statement

A statement is one of the executable declarations in a CQL library. It may be an expression definition, a context switch, or a function definition.

Examples

Expression definition

define "Has Diabetes":
  exists [Condition: "Diabetes Mellitus"]

Context switch

context Patient

Function definition

define function "Age At"(birthDate Date) returns Integer:
  AgeInYearsAt(birthDate)

Railroad Diagram

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statement
  : expressionDefinition
  | contextDefinition
  | functionDefinition
  ;