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Value Set Expansion Standard Project

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Project Scope

This project builds upon the work of the Value Set Definition standard to define what content belongs in a value set expansion, how that can be defined, and will include how an expansion may be constrained for a particular use, such as the FHIR Expansion Profile.

Project Scope Statement

Download current PSS here

General meeting Agenda

Next meeting - will be determined after the September 2017 WGM - and then every other week after that
Remember USA is still on DAYLIGHT SAVING TIME EDT is UTC -4

Meetings occur every other week - Tuesdays @ 2pm EDT for 60 min. - alternating with VBS call

Telephone uses standard HL7 Vocab number: 1 (770) 657-9270,,,598745# - NOT THE SHARED SCREEN NUMBER FOR MIKOGO OR OTHERS

Meeting will be one of the following web share environments

August 8 and September 5 meetings will be chaired by Ted Klein using the "Join.Me Session" below

Normal web share sessions:

Mikogo session

If the above link does not work, you can follow these steps instead to join a session:
# Go to
# Enter the Session ID: 368-206-475
# Enter your name
# Click "Join Session"

Join.Me session

The above link works with any browser. Once there:

  1. Click on "Knock To Enter"


VSE Minutes Here

General Items from San Diego WGM September 2017

Items that people have desired to have control over in an Expansion that we do not currently have a way to specify the parameter

  1. Display Strings with each coded concept
  2. Human language of strings in the expansion
  3. Activity Status of the coded concept
  4. Concept relationships
  5. Other metadata for a coded concept that exist in the referenced code system
  6. Code System metadata (such as the IP information) with the expansion