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How to get Non-standard to Standard map (OMOP) information

Vocabulary Users
#1

In KCD7, A00.0 is OMOP code 42483628, which is nonstandard, and this OMOP code[42483628] can not be used in CDM.
But Looking at the details of the A00.0 code in Athena, there is Non-standard to Standard map (OMOP) information, and the Non-standard to Standard map (OMOP) code for A00.0 is 4344638.
In the above example, I think the standard OMOP code for A00.0 of KCD7 is 4344638.

So, I have two questions about concept ID mapping for KCD7.

1.As in A00.0 -> 42483628 -> 4344638,
I think there is relationship information between a nonstandard code [42483628]
and a Non-standard to Standard map (OMOP) code information [4344638] for source code A00.0 in some place of the vocabulary internal files (CONCEPT.csv, CONCEPT_ANCESTOR.csv, CONCEPT_CLASS.csv, CONCEPT_RELATIONSHIP.csv, CONCEPT_SYNONYM.csv, DOMAIN.csv, DRUG_STRENGTH.csv, RELATIONSHIP.csv, RELATIONSHIP.csv, RELATIONSHIP.csv) , VOCABULARY.csv). If possible, please let me know a way to find the relationship.

  1. If there is a method to download non-standard to standard map (OMOP) codes for some source codes (KCD, or EDI, etc) like A00.0 -> 4344638, I would like to know it.

I believe this will be very helpful to map the standardized concept ID.

Thank you in advance.

Youngmi

#2

Hello @maryhan01,

There was another thread with a similar question answered. Also, you might find some answers in the Book of OHDSI, which covers the vocabulary topic (as long as many others) in great detail.
Hope it helps.

#3

Thank you so much.
I am a very beginner in omop cdm. I’ll check the book of ohdsi.

Please let me know which chapter I have to read.

Youngmi

#4

@maryhan01,

I’d recommend chapter 5 for the overall description of vocabulary standardization approach. The link above specifically points to 5.3 (‘Relationships’).
Good luck!

t