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HITSP C80 / C83 Briefing and Update

HITSP C80 / C83 Briefing and Update. John S. Carter, Apelon, Inc. VHA CHIO Standards and Interoperability. http://www.xml.com/pub/a/2007/04/11/a-smoother-change-to-version-20.html. Briefing Goals. Describe the role these constructs play in HITSP

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HITSP C80 / C83 Briefing and Update

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  1. HITSP C80 / C83 Briefing and Update John S. Carter, Apelon, Inc. VHA CHIO Standards and Interoperability

  2. http://www.xml.com/pub/a/2007/04/11/a-smoother-change-to-version-20.htmlhttp://www.xml.com/pub/a/2007/04/11/a-smoother-change-to-version-20.html

  3. Briefing Goals • Describe • the role these constructs play in HITSP • the role of controlled vocabulary in practical HIT implementations • the current state of these constructs during public comment period • process challenges and future goals • opportunities for further work

  4. Where do C80 and C83 fit? Implementation Specification (IS) Selected Components (healthcare data) Transaction Packages Transactions T66 Terminology Services (IHE SVS) C83 Content Modules, Constraints TN902 Definitions C80 Vocabulary, Value Sets TN901 Definitions

  5. C48 Referral Summary

  6. C83 Person(al) Information: Gender

  7. Concept-oriented Standardized, agreed-upon Enduring Simplifiers Controlled Vocabulary Key Principles

  8. TN901 – Vocabulary Meta-model

  9. C80 Administrative Gender

  10. C80 HL7v2 Administrative Gender

  11. C80 HL7v3 CDA Administrative Gender

  12. SNOMED CT Owned by IHTSDO Produced by CAP Distributed by NLM Problem List Subset Developed by Kaiser and VA experts Distributed by NCI Inside C80: Vocabulary Source So who’s in charge???

  13. Inside C80: OIDs • Object Identifiers • Hierarchical • Assigned locally by registered authorities http://www.alvestrand.no/objectid/top.html

  14. Inside C80: Versions • Vocabulary versioning is tricky • Numbered (LOINC 2.24) • Dated (SNOMED Jan. 2008, ICD-9-CM 2008) • Parent document (HL7 v2.5.1) • ??? Zip codes • Value set versioning is an unsolved question • As far as that goes, value set definition is an unsolved question

  15. Current State • C83 includes ~50 Content Module sections • C80 includes ~100 Value Set definitions • Maybe this is 20% of all HITSP value sets • Many technical details remain to iron out

  16. The Ugly • Word !!! • Version-itis (e.g., HL7v2 and HL7v3) may lead to inconsistent, non-interoperable data

  17. The Bad • SDOs themselves often are a little fuzzy on vocabulary • Different HITSP work groups may be working in parallel, possibly reinventing the wheel • No repository available

  18. The Good • C80 and C83 provide a great start • Make HITSP constructs more implementable • Improve the underlying standards • Offer a path to a more rigorous construct development process in the future • Keith Boone, Don Van Syckle, Sarah Ryan • VHA • HITSP Community

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