Where can you get information on QDM-related formatting conventions for developing CQL logic?

QDM does not define formatting conventions for CQL logic. Developers should use QDM documentation for guidance on QDM datatypes and attributes.

For conventions and best practices related to writing CQL, see the CQL Formatting and Usage Wiki. The Wiki provides guidance that promotes consistency, readability, maintainability, and reuse of CQL expressions.

CMS also publishes an annual QDM-based CQL Style Guide, which applies these conventions to QDM-based eCQMs used in CMS quality reporting programs and promotes consistent use of libraries, aliases, definitions, functions, and other CQL components. Developers creating eCQMs for CMS programs should follow these best practices.