<?xml version=“1.0” encoding=“UTF-8”?> <Observation xmlns=“hl7.org/fhir”>
<id value="date-lastmp"/> <meta> <security> <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/> <code value="HTEST"/> <display value="test health data"/> </security> </meta> <status value="final"/> <category> <coding> <system value="http://terminology.hl7.org/CodeSystem/observation-category"/> <code value="survey"/> <display value="Survey"/> </coding> <text value="AOE"/> </category> <code> <coding> <system value="http://loinc.org"/> <code value="8665-2"/> <display value="Date last menstrual period"/> </coding> <text value="Date last menstrual period"/> </code> <subject> <reference value="Patient/pat2"/> </subject> <effectiveDateTime value="2016-01-24"/> <valueDateTime value="2016-12-30"/>
</Observation>