Vocabulary

The Vocab TC identifies, organizes and maintains coded vocabulary terms used in HL7 messages, to enable the exchange of clinical data and information so that sending and receiving systems have a shared, well defined, and unambiguous knowledge of the meaning of the data transferred.

HL7 Vocabulary TC Infrastructure and Assets

• See also: Harmonization Meetings
• Co-chair Responsibilities
• Vocabulary Facilitator Responsibilities

Documents

• Compositional Expressions in HL7 Value Sets
• HL7 Oid Symposium (INM and VOCAB)
• Vocabulary/TermInfo Compositional Expression
• NLM Contract
• 16 Points Document
• Vocabulary TC Decisions Document
• Domain and Value Set Definitions and Binding - "rescued" from valuesets.org
• Vocabulary Portion of Core Principles
• Policy on OIDs for SNOMED CT Extensions
• ISO TR 12310 Best Practices for Terminology Conformance Draft

Vocabulary

• HL7 Vocabulary Technical Correction Reporting
• Value Set binding
• CWE, CNE
• Revise existing Foundation Vocabulary Introduction
• Revise existing Background V3 Guide Vocabulary Section
• Revise existing Vocabulary section in HDF
• Discussion of Act.text vs. Act.code.originalText
• Marital Status Code Definitions
• Code Conformance Discussion
• Technical_Correction_of_Value_Sets_-_February_2009
• Concept Domain Naming Conventions
• Post-coordination Value Set Examples
• Special Vocabulary Considerations for Harmonization Processes
• Policy for Intensional Value Set Definitions based on LOINC

Vocabulary Tooling

• Vocabulary Tooling Requirements
• [Vocabulary Maintenance Language And Tool]

Specifications

HL7 Common Terminology Services (CTS).

IHTSDO / HL7 Collaboration

• HL7 / IHTSDO MOU
• IHTSDO Workbench Coordination

Projects

• HL7 proposed content change requests for SNOMED-CT to IHTSDO
• Evaluation of IHTSDO Workbench Information Model to the HL7 Vocabulary MIF Format
• Value Set Definition Standard Project
• Common Terminology Services - Release 2 (DSTU)
• Common Terminology Services - Release 2 (Normative)
• HL7 proposed guidance on use of displayName(V3 CD) and Text (V2.x CNE,CWE)
• Binding Syntax for Implementation Guides (joint with CGIT)
• HL7 proposed policy for submission of non-US english vocabulary
• TermInfo Project
  • Hot Topics being discussed:
    • How to represent negation.
    • Considering Changes in 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 ASSERTION pattern
    • Use of NULL flavors
    • Terminology binding
• HL7 Terminology Authority
• v2 code table project
  • V2 code table Project details on Project Insight (joint with CGIT)
  • Working Documents
• HL7 Vocabulary Facilitator Roles, Responsibilities and Tasks
• LOINC Clinical Document Ontology (joint with Structured Documents)

Vocabulary Tooling

• Proposed Vocabulary Tooling Requirements
• Risk Analysis of Tooling Migration Plans for Harmonization Vocabulary Maintenance