This page is part of the Da Vinci Payer Data Exchange (v1.0.0: STU1) based on FHIR (HL7® FHIR® Standard) R4. The current version which supersedes this version is 2.1.0. For a full list of available versions, see the Directory of published versions
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The US Core IG profiles the Observation resource for a variety of purposes. For example:
The essential fields (Must Support or Cardinality greater than 0..*) to be provided in the US Core Observation resource are:
| R4 Element | Name | Cardinality | Type |
|---|---|---|---|
| Observation.status | status | 1..1 | code |
| Observation.category | category | 1..* | (Slice Definition) |
| Observation.category:VSCat | category:VSCat | 1..1 | CodeableConcept |
| Observation.category:VSCat.coding | coding | 1..* | Coding |
| Observation.category:VSCat.coding.system | system | 1..1 | uri |
| Observation.category:VSCat.coding.code | code | 1..1 | code |
| Observation.code | code | 1..1 | CodeableConcept |
| Observation.code.coding | coding | 1..* | Coding |
| Observation.code.coding.system | system | 1..1 | uri |
| Observation.code.coding.code | code | 1..1 | code |
| Observation.subject | subject | 1..1 | Reference(US Core Patient Profile) |
| Observation.effective[x] | effective[x] | 1..1 | |
| Observation.value[x] | value[x] | 0..1 | (Slice Definition) |
| Observation.value[x]:valueQuantity.value | value | 1..1 | decimal |
| Observation.value[x]:valueQuantity.unit | unit | 1..1 | string |
| Observation.value[x]:valueQuantity.system | system | 1..1 | uri |
| Observation.value[x]:valueQuantity.code | code | 1..1 | code |
| Observation.dataAbsentReason | dataAbsentReason | 0..1 | CodeableConcept |
| Observation.component | component | 0..* | BackboneElement |
| Observation.component.code | code | 1..1 | CodeableConcept |
| Observation.component.value[x] | value[x] | 0..1 | |
| Observation.dataAbsentReason | dataAbsentReason | 0..1 | CodeableConcept |
US Core Pediatric BMI for Age example: http://hl7.org/fhir/us/core/Observation-pediatric-bmi-example.html
{
"resourceType" : "Observation",
"id" : "pediatric-bmi-example",
"meta" : {
"profile" : [
"http://hl7.org/fhir/us/core/StructureDefinition/pediatric-bmi-for-age"
]
},
"text" : {
"status" : "generated",
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">Generated Narrative
id: pediatric-bmi-example
meta:
category: <span title=\"Codes: {http://terminology.hl7.org/CodeSystem/observation-category vital-signs}\">Vital Signs</span>
code: <span title=\"Codes: {http://loinc.org 59576-9}\">BMI</span>
subject: <a href=\"Patient-child-example.html\">Child Example. Generated Summary: id: child-example; Medical Record Number: 1032704 (USUAL); active; Child Example ; ph: 555-555-5555(HOME); gender: male; birthDate: 2016-01-15</a>
encounter: GP Visit
effective: 05/05/2019 5:12:29 AM
value: 65 %
note: CDC Males, 2-20 years Chart
</div>"
},
"status" : "final",
"category" : [
{
"coding" : [
{
"system" : "http://terminology.hl7.org/CodeSystem/observation-category",
"code" : "vital-signs",
"display" : "Vital Signs"
}
],
"text" : "Vital Signs"
}
],
"code" : {
"coding" : [
{
"system" : "http://loinc.org",
"code" : "59576-9",
"display" : "Body mass index (BMI) [Percentile] Per age and sex"
}
],
"text" : "BMI"
},
"subject" : {
"reference" : "Patient/child-example",
"display" : "Child Example"
},
"encounter" : {
"display" : "GP Visit"
},
"effectiveDateTime" : "2019-05-04T12:12:29-07:00",
"valueQuantity" : {
"value" : 65,
"unit" : "%",
"system" : "http://unitsofmeasure.org",
"code" : "%"
},
"note" : [
{
"text" : "CDC Males, 2-20 years Chart"
}
]
}
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