Stream: Da Vinci PDex Drug Formulary
Topic: Which RxNorm Term should be used for DrugName?
Kate Dech (May 27 2021 at 22:43):
I apologize if this is already covered somewhere. Which RxNorm Name should be used in our MedicationKnowledge.code.coding.display?
In the examples in the IG, it looks like the "Prescribable Synonym" Name was used.
https://build.fhir.org/ig/HL7/davinci-pdex-formulary/MedicationKnowledge-cmsip9.html This is RxCUI 1000091.
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But when I look at US Core Medication and their RxNorm Codes and Display Values, they appear to use the RxCUI Full Name. See RxCUI 104490 on
https://www.hl7.org/fhir/us/core/ValueSet-us-core-medication-codes.html
They show the display as "Simvastatin 10 MG Oral Tablet [Zocor]" which is the Full Name. The prescribable synonym is "Zocor 10 MG Oral Tablet"
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When performing the DrugName Search which name you populate can impact the results especially without modifiers (starts with) or with :contains.
Currently we have both the full name (mapped to code.coding.display) and prescribable synonym (mapped to code.text). But I am wondering if this should be reversed - at least to be consistent across the resources that include RxNorm as a CodeableConcept.
Lloyd McKenzie (May 28 2021 at 00:01):
@Rob Hausam
Corey Spears (May 28 2021 at 19:36):
@Rob Hausam will have to confirm, but according to this page (https://www.hl7.org/fhir/rxnorm.html), the proper display name should be from rxnconso (Concept Names and Sources), STR (Field 15) when the SAB (Source Abbreviation Field 12) is "RXNORM and TTY (Term Type Field 13) is equal to SCD (Semantic Clinical Drug) or SBD (Semantic Branded Drug).
Looking through the downloaded files and comparing it to what RxNav is displaying, it seems this is the string RxNav is using as the Full Name.
So, it looks like the code.coding.display should be the full name.
Would you mind adding a Jira for us to track?
Last updated: Apr 12 2022 at 19:14 UTC
