This value set includes codes based on the following rules:

This value set excludes codes based on the following rules:

<status value="active"/> <experimental value="false"/> <date value="2014-03-26"/> <publisher value="Health Level Seven International"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org"/> </telecom> <telecom> <system value="email"/> <value value="hq@HL7.org"/> </telecom> </contact> <description value="Identifies the kinds of observations that can be performed"/> <copyright value="This material derives from the HL7 Terminology THO. THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-ActCode"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="_ObservationType"/> </filter> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationDiagnosisTypes"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-LogicalObservationIdentifierNamesAndCodes"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationSeriesType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationSequenceType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-AnnotationType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationIntoleranceType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationIssueTriggerCodedObservationType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-MedicationObservationType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-ObservationActContextAgeType"/> </include> <include> <valueSet value="http://terminology.hl7.org/ValueSet/v3-GeneticObservationType"/> </include> <exclude> <system value="http://terminology.hl7.org/CodeSystem/v3-ActCode"/> <concept> <code value="_ObservationType"/> </concept> </exclude> <exclude> <system value="http://terminology.hl7.org/CodeSystem/v3-ActCode"/> <concept> <code value="_ObservationIssueTriggerCodedObservationType"/> </concept> </exclude> <exclude> <system value="http://terminology.hl7.org/CodeSystem/v3-ActCode"/> <concept> <code value="_GeneticObservationType"/> </concept> </exclude> </compose> </ValueSet>