Deleting Diagnoses EHSDIAGSL OH

Hi Gurus, I need some help  deleting diagnoses using EHSDIAGSL T-CODE

I've loaded some diagnoses using the import option, now I need to erase some of them

I know there are two tables:

T7EHS00_DIAGSL

T7EHS00_DIAGSLT

The funny thing is that, after deleting a Diagnose (Using Delete option in EHSDIAGSL) it disappears from  T7EHS00_DIAGSL but not from T7EHS00_DIAGSLT.

Am I using the right method to delete Diagnoses?

Do I've to delete manually  the diagnose from  T7EHS00_DIAGSLT?

Is there a Standard transaction to do this?