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Value Set Guidance

Value Sets

Value sets are lists of codes and corresponding terms from standard clinical vocabularies (such as Current Procedural Terminology, SNOMED CT, RxNorm, and Logical Observation Identifiers Names and Codes), that define clinical concepts to support effective and interoperable health information exchange.

The Value Set Authority Center, hosted by the National Library of Medicine, serves as the central repository for the Centers for Medicare & Medicaid Services electronic clinical quality measure value sets.

This guidance is intended for value set authors. The guidance provides direction on the best practices for authoring and maintaining value sets for quality measures, electronic clinical quality improvement, and other applications.

The Value Set Workgroup (VSW) has suggested guidelines and principles to follow to name a value set. Documents related to value set use and best practices, commonly used by measure developers, measure stewards, and value set owners or are specific to the VSW:

The VSW's review focused on identifying guidance given in each document and comparing for similarities and differences. Based on the review, the VSW suggested principles came primarily from the CMS MMS Blueprint content and the VSAC Support Center. They were determined to be the most well-articulated best practices in value set naming and have formed the framework for VSW Value Set naming best practices and descriptions.

Last Updated: Mar 21, 2023