"mRS 3-6 at 90 days" is an outcome, defined by a CQL expression, used in expressing what an Evidence is about.

<type value="person"/> <membership value="definitional"/> <characteristic> <code> <coding> <system value="http://snomed.info/sct"/> <code value="260905004"/> <display value="Condition"/> </coding> </code> <valueExpression> <description value="mRS 3-6"/> <language value="text/cql"/> <expression value="["Observation": code in "75859-9|LOINC"] mRS where mRS.value between 3 and 6"/> </valueExpression> <exclude value="false"/> <description value="mRS 3-6 at 90 days"/> <timing> <contextCode> <coding> <system value="http://hl7.org/fhir/evidence-variable-event"/> <code value="study-start"/> <display value="Study Start"/> </coding> </contextCode> <offsetDuration> <value value="90"/> <unit value="days"/> <system value="http://unitsofmeasure.org"/> <code value="d"/> </offsetDuration> </timing> </characteristic> </Group> </contained> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="cds"/> </extension> <name value="ModifiedRankinScaleScore36At90DaysAfterTreatment"/> <title value="Modified Rankin Scale score 3-6 at 90 days after treatment"/> <status value="draft"/> <publisher value="HL7 International / Clinical Decision Support"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/dss"/> </telecom> </contact> <description value="Modified Rankin Scale score 3-6 at 90 days after treatment"/> <actual value="true"/> <definition> <reference> <reference value="#Definition-Group"/> </reference> </definition> <handling/> </EvidenceVariable>