Concept

Within clinical information, multiple terminologies can often be used to code for the same concept. As such, CQL defines a top-level construct called Concept that allows for multiple codes to be specified.

The Concept type has the following elements:

Field	Card.	Type and Description
codes	`1..1`	`List<Code>` The list of equivalent codes representing the concept.
display	`0..1`	`String` A description of the concept.