Stream: implementers
Topic: Standard Deviation extension
Lauri Karppinen (Apr 17 2019 at 11:51):
Hey! This extension would be useful in our implementation. I think there is no place for standard deviation anywhere in observation resource? sd is one of the many things we need to store. This extension I found looks just like the right thing but there is no url in this? https://simplifier.net/extensions-dstu2/iso21090-uncertainty or is just the overview of this extension that gets me confused? Can it be used like this?:
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty",
"valueDecimal": 0.55
}
],
Lloyd McKenzie (Apr 17 2019 at 15:23):
Observation gives you an additional option, which is Observation.component. Anything that represents an additional qualification/aspect of the observed value should generally be sent there - as it's more likely to be recognized/supported by other systems.
Eric Haas (Apr 17 2019 at 15:27):
See also the stats operation : http://build.fhir.org/observation-operation-stats.html for more on this
Lauri Karppinen (Apr 23 2019 at 08:51):
I've actually used observation.component for many things but I don't know why I didn't come to my mind that I could use it to this as well. So it would be as simple as this?:
"component": [
{
"code": {
"coding": [
{
"code": "386136009",
"display": "Standard deviation (qualifier value)",
"system": "http://snomed.info/sct"
}
]
},
"valueDecimal": 0.55
}
]
Lloyd McKenzie (Apr 23 2019 at 14:52):
yes
Last updated: Apr 12 2022 at 19:14 UTC
