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About EVS

Since 1997, NCI Enterprise Vocabulary Services (EVS) has provided terminology content, tools, and services to accurately code, analyze and share cancer and biomedical research, clinical and public health information. EVS works with many partners to develop, license and publish terminology, jointly develop software tools, and support harmonization and shared standards. EVS provides the foundational layer for NCI's informatics infrastructure, and plays an important role in federal and international standards efforts (see EVS Use and Collaborations ).

These EVS Wiki pages provide extensive details on these and other EVS resources, tools and services.

EVS Terminology

EVS creates, compiles, and cross-maps biomedical terminology needed by NCI and its community. EVS publishes NCI Thesaurus (NCIt) as its core reference terminology and biomedical ontology. EVS also makes available standalone versions of other terminologies and ontologies of special interest, and provides access with extensive cross-mappings to more than 70 terminologies in the NCI Metathesaurus.

Making these terminology resources more easily available, mapping between them, harmonizing coding standards, and promoting agreement on best practices, are all core EVS priorities.

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