| Path | Conformance | ValueSet | URI |
| Observation.status | required | ObservationStatushttp://hl7.org/fhir/ValueSet/observation-status|4.0.1from the FHIR Standard | |
| Observation.category | preferred | ObservationCategoryCodeshttp://hl7.org/fhir/ValueSet/observation-categoryfrom the FHIR Standard | |
| Observation.code | example | LOINCCodes (a valid code from LOINC)http://hl7.org/fhir/ValueSet/observation-codesfrom the FHIR Standard | |
| Observation.code.coding | required | VitalSignshttp://hl7.org/fhir/ValueSet/observation-vitalsignresultfrom the FHIR Standard | |
| Observation.value[x]:valueQuantity.comparator | required | QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1from the FHIR Standard | |
| Observation.interpretation | extensible | ObservationInterpretationCodeshttp://hl7.org/fhir/ValueSet/observation-interpretationfrom the FHIR Standard | |
| Observation.method | example | ObservationMethodshttp://hl7.org/fhir/ValueSet/observation-methodsfrom the FHIR Standard |