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Use Case
Enhanced SVSEnhanced SVS
Nikolay Lipskiy, MD, DrPH, Centers for Disease Control (CDC), USANikolay Lipskiy, MD, DrPH, Centers for Disease Control (CDC), USASundak Ganesan, MD, Northrop Grumman for CDCSundak Ganesan, MD, Northrop Grumman for CDC
Proposal discussionProposal discussionFebruary 1-4, 2010February 1-4, 2010
IT Infrastructure Planning CommitteeIT Infrastructure Planning Committee
Current SVS: Purpose
“This profile describes a mechanism of retrieving a Value Set from a Value Set Repository by a Value Set Consumer. ““The Sharing Value Sets (SVS) profile provides a means through which healthcare systems producing clinical or administrative data, such as diagnostic imaging equipment, laboratory reporting systems, primary care physician office EMR systems, or national healthcare record systems, can receive a common, uniform nomenclature managed centrally. “
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Current SVS: Existing Use Cases
21.3.2.2 Updating terminology codes for a medical and billing across systems
21.3.2.3 Consistent Encoding Terms for anatomical regions in imaging
21.3.2.4 Modification of a protocol code for a mammogram exam
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Enhanced SVS: Purpose
1) Registering
2) Updating
3) Retrieving
•Single Value Set
•Value Set Group/View
•Specific version (i.e., when a report was created)
1. Enhanced profile will describe a mechanism of
from a Value Set Repository by a Value Set Consumer
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Enhanced SVS: Purpose (cont)
2. Adding Value Set’s Group ID (and OID?) for:
2.1. Immunization Domain
2.2. Cancer registries Domain
2.3. Public Health Case Reporting (PHCR)
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*Value Set
GroupingVS Consumer VS Repository (PHIN
VADS)
VS Registry (HL7 OIDs Registry)
VS Source (i.e. Cancer Registry
Program)
Retrieve VS Version
Query/ Retrieve VS Version or Grouping Register/Update
VS
Enhanced SVS: Overview of the Process Flow (cont.)
Provide & Register /Update VS
Register /Update VS
Issues such as multiple registries, etc. need to be determined, as does the issue of whether the update should come from the VS Repository Actor or the VS Source actor. The diagrams show it coming from the Repository Actor.
Existing actors• Vocabulary Consumer• Value Set Repository
New actors •Value Set registry•Value Set Source
IT Infrastructure Planning CommitteeIT Infrastructure Planning Committee
Enhanced SVS: Use Cases
Use Case 0. (?-Sondra R. Renly)The Management of Clinical Document Vocabularies.
Current SVS: Can we extend existing case for this use case?
Use Case 1. The Management of Immunization Vocabularies. See proposed profile
Use Case 2. The Management of Cancer Vocabularies See proposed profile
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New Transactions
1. Provide and Register VocabularyThe management of value sets needs to be a distributed process allowing programs and vocabulary specialist the capability to create versions of value sets and groups. When code system updates take place a notification is necessary to see the relationship between the concepts and value sets that might be affected by those updates. An example would be the intrinsic value set of Microorganism that is derived from SNOMED.
Situations that may result in creating new value sets include: • addition of code to existing value set• removal of code from existing value set• creation of value set• removal of value set• creation/update/removal of value set groups
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New Transactions (Cont.)
2. Retrieving Data from Registry and Repository
Currently a consumer must know the OID of a value set to retrieve it from the Repository. A query will be specified to obtain OIDs of interest.
Possible queries:2.1. Query for a flat file that depicts a relationship between value set groupings 2.2. Query for a list of VS by subject category2.3. Query for a list of VS associated with specific template/document ID2.4. Query for a specific VS 2.5. Query for a specific VS group version (i.e., associated with a time stamp)
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Distributing Consistent Nomenclatures?
Current Status:
New Tasks Based on Adding new Transactions and Use Cases for Management Immunization and Cancer Vocabularies :
1) Additional nomenclatures for Value Set View and Value Set Group
2) Additional nomenclatures for Use Cases (Example on the next slide)
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