FHIR to OMOP FHIR IG
2.0.0-ballot - STU 1 Ballot
FHIR to OMOP FHIR IG
2.0.0-ballot - STU 1 Ballot
FHIR to OMOP FHIR IG, published by HL7 International / Biomedical Research and Regulation. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-omop-ig/ and changes regularly. See the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 2 |
XML representation of the Observation logical model.
<StructureDefinition xmlns="http://hl7.org/fhir">
<id value="Observation"/>
<language value="en"/>
<text>
<status value="extensions"/>
<div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: StructureDefinition Observation</b></p><table border="0" cellpadding="0" cellspacing="0" class="xhtTableBorder0"><tr class="xhtRowBorder1"><th scope="col" style="" class="hierarchy xhtCellBorder0"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="The logical name of the element">Name</a></th><th scope="col" style="" class="hierarchy xhtCellBorder0"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Information about the use of the element">Flags</a></th><th scope="col" style="" class="hierarchy xhtCellBorder0"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Minimum and Maximum # of times the element can appear in the instance">Card.</a></th><th scope="col" style="; width: 100px" class="hierarchy xhtCellBorder0"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Reference to the type of the element">Type</a></th><th scope="col" style="" class="hierarchy xhtCellBorder0"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Additional information about the element">Description & Constraints</a><span style="float: right"><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/></a></span></th></tr><tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck1.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_element.gif" alt="" style="background-color: white; background-color: inherit" title="Element" class="hierarchy"/> <a href="StructureDefinition-Observation-definitions.html#Observation" title="The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, family history, etc. are recorded here.">Observation</a><a name="Observation"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0"><span class="xhtPieceDeEmphasized">0</span><span class="xhtPieceDeEmphasized">..</span><span class="xhtPieceDeEmphasized">*</span></td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/types.html#Base">Base</a></td><td style="" class="hierarchy xhtCellBorder0">Observation OMOP Table<br/><span class="xhtPieceBold">Instances of this type can be the target of a Reference</span></td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-id" title="Observation Identifier">observation_id</a><a name="Observation.observation-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">1..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#integer">integer</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Identifier</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.person-id" title="The PERSON_ID of the Person for whom the Observation is recorded. This may be a system generated code.">person_id</a><a name="Observation.person-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">1..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#integer">integer</a></td><td style="" class="hierarchy xhtCellBorder0">Person</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-concept-id" title="The OBSERVATION_CONCEPT_ID field is recommended for primary use in analyses, and must be used for network studies.">observation_concept_id</a><a name="Observation.observation-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">1..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Observation</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-date" title="The date of the Observation. Depending on what the Observation represents this could be the date of a lab test, the date of a survey, or the date a patient's family history was taken.">observation_date</a><a name="Observation.observation-date"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">1..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#date">date</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Date</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-datetime" title="Observation Datetime">observation_datetime</a><a name="Observation.observation-datetime"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#dateTime">dateTime</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Datetime</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-type-concept-id" title="This field can be used to determine the provenance of the Observation record, as in whether the measurement was from an EHR system, insurance claim, registry, or other sources.">observation_type_concept_id</a><a name="Observation.observation-type-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">1..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Type</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.value-as-number" title="This is the numerical value of the Result of the Observation, if applicable and available. It is not expected that all Observations will have numeric results, rather, this field is here to house values should they exist.">value_as_number</a><a name="Observation.value-as-number"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#decimal">decimal</a></td><td style="" class="hierarchy xhtCellBorder0">Value as Number</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.value-as-string" title="This is the categorical value of the Result of the Observation, if applicable and available.">value_as_string</a><a name="Observation.value-as-string"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Value as String</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.value-as-concept-id" title="It is possible that some records destined for the Observation table have two clinical ideas represented in one source code. This is common with ICD10 codes that describe a family history of some Condition, for example. In OMOP the Vocabulary breaks these two clinical ideas into two codes; one becomes the OBSERVATION_CONCEPT_ID and the other becomes the VALUE_AS_CONCEPT_ID. It is important when using the