FHIR Chat · Does FHIR support nullFlavor

Stream: implementers

Topic: Does FHIR support nullFlavor

Jingdong(JD) Li (Jul 13 2016 at 01:31):

I searched over the stream, didn't find any NullFlavor related talking. Here is an real world use case: a physician like to know where his patients had blood gluose test (prior to breakfast), if yes, then record the test result, if no, then specifically flag it. Below is a brief FHIR sample:
<Observation>
<status value="final"/>
<code>
<coding>
<system value="LOINC"/>
<code value="39480-9"/>
<display value="Clucose"/>
</coding>
<text value="血糖"/>
</code>
<valueQuantity>
<value value="5.21"/>
<unit value="mmol/l"/>
</valueQuantity>
</Observation>
My question is that if patient did not do blood glucose test, how should I represent it in FHIR?

Jingdong(JD) Li (Jul 13 2016 at 01:33):

"Dose" should be "Does" in the subject line

Jingdong(JD) Li (Jul 13 2016 at 01:35):

"Dose" should be "Does" in the subject line..... Sorry for the typo

Grahame Grieve (Jul 13 2016 at 01:37):

<Observation>
<status value="final"/>
<code>
<coding>
<system value="LOINC"/>
<code value="39480-9"/>
<display value="Clucose"/>
</coding>
<text value="血糖"/>
</code>
<dataAbsentReason>
</dataAbsentReason>
</Observation>

Jingdong(JD) Li (Jul 13 2016 at 01:38):

Thank you Grahame.

Grahame Grieve (Jul 13 2016 at 01:38):

oops... ```
<Observation>
<status value="final"/>
<code>
<coding>
<system value="LOINC"/>
<code value="39480-9"/>
<display value="Clucose"/>
</coding>
<text value="血糖"/>
</code>
<dataAbsentReason>
<coding>
<system value="my system"/>
<code value="not performed"/>
</coding>
</dataAbsentReason>
</Observation>

Grahame Grieve (Jul 13 2016 at 01:39):

@Eric Haas , I think that 'test not performed is an imminently sensible thing to have in the dataAbsentReason value set - JD, can you create a task to add that please