Stream: inferno
Topic: Data Absent Reason for non-coded data elements
Lakshmi Bhamidipati (Apr 23 2021 at 17:35):
This is probably a basic question, but I am trying to figure how to fulfil the requirement of our system being able to support data-absent-reason for non coded elements. Are we are supposed to set this only for mandatory elements? I took a look at the Inferno Reference Server results and there is one record in "Condition" resource with Category as unknown. We always set a category because it is either a problem, diagnosis or a health concern. The one place that I can think of where I can use DataAbsentReason extension is in Identifer (it is mandatory) for Person resource. An MRN may not be present in our system,
If MRN is not present, can I set the element to
"Identifier": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
"valueCode": "unknown"
}
]
}
]
Also, say the LastName is not present in a Practitioner's name, since Name is required, I am assuming we can then set the data-absent-reason to unknown.
"name": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
"valueCode": "unknown"
}
]
}
]
or
if I have data from an external Organization, since I am not confident if the status is Active or not, I could set Active to "unknown"?
"active": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
"valueCode": "unknown"
}
]
}
]
Are there any other scenarios where I can use this extension?
Thanks.
Yunwei Wang (Apr 23 2021 at 21:51):
US Core provides instruction at http://hl7.org/fhir/us/core/general-guidance.html#must-support and http://hl7.org/fhir/us/core/general-guidance.html#missing-data
If the element is optional and MustSupport and the reason for absence is unknown, skip the element
If the element is optional and MustSupport and the reason for absence is known, use either value from value set or dataAbsentReason extension
If the element is required and non-coded, use dataAbsertReason extnesion
If the element is required and coded, the list of options is in http://hl7.org/fhir/us/core/general-guidance.html#missing-data
Lakshmi Bhamidipati (Apr 23 2021 at 21:56):
Thank you @Yunwei Wang . I think I was looking for use cases where this would hold true. But I think I am good. In our system we have to figure out how to configure data such that the test for non-coded and required is successful.
Chetana Suresh (Jun 09 2021 at 15:13):
Could this be the reason why a test would fail if a particular patient doesn't have, say an Allergy Intolerance record? We have a scenario like this which is returning a 404 error, but does not include data-absent-reason
Last updated: Apr 12 2022 at 19:14 UTC
