Negation Requirements

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Project Information

Scope Statement

Scope: Provide a set of classified requirements for the representation of negated clinical data, which standards developers can use to confirm coverage of requirements, demonstrate recommended patterns, and identify out-of-specification patterns.

Need: The ways current interoperability standards handle negation, or propose to do so,

• are inconsistent & may not support transformations among different standards
• may not support representation requirements
• may not support computation requirements

Having a consistently articulated set of clinical requirements will allow standards designers to confirm support for these requirements and to provide clear guidance on recommended and prohibited patterns.

Meeting Information

• Link to call project meeting schedule (Summer 2017)
• Link to call: Fall 2017 planning in process
• Minutes

Plan

1. Complete collection of content requirements (examples) - Done
2. Classify content examples - in process
3. Collect consumption requirements - in process
   1. UI
   2. Query
   3. CDS
4. Classify consumption requirements -
5. Collect compatibility requirements
   1. V2, RIM, FHIR, CIMI, DL
6. Identify other requirements
7. Create outline
8. Draft guidelines
   1. Review requirements & guidelines with design teams
9. Draft document - First draft by September WG; identify roles for review & revision
10. Revise document - submit NIB in October

Issues/Hot Topics

1. TermInfo currently responding to FHIR request regarding PC requirement for "no known allergies" in Allergy resource.
2. CIMI on threshold of addressing a pattern for absent findings, other 'negation' topics.
   1. Pattern follows SCT: evaluations of observables may have negative results; Assertions may have 'absent' context values

Project Documents

• Document for ballot
• May ballot commments
• Negation Requirements Statement page
• Use Cases
• Negation Principles
• Negation Glossary
• Negation Sources
• Negation Outreach
• DAM

Categorization

[[Category:Active_Projects]]