questionnaire we embed a value set definition within the Questionnaire using codes from SNOMED CT.
<Questionnaire xmlns="http://hl7.org/fhir">
<contained>
<ValueSet>
<id value="Yes_No_Unknown"/>
<name value="SNOMED CT Yes No Unknown Value Set"/>
<status value="active"/>
<compose>
<include>
<system value="http://snomed.info/sct"/>
<concept>
<code value="373066001"/>
<display value="Yes"/>
</concept>
<concept>
<code value="373067005"/>
<display value="No"/>
</concept>
<concept>
<code value="261665006"/>
<display value="Unknown"/>
</concept>
</include>
</compose>
</ValueSet>
</contained>
…….
<item>
<linkId value=”def38978-c6be-11ea-87d0-0242ac130003”/>
<code>
<system value=”http://snomed.info/sct”/>
<code value=”413839001”/>
<display value="Chronic lung disease"/>
</code>
<text>Does the patient have chronic lung disease?</text>
<type value=”choice”/>
<answerValueSet value=”#Yes_No_Unknown” />
</item>
……..
</Questionnaire>
Questionnaire Response
<QuestionnaireResponse xmlns="http://hl7.org/fhir"> ……. <item> <linkId>def38978-c6be-11ea-87d0-0242ac130003</linkId> <text>Does the patient have chronic lung disease?</text> <answer> <valueCoding> <system value=”http://snomed.info/sct”/> <code value=”373067005”/> <display value=”No”/> </valueCoding> </answer> </item> …….. </QuestionnaireResponse>
Questionnaire Response Transformed to FHIR Observation based on ANF
The “No” answer to the Questionnaire is transformed in the FHIR Observation as a Range of > 0 and <= INF based on the ANF specification.
<?xml version="1.0" encoding="UTF-8"?>
<Observation xmlns="http://hl7.org/fhir">
<identifier>1691bcb0-c6ba-11ea-87d0-0242ac130003</identifier>
<status value="final"/>
<code>
<coding>
<system value="http://snomed.info/sct"/>
<code value="413839001"/>
<display value="Chronic lung disease"/>
</coding>
</code>
<subject>
<reference value="Patient"/>
</subject>
<focus>
<reference value=”Patient”/>
</focus>
<effectiveDateTime value="Time of observation"/>
<performer>
<reference value=”Practitioner”/>
</performer>
<valueRange>
<Range>
<low>
<value>0</value>
<comparator value=”>”/>
<code>
<system value=”http://snomed.info/sct”/>
<code value=”118595003”/>
<display value="Quantity content"/>
</code>
</low>
<high>
<value>INF</value>
<comparator value=”<=”/>
<code>
<system value=”http://snomed.info/sct”/>
<code value=”118595003”/>
<display value="Quantity content"/>
</code>
</high>
</Range>
</valueRange>
</Observation>
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