Observation Profile¶
| Canonical | ../StructureDefinition/nexus-emr-core-observation |
|---|---|
| Status | draft · 1.26.0 |
| Base | Observation (constraint) |
| Source | FSH · JSON |
Nexus EMR profile for the Observation resource, based on CA-Core. Represents measurements, tests, and simple assertions originating from source EMRs for aggregation.
Elements / Differential
What this profile constrains beyond Observation. Anything not listed is unchanged from the base; muted type/cardinality values are the base's, shown for context.
| Element | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| Observation | Nexus EMR Observation Core i Invariants: nexus-note-extension-not-where-native |
|||
| meta | 0..1 | Meta | ||
| source | S | 0..1 | uri | Identifies EMR instance & pipeline version the resource came from i |
| text | S | 0..1 | Narrative | Narrative i |
| extension | 0..* | Extension | i Slicing: value:url (open) |
|
| extension:preventionStatus | 0..1 | Extension(Prevention Status Extension) | Prevention/screening status (completed externally, refused, ...) i | |
| extension:reviewed | 0..1 | Extension(Reviewed) | Review acknowledgement (absent = unreviewed) i | |
| extension:preventionResultDetail | 0..1 | Extension(Prevention Result Detail Extension) | Detail accompanying a screening result (independent of value[x]) i | |
| extension:preventionInstructions | 0..1 | Extension(Prevention Instructions Extension) | Instructions given to the patient for this prevention i | |
| identifier | S | 0..* | Identifier | Business identifier(s) for observation i |
| system | 1..1 | uri | i | |
| value | 1..1 | string | i | |
| status | S | 1..1 | code | Where the result is in its lifecycle i Binding: observation-status ( required) |
| category | S | 1..1 | CodeableConcept | Classification of type of observation i Binding: observation-category ( required) |
| code | S | 1..1 | CodeableConcept | Observation type with raw code support i |
| coding | 0..* | Coding | i Slicing: pattern:system (open) |
|
| coding:loinc | S | 0..1 | Coding | LOINC observation code i |
| system | 1..1 | uri | LOINC system URI i Fixed: http://loinc.org |
|
| code | 1..1 | code | LOINC code | |
| text | S | 1..1 | string | Human-readable observation type (required) i |
| subject | S | 1..1 | Reference(Patient Profile) | i |
| encounter | S | 0..1 | Reference(Encounter Profile) | Healthcare event during which observation was made i |
| effective[x] | S | 1..1 | dateTime, Period | i |
| performer | S | 0..* | Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) | Who performed the observation; repeat for an outside performer i |
| value[x] | S | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Actual observation result i |
| interpretation | S | 0..* | CodeableConcept | i Binding: observation-interpretation ( extensible) |
| note | S | 0..* | Annotation | Clinical comments on the observation -- one whole comment per repeat i |
| referenceRange | S | 0..* | BackboneElement | Reference range for observation i |
| low | S | 0..1 | Quantity(SimpleQuantity) | |
| high | S | 0..1 | Quantity(SimpleQuantity) | |
| text | S | 0..1 | string | |
| component | S | 0..* | BackboneElement | Component observations i |
| code | S | 1..1 | CodeableConcept | Type of component observation i |
| value[x] | S | 0..1 | Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period | Component observation result i |