Mappings for the observation resource.
| Observation | Observation[classCode=OBS, moodCode=EVN] |
| identifier | id |
| status | status Amended & Final are differentiated by whether it is the subject of a ControlAct event with a type of "revise" |
| category | .outboundRelationship[typeCode="COMP].target[classCode="LIST", moodCode="EVN"].code |
| code | code |
| subject | participation[typeCode=SBJ] |
| encounter | inboundRelationship[typeCode=COMP].source[classCode=ENC, moodCode=EVN] |
| effective[x] | effectiveTime |
| issued | participation[typeCode=AUT].time |
| performer | participation[typeCode=PRF] |
| value[x] | value |
| dataAbsentReason | value.nullFlavor |
| interpretation | interpretationCode |
| comments | subjectOf.observationEvent[code="annotation"].value |
| bodySite | targetSiteCode |
| method | methodCode |
| specimen | participation[typeCode=SPC].specimen |
| device | participation[typeCode=DEV] |
| referenceRange | outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN] |
| low | value:IVL_PQ.low |
| high | value:IVL_PQ.high |
| meaning | interpretationCode |
| age | outboundRelationship[typeCode=PRCN].targetObservationCriterion[code="age"].value |
| text | value:ST |
| related | outBoundRelationship |
| type | .typeCode |
| target | .targetObservation |
| component | outBoundRelationship[typeCode=COMP] |
| code | code |
| value[x] | value |
| dataAbsentReason | value.nullFlavor |
| referenceRange | outboundRelationship[typeCode=REFV]/target[classCode=OBS, moodCode=EVN] |
| Observation | OBX |
| identifier | OBX.21 |
| status | OBX-11-observation result status |
| category | |
| code | OBX-3-observation identifier |
| subject | PID-3-patient ID list |
| encounter | PV1 |
| effective[x] | OBX-14-date/time of the observation, and/or OBX-19 after v2.4 (depends on who observation made) |
| issued | OBR.22 (or MSH.7), or perhaps OBX-19 (depends on who observation made) |
| performer | OBX.15 / (Practitioner) OBX-16-responsible observer, PRT-5-participation person:PRT-4-participation='RO' / (Device) OBX-18-equipment instance identifier , PRT-10-participation device:PRT-4-participation='EQUIP' / (Organization) OBX-23-performing organization name, PRT-8-participation organization:PRT-4-participation='PO' |
| value[x] | OBX.2, OBX.5, OBX.6 |
| dataAbsentReason | N/A |
| interpretation | OBX-8-interpretation codes |
| comments | NTE.3 (partner NTE to OBX, or sometimes another (child?) OBX) |
| bodySite | OBX-20-observation site |
| method | OBX-17-observation method |
| specimen | SPM segment |
| device | OBX-17 / PRT -10 |
| referenceRange | OBX.7 |
| low | OBX-7-references range |
| high | OBX-7-references range |
| meaning | OBX-10-nature of abnormal test? |
| age | |
| text | OBX-7-references range |
| related | Relationships established by OBX-4 usage |
| type | N/A |
| target | |
| component | |
| code | OBX-3-observation identifier |
| value[x] | OBX.2, OBX.5, OBX.6 |
| dataAbsentReason | N/A |
| referenceRange | OBX.7 |