Observation table to keep this possibility in mind and to examine the VALUE_AS_CONCEPT_ID field for relevant information.">value_as_concept_id</a><a name="Observation.value-as-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Value as Concept</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.qualifier-concept-id" title="This field contains all attributes specifying the clinical fact further, such as as degrees, severities, drug-drug interaction alerts etc.">qualifier_concept_id</a><a name="Observation.qualifier-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Qualifier</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.unit-concept-id" title="There is currently no recommended unit for individual observation concepts. UNIT_SOURCE_VALUES should be mapped to a Standard Concept in the Unit domain that best represents the unit as given in the source data.">unit_concept_id</a><a name="Observation.unit-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Unit</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.provider-id" title="The provider associated with the observation record, e.g. the provider who ordered the test or the provider who recorded the result.">provider_id</a><a name="Observation.provider-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#integer">integer</a></td><td style="" class="hierarchy xhtCellBorder0">Provider</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.visit-occurrence-id" title="The visit during which the Observation occurred.">visit_occurrence_id</a><a name="Observation.visit-occurrence-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#integer">integer</a></td><td style="" class="hierarchy xhtCellBorder0">Visit Occurence</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.visit-detail-id" title="The VISIT_DETAIL record during which the Observation occurred. For example, if the Person was in the ICU at the time the VISIT_OCCURRENCE record would reflect the overall hospital stay and the VISIT_DETAIL record would reflect the ICU stay during the hospital visit.">visit_detail_id</a><a name="Observation.visit-detail-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#integer">integer</a></td><td style="" class="hierarchy xhtCellBorder0">Visit Detail</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-source-value" title="This field houses the verbatim value from the source data representing the Observation that occurred. For example, this could be an ICD10 or Read code.">observation_source_value</a><a name="Observation.observation-source-value"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Source Value</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-source-concept-id" title="This is the concept representing the OBSERVATION_SOURCE_VALUE and may not necessarily be standard. This field is discouraged from use in analysis because it is not required to contain Standard Concepts that are used across the OHDSI community, and should only be used when Standard Concepts do not adequately represent the source detail for the Observation necessary for a given analytic use case. Consider using OBSERVATION_CONCEPT_ID instead to enable standardized analytics that can be consistent across the network.">observation_source_concept_id</a><a name="Observation.observation-source-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Source</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.unit-source-value" title="This field houses the verbatim value from the source data representing the unit of the Observation that occurred.">unit_source_value</a><a name="Observation.unit-source-value"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Unit Source Value</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.qualifier-source-value" title="This field houses the verbatim value from the source data representing the qualifier of the Observation that occurred.">qualifier_source_value</a><a name="Observation.qualifier-source-value"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Qualifier Source Value</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.value-source-value" title="This field houses the verbatim result value of the Observation from the source data. Do not get confused with the Observation_source_value which captures source value of the observation mapped to observation_concept_id. This field is the observation result value from the source.">value_source_value</a><a name="Observation.value-source-value"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Value Source Value</td></tr>
<tr class="xhtRowBorder0 xhtRowEven"><td style="background-image: url(tbl_bck10.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: white; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.observation-event-id" title="If the Observation record is related to another record in the database, this field is the primary key of the linked record.">observation_event_id</a><a name="Observation.observation-event-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#string">string</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Event</td></tr>
<tr class="xhtRowBorder0 xhtRowOdd"><td style="background-image: url(tbl_bck00.png)" class="hierarchy xhtCellBorder0 xhtCellNoWrap"><img src="tbl_spacer.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="tbl_vjoin_end.png" alt="" style="background-color: inherit" class="hierarchy"/><img src="icon_primitive.png" alt="" style="background-color: #F7F7F7; background-color: inherit" title="Primitive Data Type" class="hierarchy"/> <span style="position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0" class="sr-only">Observation.</span><a href="StructureDefinition-Observation-definitions.html#Observation.obs-event-field-concept-id" title="If the Observation record is related to another record in the database, this field is the CONCEPT_ID that identifies which table the primary key of the linked record came from.">obs_event_field_concept_id</a><a name="Observation.obs-event-field-concept-id"> </a></td><td style="" class="hierarchy xhtCellBorder0"/><td style="" class="hierarchy xhtCellBorder0">0..1</td><td style="" class="hierarchy xhtCellBorder0"><a href="http://hl7.org/fhir/R5/datatypes.html#code">code</a></td><td style="" class="hierarchy xhtCellBorder0">Observation Event Field Concept</td></tr>
