Value Set Authority Center
Acronym: VSAC
The Value Set Authority Center (VSAC) is a tool suite developed by the National Library of Medicine to support the creation, maintenance, and retrieval of value sets. The VSAC serves as the central repository for the CMS electronic clinical quality measure value sets. The VSAC is located at: [https://vsac.nlm.nih.gov/](https://vsac.nlm.nih.gov/)