Stream: Patient Care WG
Topic: Allergy Period
Jay Lyle (Sep 14 2021 at 20:38):
We are mapping CCDA Allergy into FHIR. The CCDA specification includes guidance that effectiveTime.high is the "definitive" criterion for a clinical status of resolved. Implementers tell us that will not populated, but since it's in the spec, it might, and we think the map should support it.
We are discussing whether effectiveTime.high would require a FHIR extension or be equivalent to onsetPeriod.end. Either way, onsetPeriod might benefit from clarification: either "this period represents the time range in which the onset was detected, not the active period of the sensitivity" or "this period represents the active period of the sensitivity".
Lloyd McKenzie (Sep 14 2021 at 21:26):
OnsetPeriod indicates uncertainty about when something started. E.g. "Started sometime between 1980 and 1982". It does not reflect when the allergy abated. That's not currently tracked - and is generally not knowable. You might be able to know that someone was exposed and didn't have a reaction, but is that the abatement date?
Lloyd McKenzie (Sep 14 2021 at 21:27):
If you think that's not sufficiently clear, feel free to submit a change request :)
Ken Lord (Sep 17 2021 at 12:57):
If I change the word "abated" to "resolved", does that change the answer? The use case is the clinical status in Allergy changes for "active" to "resolved". How do we / should we capture the time period or dates when the status was set to resolved?
Lloyd McKenzie (Sep 17 2021 at 13:38):
It would be captured in Provenance. Is this something you feel is commonly captured or used for allergy/intolerance records?
Lloyd McKenzie (Sep 17 2021 at 13:39):
You could submit a change request for a candidate core element or extension
Last updated: Apr 12 2022 at 19:14 UTC
