Value Set Definition Standard Project

A New Normative Standard for Value Set Definitions

Overview

[From the PSS] Describe the elements that make up a “Value Set Definition”, and ballot this as a normative HL7 specification, including a demonstration of how this is met in FHIR profiles and HL7 Model Interchange Format (MIF).

The definition of value sets is a required activity in completing the specification of most health information technology artefacts. To date, the approach for doing so has not been consistent within HL7 constructs and elsewhere. Many of the required elements and approaches are embedded in existing HL7 artefacts but not consistently. Currently, an explicit list of all the fields in an HL7 value set definition are surfaced only in the informative balloted MIF, with a general description of them in the normative Core Principles specification. A more accessible and standardized list of these fields is required to facilitate interoperability and sharing of value set definitions across HL7 artefacts and the Health IT community at large.

Success criteria: Publishing of the normative standard, and a demonstration of value set definitions that conform to this published normative specification.

Project Processes

Conference Call Schedule and Minutes

Weekly meeting to occur Wednesdays 3-4pm ET

Remember US ET is now -5 UTC

Phone: +1 770-657-9270, Participant Code: 598745
Webmeeting Info:
Topic: HL7 VSD weekly meeting
Date & Time: Wednesday at 13:00 UTC-07
Duration: 1 hour
To participate, click on the link: https://go.mikogo.com/?sp=HL7vsd&sid=559756147
If the above link does not work, you can follow these steps instead to join a session:
1. Go to http://go.mikogo.com
2. Enter the Session ID: 559-756-147
3. Enter your name
4. Click "Join Session"
5. Enter the Session Password: HL7vsd

Second Weekly meeting to occur on Fridays 10am EST

Duration: 1 hour
Regular HL7 Vocab Phone: +1 770-657-9270, Participant Code: 598745
Web session: https://go.mikogo.com/?sp=VSD-2ndcall&sid=277184318
If the above link does not work, you can follow these steps instead to join a session:
Go to http://go.mikogo.com, Enter the Session ID: 277-184-318, Enter your name, Click "Join Session", Enter the Session Password: VSD-2ndcall

If MIkogo is not available, we will use the following:
To participate, click on the link:  https://join.me/474-238-263 
On PC or Mac, use any browser with Flash. Nothing to download. 
On a phone or tablet, launch the join.me app and enter meeting code: 474-238-263 
Or browse to http://join.me and enter the code 464-238-263 into the box under "join meeting", and click on the arrow.  There is no password for this meeting.

===Upcoming Meeting Agenda=== (12/20/13)

1. 10 min: Logistics
   1. We completed the review of the Logical Elements/Functions to define Content Logical Definition based on the MIF
      1. See Valueset MIF ContentDefinition for updated comments.
   2. See Vocab Listserv for continued discussion on use of STATUS
      1. Listserv discussion resolved through the use of:
         1. effectiveDate & endDate
            1. This essentially becomes a date range during which the definition can be used to create expansions that may be used to create new instances of data. The endDate can be added without efecting the version of the definition.
         2. A TBD characteristic that can be used to identify code system versions for which the definition can be applied.
            1. This "set" must be defined at the time the definition is created. It can not be modified later.
   3. Holiday schedule:
      1. Rob will run 12/20.
      2. No meeting 12/25 - 1/1. Next meeting will be 1/3
      3. Schedule will change in Jan and beyond. Rob will not be available on Thursdays or Fridays.
   4. Additions to agenda?
   5. Folks should continue to review current value set metadata document but we will come back to this once Content Logical Definition function review is complete. [1]
2. 45 min: Content work
   1. Continue discussion on Value_Set_Metadata spreadsheet
      1. We will continue to review the content of this sheet.
      2. Need to plan an entire meeting on constraints/approach for allowing expressions as members of a value set. This may not be included in initial standard.

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Minutes documents:

20131016_VSD_Minutes
20131022_VSD_Minutes
20131030_VSD_Minutes
20131106_VSD_Minutes
20131113_VSD_Minutes
20131120_VSD_Minutes
20131122_VSD_Minutes
20131127_VSD_Minutes
20131129_VSD_Minutes
20131204_VSD_Minutes
20131206_VSD_Minutes
20131211_VSD_Minutes
20131213_VSD_Minutes
20131218_VSD_Minutes

Key Target Dates

Now targeting May 2014 ballot submission
Feb. 2014 - intention to ballot

Project Documents

The project working documents are being maintained using Google Docs. These can be found at: Links to project documents