Report errors and request corrections in RxNorm Vocabulary

yj_Lee · September 7, 2021, 5:01am

Hello,
I am a pharmacist doing drug term mapping in Korea.
I found an error in using RxNorm and RxNorm Extension vocabulary and posted it on this forum.

concept code=OMOP4670717 (concept class=Clinical Drug, concept name=Cimetidine 50 MG Oral Tablet)
https://athena.ohdsi.org/search-terms/terms/42944093
concept code=309300 (concept class=clinical drug, concept name=cimetidine 4.8 MG/ML Injectable Solution)
https://athena.ohdsi.org/search-terms/terms/19075372

The correct name for these drugs is cimetropium (bromide), which is listed as cimetidine.

Since “cimetropium” and “cimetidine” are different drugs, please review and correct them.
Thank you.

Chungsoo_Kim · September 7, 2021, 5:32am

Hi, for clarifying,

It doesn’t seem the problems of RxNorm and RxNorm Extension itself (I think they don’t have a code for cimetropium),
but it seems that incorrect mapping from non-standard of KDC (Korean Drug Codes; cimetropium) to standard terminology (RxNorm; cimetidine). is it correct?

yj_Lee · September 7, 2021, 7:17am

As you said, the mapping from the non-standard to the standard term (RxNorm; cimetidine) in the Korea Drug Codes (KDC; cimetropium) is also incorrect.
https://athena.ohdsi.org/search-terms/terms/42979870

However, as it is not appropriate to link the clinical drug name (cimetidine) and the branded drug name (e.g. algiron) in RxNorm Extension, I thought this code name of RxNorm Extension should be modified.

Chungsoo_Kim · September 7, 2021, 8:08am

Yes, I agree with your point. we need to discuss this with vocabulary folks.
@Christian_Reich @Dymshyts Could you please answer this? or any others?

Sooyeon_Cho · September 7, 2021, 9:25am

Hi, thank you for finding this issue.
While developing RxNorm extensions for Korean drug codes, a single mapping mistake below seems to have caused all these related problems.

I think it can be fixed later this year when we plan to work with the newly added Korean drug code.
Does this issue need a hotfix?

Dymshyts · September 7, 2021, 10:51am

Once @Sooyeon_Cho sends us the updated mapping, we’re happy to refresh the OMOP vocabulary with the correct one