VSAC Support Center
The Value Set Authority Center (VSAC) is a repository and authoring tool for public value sets created by external programs. The VSAC is provided by the National Library of Medicine (NLM), in collaboration with the Office of the National Coordinator for Health Information Technology (ONC) and CMS. Subscribe to the VSAC Updates listserv for VSAC announcements about new content releases and functionality updates.
How to Use VSAC
For VSAC Authors and Stewards
- Author Registration
- Author/Steward Group Management
- Author/Steward Roles
- Authoring Best Practices
- Change Value Set Ownership
- Code System Inclusion Policy
- Code Systems and Tools
- Convert to Intensional
- COVID-19 Provisional Codes
- COVID-19 Value Sets in VSAC: no login needed
- Creating Value Sets
- Direct Reference Code API URLs
- Keyword Management
- Purpose Statement Bulk Editing NEW!
- Track Value Set Changes NEW!
- Updating Value Sets
- Value Set Audit Log NEW!
- Value Set Life Cycle
- Value Set Status: Review and Maintenance NEW!
- Value Set Usage Summary NEW!
Last Reviewed: December 14, 2022