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TermInfo Project

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TermInfo 2 – Meeting Information

Leader: Rob Hausam, MD

Date / Time(s): Call is scheduled to last 1 hour Bi-weekly on Wednesdays 09:00 AM (Eastern Time, GMT -04 DST)

Web Meeting Info (GoToMeeting and call-in details):

Access Code: 912-947-024 Audio PIN: Shown after joining the meeting Meeting ID: 912-947-024

Use your microphone and speakers (VoIP) - a headset is recommended. Or, call in using your telephone.

Phone Number: +1 770-657-9270 Participant Passcode: 556896

TermInfo 2 – Meeting Agendas and Minutes



Link to TermInfo Project minutes on

TermInfo 2 – Implementation Guide for Using SNOMED CT and LOINC Terminologies in HL7 Information Models

The new and expanded project officially began at the January 2012 WGM in San Antonio. The intent is to develop material for DSTU followed by normative ballot to address issues of overlap between the terminology and information models.

TermInfo 2 Project Scope Statement: File:HL7 Project Scope Statement Vocab Terminfo R2 01-15-2012 final.doc

The links below are to the content from the previous DSTU standard (expired May 2009), which will serve as the starting point for our new work:

  • Using SNOMED CT in HL7 Version 3; Implementation Guide, Release 1.5

Hot Topics

  • How to represent negation
  • Considering changes in use of ASSERTION
  • Discuss use of nesting in Problem Concern and Allergy Concern Acts
  • Post-coordination
  • Reporting negative assertions, ie No Growth, No Problems, No Results
  • Use of NULL flavors
  • Canonical sentences: a mechanism to reveal semantic meaning of coded clinical statements
  • Terminology binding

Use Cases

(Each use case needs to be given a meaningful name, then linked out to a page for that use case.)


{Presentations given to explain TermInfo 2 will be posted here.)


(A summary will be posted here of any Principles which form the basis upon which TermInfo 2 is built.)

TermInfo 1.5 DSTU - Update Project

This section of the wiki contains the content of the TermInfo, Release 1.5, broken into individual word documents. There is one document per chapter of the TOC. These files will be used to facilitate updating of the material from version 1.5 of the TermInfo Implementation Guide (Initially named, Using SNOMED CT in HL7 Version 3; Implementation Guide, Release 1.5) . Updates will be based on ballot comment reconciliations from the 2009 Ballot and other currently relevant improvements.


File:Terminfo Audience section-draft-prior to scoping.docx


1 Introduction and Scope (10 pages)

1.1 Purpose of the guide
1.2 Overview
1.3 Future Work
1.4 Scope
1.5 How to read this document
1.6 Documentation conventions
1.7 Background
1.8 Requirements and Criteria
1.9 Asserting Conformance to this Implementation Guide

Chapter Drafts
Updated 20130910 File:1 Introduction and Scope.docx

2 Guidance on Overlaps between RIM and SNOMED CT Semantics (41 pages)

2.1 Introduction
2.2 Attributes
2.3 ActRelationships
2.4 Participations
2.5 Context Conduction

Chapter Drafts
Updated 20130910 File:2 Guidance on Overlap between RIM and SNOMED CT Semantics.docx

3 Common Patterns (16 pages)

3.1 Introduction
3.2 Allergies and Adverse Reactions
3.3 Assessment Scale Results
3.4 Observation, Condition, Diagnosis, Concern
3.5 Family History
3.6 Medications and Immunizations

Chapter Drafts
Updated 20130910 File:3 Common Patterns.docx

4 Normal Forms (3 pages)

4.1 SNOMED CT Normal Forms
4.2 Transformations to Normal Forms

Chapter Drafts
Updated 20130910 File:4 Normal Forms.docx

5 SNOMED CT vocabulary domain constraints (9 pages)

5.1 Introduction
5.2 Approach to Value Set Constraint Specifications
5.3 Constraint Specifications

Chapter Drafts
Updated 20130910 File:5 SNOMED CT vocabulary domain constraints.docx

6 Glossary (36 Pages)

Chapter Drafts
Updated 20130910 File:Glossary.docx

Appendix A. General Options for Dealing with Potential Overlaps (5 pages)

Chapter Drafts
Updated 20130910 File:Appendix A.docx

Appendix B. References (36 pages)

Chapter Drafts
Updated 20130910 File:Appendix B.docx

Appendix C. Revision changes (2 pages)

Chapter Drafts
Updated 20130910 File:Appendix C.docx

Appendix D. SNOMED CT Open Issues (2 pages)

Chapter Drafts
Updated 20130910 File:Appendix D.docx

Appendix E. Detailed aspects of issues with a vocabulary specification formalism (13 pages)

Chapter Drafts
Updated 20130910 File:Appendix E.docx