{
"resourceType": "Observation", "id": "date-lastmp", "status": "final", "category": [ { "coding": [ { "system": "http://terminology.hl7.org/CodeSystem/observation-category", "code": "survey", "display": "Survey" } ], "text": "AOE" } ], "code": { "coding": [ { "system": "http://loinc.org", "code": "8665-2", "display": "Date last menstrual period" } ], "text": "Date last menstrual period" }, "subject": { "reference": "Patient/pat2" }, "effectiveDateTime": "2016-01-24", "valueDateTime": "2016-12-30", "meta": { "tag": [ { "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason", "code": "HTEST", "display": "test health data" } ] }
}