Guidance on how to interpret the contents of this table can be found here

0. Observation
2. Observation.category
Control0..1
4. Observation.category.coding
Control1..1
6. Observation.category.coding.system
Pattern Valuehttp://terminology.hl7.org/CodeSystem/observation-category
8. Observation.category.coding.code
Pattern Valueimaging
10. Observation.subject
TypeReference(RareLink IPS Patient)
12. Observation.subject.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
Must Supporttrue
14. Observation.performer
16. Observation.performer.extension:dataAbsentReason
Slice NamedataAbsentReason
Control0..1
TypeExtension(Data Absent Reason) (Extension Type: code)
18. Observation.performer.extension:dataAbsentReason.value[x]
[x] NoteSeeChoice of Data Typesfor further information about how to use [x]
Pattern Valueunknown
20. Observation.interpretation
22. Observation.interpretation.coding
24. Observation.interpretation.coding.system
Pattern Valuehttp://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl
26. Observation.interpretation.coding.code
Must Supporttrue
28. Observation.method
30. Observation.method.coding
32. Observation.method.coding.system
Pattern Valuehttp://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl
34. Observation.method.coding.code
Must Supporttrue