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Should we deduplicate same diagnosis records on the same claim or visit
CDM or THEMIS convention?
THEMIS
Table or Field level?
Table
Is this a general convention?
No
Summary of issues
How to do if multiple same diagnosis come across on the same claim or visit. Should we eliminate the duplicate?
Below is the initially proposal raised by Erica Voss:
Summary of answer
We will not be making a recommendation to deduplicating diagnosis. We believe the opportunity for error is higher than what would be gained. (Can keep all diagnosis records)
Interesting question. Of course, there is only one diabetes, and duplicating it does not change that fact. The only time this could make sense if there are several cases of the same disease in parallel, like everything topical: You can have two moles, and two abscesses, and in any one visit only one of them might be treated. Not sure we have the data to support that complexity, and I don't think the position should be the way to distinguish them.
Should we deduplicate same diagnosis records on the same claim or visit
CDM or THEMIS convention?
THEMIS
Table or Field level?
Table
Is this a general convention?
No
Summary of issues
Below is the initially proposal raised by Erica Voss:
![Image](https://private-user-images.githubusercontent.com/84256452/326406927-49497700-ab48-4027-9170-24471c22a4d1.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.Icao53febnK2_nvS8UKLGLm7Pi1S_cFfkpHxyBca9TA)
Summary of answer
Related links
OHDSI Forum: https://forums.ohdsi.org/t/duplicate-diagnosis-themis-wg3/3966/28
Other comments/notes
In this OHDSI Forum post, it gives one suggestion on how to deal with duplicate (same) diagnosis records.
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