<tr><td colspan="5" class="hierarchy"><br/><a href="https://build.fhir.org/ig/FHIR/ig-guidance/readingIgs.html#table-views" title="Legend for this format"><img src="data:image/png;base64,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" alt="doco" style="background-color: inherit"/> Documentation for this format</a></td></tr></table></div>
</text>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics">
<valueCode value="can-be-target"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
<valueCode value="brr"/>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
<valueInteger value="2">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical
value="http://hl7.org/fhir/uv/omop/ImplementationGuide/hl7.fhir.uv.omop"/>
</extension>
</valueInteger>
</extension>
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="trial-use">
<extension
url="http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom">
<valueCanonical
value="http://hl7.org/fhir/uv/omop/ImplementationGuide/hl7.fhir.uv.omop"/>
</extension>
</valueCode>
</extension>
<url value="http://hl7.org/fhir/uv/omop/StructureDefinition/Observation"/>
<identifier>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.40.77.42.17"/>
</identifier>
<version value="2.0.0-ballot"/>
<name value="Observation"/>
<title value="Observation OMOP Table"/>
<status value="active"/>
<date value="2026-11-06T00:33:48+00:00"/>
<publisher value="HL7 International / Biomedical Research and Regulation"/>
<contact>
<name value="HL7 International / Biomedical Research and Regulation"/>
<telecom>
<system value="url"/>
<value value="http://www.hl7.org/Special/committees/rcrim"/>
</telecom>
</contact>
<description
value="The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, family history, etc. are recorded here."/>
<jurisdiction>
<coding>
<system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
<code value="001"/>
<display value="World"/>
</coding>
</jurisdiction>
<fhirVersion value="5.0.0"/>
<mapping>
<identity value="rim"/>
<uri value="http://hl7.org/v3"/>
<name value="RIM Mapping"/>
</mapping>
<kind value="logical"/>
<abstract value="false"/>
<type value="http://hl7.org/fhir/uv/omop/StructureDefinition/Observation"/>
<baseDefinition value="http://hl7.org/fhir/StructureDefinition/Base"/>
<derivation value="specialization"/>
<snapshot>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version">
<valueString value="5.0.0"/>
</extension>
<element id="Observation">
<path value="Observation"/>
<short value="Observation OMOP Table"/>
<definition
value="The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, family history, etc. are recorded here."/>
<min value="0"/>
<max value="*"/>
<base>
<path value="Base"/>
<min value="0"/>
<max value="*"/>
</base>
<isModifier value="false"/>
<mapping>
<identity value="rim"/>
<map value="n/a"/>
</mapping>
</element>
<element id="Observation.observation-id">
<path value="Observation.observation_id"/>
<short value="Observation Identifier"/>
<definition value="Observation Identifier"/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Observation.observation_id"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.person-id">
<path value="Observation.person_id"/>
<short value="Person"/>
<definition
value="The PERSON_ID of the Person for whom the Observation is recorded. This may be a system generated code."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Observation.person_id"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.observation-concept-id">
<path value="Observation.observation_concept_id"/>
<short value="Observation"/>
<definition
value="The OBSERVATION_CONCEPT_ID field is recommended for primary use in analyses, and must be used for network studies."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Observation.observation_concept_id"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.observation-date">
<path value="Observation.observation_date"/>
<short value="Observation Date"/>
<definition
value="The date of the Observation. Depending on what the Observation represents this could be the date of a lab test, the date of a survey, or the date a patient's family history was taken."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Observation.observation_date"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="date"/>
</type>
</element>
<element id="Observation.observation-datetime">
<path value="Observation.observation_datetime"/>
<short value="Observation Datetime"/>
<definition value="Observation Datetime"/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.observation_datetime"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="dateTime"/>
</type>
</element>
<element id="Observation.observation-type-concept-id">
<path value="Observation.observation_type_concept_id"/>
<short value="Observation Type"/>
<definition
value="This field can be used to determine the provenance of the Observation record, as in whether the measurement was from an EHR system, insurance claim, registry, or other sources."/>
<min value="1"/>
<max value="1"/>
<base>
<path value="Observation.observation_type_concept_id"/>
<min value="1"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.value-as-number">
<path value="Observation.value_as_number"/>
<short value="Value as Number"/>
<definition
value="This is the numerical value of the Result of the Observation, if applicable and available. It is not expected that all Observations will have numeric results, rather, this field is here to house values should they exist."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.value_as_number"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="decimal"/>
</type>
</element>
<element id="Observation.value-as-string">
<path value="Observation.value_as_string"/>
<short value="Value as String"/>
<definition
value="This is the categorical value of the Result of the Observation, if applicable and available."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.value_as_string"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.value-as-concept-id">
<path value="Observation.value_as_concept_id"/>
<short value="Value as Concept"/>
<definition
