Stream: implementers
Topic: ValueSets with Units
Diana_Ovelgoenne (Jun 23 2021 at 09:51):
Hello all, I am wondering if there is a way, when creating my Lab ValueSets to not just include the LOINC codes that I need, but also their corresponding units, as there are some Concepts in LOINC with 2 different possible units.
John Moehrke (Jun 23 2021 at 13:07):
the units are indicated in the value. See Value Quantity http://hl7.org/fhir/datatypes.html#Quantity
Diana_Ovelgoenne (Jun 25 2021 at 06:05):
yes, that i know. But that means that for a catalog of n lab elements I need to define n Observations to ensure I define the unit in the Quantity, rather than having a general Observation with a cardinality n to use the valueSets I have inside the lab catalog.
Eric Prud'hommeaux (Jun 25 2021 at 07:38):
To test my understanding, you have n pairs of LOINC code and corresponding units. You could create an Obs profile for each pair, constraining the code and the units of the valueQuantity but you'd rather write those pairs directly and have validation or classification use those pairs (i.e. not create n Obs profiles).
Grahame Grieve (Jun 25 2021 at 07:40):
the answer is that this is open business for us, I'm afraid
Grahame Grieve (Jun 25 2021 at 07:40):
but the answer I want to have is to bind a profile to a set of ObservationDefinitions
Eric Prud'hommeaux (Jun 25 2021 at 07:48):
i think that means you're in favor of keeping it so that you have to define the n Observations, but that you'd also like a profile to define multiple Observations
Diana_Ovelgoenne (Jun 25 2021 at 08:03):
Yes @Eric Prud'hommeaux you understood my dilema. It would be nice from the semantic side of the world, just to have a complete definition on the valueSet rather than having n Observations, as when I need a new lab value, i could just update my valueSet and would be ready rather than doing yet another Observation.
I will continue doing my n Observations per Profile.
Eric Haas (Jun 25 2021 at 16:50):
I thought this is what observationdefinition is addressing
Last updated: Apr 12 2022 at 19:14 UTC
