Screening for Alcohol Misuse - Component A of a Composite Measure

{
  "resourceType" : "Measure",
  "id" : "component-a-example",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">Screening for Alcohol Misuse\n    \n      <p>This measure example is used to illustrate how a composite measure can be constructured. This measure is one component of the composite measure.</p>\n    </div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cqi"
  }],
  "name" : "ScreeningForAlcoholMisuse",
  "title" : "Screening for Alcohol Misuse",
  "status" : "draft",
  "publisher" : "HL7 International / Clinical Quality Information",
  "contact" : [{
    "telecom" : [{
      "system" : "url"
    }]
  }],
  "description" : "Screening for Alcohol Misuse",
  "scoring" : {
    "coding" : [{
      "code" : "proportion"
    }]
  },
  "group" : [{
    "id" : "Main",
    "population" : [{
      "code" : {
        "coding" : [{
          "code" : "initial-population"
        }]
      },
      "criteria" : {
        "language" : "text/cql",
        "expression" : "Initial Population"
      }
    },
    {
      "code" : {
        "coding" : [{
          "code" : "denominator"
        }]
      },
      "criteria" : {
        "language" : "text/cql",
        "expression" : "Denominator"
      }
    },
    {
      "code" : {
        "coding" : [{
          "code" : "numerator"
        }]
      },
      "criteria" : {
        "language" : "text/cql",
        "expression" : "Numerator"
      }
    }]
  }]
}