SNOMED CT Languages Project Group

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Date & Time

20:00 UTC Wednesday 7 December 2016 

GoToMeeting Details

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Goals

  • To discuss feedback from B2i on Expression Constraint Language
  • To progress the SNOMED CT Template Syntax

Attendees 

Apologies

Agenda and Meeting Notes

Description
Owner
Notes

Welcome, apologies and agenda review

Linda Bird

Record attendees and apologies

Review agenda for today's meeting

Feedback from B2i on ECL

Orsolya Bali

Members of Descendants

B2i proposes that the MemberOf function is allowed to be applied to a set of reference sets

  • ^<<446609009|Simple type reference set| /* Invalid */

 

For example, to select members of all GP refsets:
|General Practice / Family Practice reference set|
 
     |GP/FP health issue reference set|
 
         |Adverse drug reactions reference set for GP/FP health issue|
 
         ...
 
     |GP/FP reason for encounter reference set|
 
         |Family history reference set for GP/FP reason for encounter|
 
         ...

Constraints over Medication Strength

B2i proposes that a new symbol is introduced to indicate a refinement of a relationship - for example:

  • < |Pharmaceutical / biologic product}: 
    { |has active ingredient| = << |calcium carbonate|, 
    ( |has basis of strength| = |calcium only|) ~ (|strength magnitude| >= #500), |strength unit| = |mg|)}
Alternative solutions
Using the existing ":" refinement symbol
    • < |Pharmaceutical / biologic product}: 
      { |has active ingredient| = << |calcium carbonate|, 
      ( |has basis of strength| = |calcium only|) : (|strength magnitude| >= #500), |strength unit| = |mg|)}
Applying the strength as a refinement of the substance
  • < |Pharmaceutical / biologic product}: 
    { |has active ingredient| = << |calcium carbonate|, 
      |has basis of strength| = (|calcium only|: (|strength magnitude| >= #500), |strength unit| = |mg|)}

Flattening the relationships into a 'close-to-user' form

  • < |Pharmaceutical / biologic product}: 
    { |has active ingredient| = << |calcium carbonate|,
      |has basis of strength| = |calcium only|,
     |strength magnitude| >= #500, 
    |strength unit| = |mg|)}
Progress SNOMED CT Template Syntax
Linda Bird
See
Confirm next meeting date/time
Linda Bird
Next meeting to be held at 20:00 UTC on Wednesday 21 December 2016

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