Stream: implementers
Topic: Condition resource
Pranitha Sruthi (Apr 18 2017 at 12:54):
Hi all, is it necessary to capture the date of diagnosis in the past medical history of a patient?
Michelle (Moseman) Miller (Apr 18 2017 at 13:15):
Assuming you are asking about the Condition resource, the elements for both assertedDate and onset have cardinality of 0..1, which means they are both optional.
Pranitha Sruthi (Apr 18 2017 at 13:21):
@Michelle (Moseman) Miller Ok Thank You
Pranitha Sruthi (Jun 19 2017 at 06:18):
Hi all, may I know the purpose of each extension in the resource condition? For instance, if a patient is ill, there may be many possible reasons for his/her illness. Which extension shall I use to list out all the possible reasons? Also, which extension should be used to list out the causes of illness which are incorrect? Thank you
Michelle (Moseman) Miller (Jun 22 2017 at 13:31):
The HL7 extensions are summarized here: http://build.fhir.org/condition-extensions.html
The relevant ones for your consideration would be:
- "dueTo" used to convey what caused or triggered the Condition (but there isn't a degree of certainty to convey "possible" or "ruled out")
- "occurredFollowing" used to convey what preceded the Condition (no causality implied)
Of course, there is always the possibility that these reasons were part of the Condition.note (annotation) and not fully codified and structured, which is why dueTo and occurredFollowing are extensions.
Michelle (Moseman) Miller (Jun 22 2017 at 22:35):
Patient Care discussed this today and wanted to clarify the intent of the original question, @Pranitha Sruthi
Are you asking about the Condition.verificationStatus with possible values of Differential or Refuted?
Or, are you asking about the reason for the condition, such as whether pneumonia was caused by bacteria or a virus?
Pranitha Sruthi (Jun 23 2017 at 09:16):
Hi @Michelle (Moseman) Miller I'm not asking about the condition.verficationStatus. It's the second case. Which extension can be used to sort out all the possible reasons for a particular condition or illness (differential diagnosis) ? Thank you
Michelle (Moseman) Miller (Jun 23 2017 at 13:05):
The Condition "dueTo" HL7 extension can be used to reference what caused the condition, but it doesn't include a degree of certainty (e.g. "possible reason"). As such, if you need that degree of certainty, then you may need to create your own extension. Otherwise, other systems may simply capture that information using the Condition.note.text.
Last updated: Apr 12 2022 at 19:14 UTC
