===Proposals are now housed on github===
[[https://github.com/OHDSI/CommonDataModel/issues/91|link to github issue]]


Requestor: Vojtech Huser
Discussion:


Current CDM version may contain some concepts that are specific to a region.

For example, some constructs reflect USA centric concepts.

  - We should somehow mark those region-specific columns (in various tables) 
  - We should allow regions to propose region-specific extensions to the CDM