value="It is possible that some records destined for the Observation table have two clinical ideas represented in one source code. This is common with ICD10 codes that describe a family history of some Condition, for example. In OMOP the Vocabulary breaks these two clinical ideas into two codes; one becomes the OBSERVATION_CONCEPT_ID and the other becomes the VALUE_AS_CONCEPT_ID. It is important when using the Observation table to keep this possibility in mind and to examine the VALUE_AS_CONCEPT_ID field for relevant information."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.value_as_concept_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.qualifier-concept-id">
<path value="Observation.qualifier_concept_id"/>
<short value="Qualifier"/>
<definition
value="This field contains all attributes specifying the clinical fact further, such as as degrees, severities, drug-drug interaction alerts etc."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.qualifier_concept_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.unit-concept-id">
<path value="Observation.unit_concept_id"/>
<short value="Unit"/>
<definition
value="There is currently no recommended unit for individual observation concepts. UNIT_SOURCE_VALUES should be mapped to a Standard Concept in the Unit domain that best represents the unit as given in the source data."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.unit_concept_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.provider-id">
<path value="Observation.provider_id"/>
<short value="Provider"/>
<definition
value="The provider associated with the observation record, e.g. the provider who ordered the test or the provider who recorded the result."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.provider_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.visit-occurrence-id">
<path value="Observation.visit_occurrence_id"/>
<short value="Visit Occurence"/>
<definition value="The visit during which the Observation occurred."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.visit_occurrence_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.visit-detail-id">
<path value="Observation.visit_detail_id"/>
<short value="Visit Detail"/>
<definition
value="The VISIT_DETAIL record during which the Observation occurred. For example, if the Person was in the ICU at the time the VISIT_OCCURRENCE record would reflect the overall hospital stay and the VISIT_DETAIL record would reflect the ICU stay during the hospital visit."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.visit_detail_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.observation-source-value">
<path value="Observation.observation_source_value"/>
<short value="Observation Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the Observation that occurred. For example, this could be an ICD10 or Read code."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.observation_source_value"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.observation-source-concept-id">
<path value="Observation.observation_source_concept_id"/>
<short value="Observation Source"/>
<definition
value="This is the concept representing the OBSERVATION_SOURCE_VALUE and may not necessarily be standard. This field is discouraged from use in analysis because it is not required to contain Standard Concepts that are used across the OHDSI community, and should only be used when Standard Concepts do not adequately represent the source detail for the Observation necessary for a given analytic use case. Consider using OBSERVATION_CONCEPT_ID instead to enable standardized analytics that can be consistent across the network."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.observation_source_concept_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.unit-source-value">
<path value="Observation.unit_source_value"/>
<short value="Unit Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the unit of the Observation that occurred."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.unit_source_value"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.qualifier-source-value">
<path value="Observation.qualifier_source_value"/>
<short value="Qualifier Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the qualifier of the Observation that occurred."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.qualifier_source_value"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.value-source-value">
<path value="Observation.value_source_value"/>
<short value="Value Source Value"/>
<definition
value="This field houses the verbatim result value of the Observation from the source data. Do not get confused with the Observation_source_value which captures source value of the observation mapped to observation_concept_id. This field is the observation result value from the source."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.value_source_value"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.observation-event-id">
<path value="Observation.observation_event_id"/>
<short value="Observation Event"/>
<definition
value="If the Observation record is related to another record in the database, this field is the primary key of the linked record."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.observation_event_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.obs-event-field-concept-id">
<path value="Observation.obs_event_field_concept_id"/>
<short value="Observation Event Field Concept"/>
<definition
value="If the Observation record is related to another record in the database, this field is the CONCEPT_ID that identifies which table the primary key of the linked record came from."/>
<min value="0"/>
<max value="1"/>
<base>
<path value="Observation.obs_event_field_concept_id"/>
<min value="0"/>
<max value="1"/>
</base>
<type>
<code value="code"/>
</type>
</element>
</snapshot>
<differential>
<element id="Observation">
<path value="Observation"/>
<short value="Observation OMOP Table"/>
<definition
value="The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, family history, etc. are recorded here."/>
</element>
<element id="Observation.observation-id">
<path value="Observation.observation_id"/>
<short value="Observation Identifier"/>
