April 8, 2019

1

Call to order and role call

Notice of recording

Conflicts of Interest

1330 - 1332h

@Jim Case

Agenda review and approval

1332 - 1335h

@Jim Case

ECE Update

1335 - 1420h

@Bruce Goldberg

• Follow-up discussion of injury, traumatic and non-traumatic

Injury_damage_traumatic_nontraumatic.pptx

EAG agreed that use of DUE TO Event was a preferred way to represent "Traumatic injury"

Additional discussion on approach to handle "non-traumatic injury" needed

• Secondary disorders

Secondary disorders including gout caused by drug.pptx

Qry_Bruce usage report.xlsx

Clinical content "Sources of truth"

1420 - 1500h

@Bruce Goldberg

@Jeff Pierson (Unlicensed)

• Need to revisit the policy on adding text definitions from other sources

  • Do we need to reference them if we paraphrase?

• Combined definitions from multiple sources may be required to fulfill the needs of SNOMED

• SNOMED definitions are not normative, but used to define the meaning of a concept as represented in SNOMED CT.

Break

1500 - 1530h

Product role discussion

1530 - 1600h

@Former user (Deleted)

• Recognized that some product roles are needed to define other procedures and clinical findings

• Those needed existing roles can be temporarily modeled using additional axioms

• Warning language that this is a temporary situation while a more permanent solution is devised will be communicated to the community of practice, MF, CMAG, User-support group and GA(?)

Device project introduction

1600 - 1615h

@Former user (Deleted)

See slides attached

Historical association refset

1615 - 1700h

@Jeremy Rogers (Unlicensed)

@Jim Case

• Consideration of addition of "Withdrawn"

• Concept Inactivation

• From prior discussion, things you can say about an inactivated concept

  • 1..1 exact match - SAME AS

  • 1..X same as one or more concepts - MAY BE

  • Subtype of - WAS A

  • What is the use case for REPLACED BY? For erroneous concepts, out of date concepts? Does it provide additional value to make this distinction?

    • SAME AS: A = B, B = A

    • REPLACED BY: A <> B ?

  • Need to ensure that the semantic granularity is similar for "replacement" concepts.

  • How do we ensure consistent usage? Tooling currently constrains associations allowed for specific inactivation types

  • Do AMBIGUOUS concepts require 2..X MAY BE historical relationships?

  • MOVED TO and MOVED FROM needs to reflect RF2 structures (i.e. modules as opposed to namespaces)

  • WAS A relationships can be constructed from the release files

  • Are additional historical relationships needed to fill gaps in retrieval or analysis?

  • Concepts inactivated without a historical relationship (i.e. non-conformance to editorial policy) have an implied WAS A

• Three aspects need to be considered:

  • Consistent historical relationship assignment by authors

  • Guidance for users to correctly use these relationship

  • From a QA perspective, cleanup of existing relationship to improve internal consistency

• Should this be partially addressed by derivatives?

Discussion

• Audiences that need to be supported by improved historical relationships:

  • Content editors - selection of proper historical associations when inactivating or moving concepts.

  • Data analysts who need a comprehensive history mechanism for traceability and data healing.

  • Implementors who need to know how to replace concepts that are either changed or moved or something else.

  • End user clinician who is trying to record something and all of a sudden his favorite concept has disappeared.

Adjourn

1700h

April 9, 2019

Call to order and role call

Notice of recording

Conflicts of Interest

0900 - 0905h

@Jim Case

Resolving the finding/disorder conundrum

0905 - 1030h

@Matt Cordell

@Former user (Deleted)

Background document:

Break

1030 - 1100h

Proposed SNOMED CT Content Strategy

1100 - 1230h

@Jim Case

• SNOMED 2020-2025 draft strategy

• Review first year deliverables

• Begin discussion on specific criteria to identify the "clinical core" content