<definition value="Observation Identifier"/>
<min value="1"/>
<max value="1"/>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.person-id">
<path value="Observation.person_id"/>
<short value="Person"/>
<definition
value="The PERSON_ID of the Person for whom the Observation is recorded. This may be a system generated code."/>
<min value="1"/>
<max value="1"/>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.observation-concept-id">
<path value="Observation.observation_concept_id"/>
<short value="Observation"/>
<definition
value="The OBSERVATION_CONCEPT_ID field is recommended for primary use in analyses, and must be used for network studies."/>
<min value="1"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.observation-date">
<path value="Observation.observation_date"/>
<short value="Observation Date"/>
<definition
value="The date of the Observation. Depending on what the Observation represents this could be the date of a lab test, the date of a survey, or the date a patient's family history was taken."/>
<min value="1"/>
<max value="1"/>
<type>
<code value="date"/>
</type>
</element>
<element id="Observation.observation-datetime">
<path value="Observation.observation_datetime"/>
<short value="Observation Datetime"/>
<definition value="Observation Datetime"/>
<min value="0"/>
<max value="1"/>
<type>
<code value="dateTime"/>
</type>
</element>
<element id="Observation.observation-type-concept-id">
<path value="Observation.observation_type_concept_id"/>
<short value="Observation Type"/>
<definition
value="This field can be used to determine the provenance of the Observation record, as in whether the measurement was from an EHR system, insurance claim, registry, or other sources."/>
<min value="1"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.value-as-number">
<path value="Observation.value_as_number"/>
<short value="Value as Number"/>
<definition
value="This is the numerical value of the Result of the Observation, if applicable and available. It is not expected that all Observations will have numeric results, rather, this field is here to house values should they exist."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="decimal"/>
</type>
</element>
<element id="Observation.value-as-string">
<path value="Observation.value_as_string"/>
<short value="Value as String"/>
<definition
value="This is the categorical value of the Result of the Observation, if applicable and available."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.value-as-concept-id">
<path value="Observation.value_as_concept_id"/>
<short value="Value as Concept"/>
<definition
value="It is possible that some records destined for the Observation table have two clinical ideas represented in one source code. This is common with ICD10 codes that describe a family history of some Condition, for example. In OMOP the Vocabulary breaks these two clinical ideas into two codes; one becomes the OBSERVATION_CONCEPT_ID and the other becomes the VALUE_AS_CONCEPT_ID. It is important when using the Observation table to keep this possibility in mind and to examine the VALUE_AS_CONCEPT_ID field for relevant information."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.qualifier-concept-id">
<path value="Observation.qualifier_concept_id"/>
<short value="Qualifier"/>
<definition
value="This field contains all attributes specifying the clinical fact further, such as as degrees, severities, drug-drug interaction alerts etc."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.unit-concept-id">
<path value="Observation.unit_concept_id"/>
<short value="Unit"/>
<definition
value="There is currently no recommended unit for individual observation concepts. UNIT_SOURCE_VALUES should be mapped to a Standard Concept in the Unit domain that best represents the unit as given in the source data."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.provider-id">
<path value="Observation.provider_id"/>
<short value="Provider"/>
<definition
value="The provider associated with the observation record, e.g. the provider who ordered the test or the provider who recorded the result."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.visit-occurrence-id">
<path value="Observation.visit_occurrence_id"/>
<short value="Visit Occurence"/>
<definition value="The visit during which the Observation occurred."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.visit-detail-id">
<path value="Observation.visit_detail_id"/>
<short value="Visit Detail"/>
<definition
value="The VISIT_DETAIL record during which the Observation occurred. For example, if the Person was in the ICU at the time the VISIT_OCCURRENCE record would reflect the overall hospital stay and the VISIT_DETAIL record would reflect the ICU stay during the hospital visit."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="integer"/>
</type>
</element>
<element id="Observation.observation-source-value">
<path value="Observation.observation_source_value"/>
<short value="Observation Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the Observation that occurred. For example, this could be an ICD10 or Read code."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.observation-source-concept-id">
<path value="Observation.observation_source_concept_id"/>
<short value="Observation Source"/>
<definition
value="This is the concept representing the OBSERVATION_SOURCE_VALUE and may not necessarily be standard. This field is discouraged from use in analysis because it is not required to contain Standard Concepts that are used across the OHDSI community, and should only be used when Standard Concepts do not adequately represent the source detail for the Observation necessary for a given analytic use case. Consider using OBSERVATION_CONCEPT_ID instead to enable standardized analytics that can be consistent across the network."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
<element id="Observation.unit-source-value">
<path value="Observation.unit_source_value"/>
<short value="Unit Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the unit of the Observation that occurred."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.qualifier-source-value">
<path value="Observation.qualifier_source_value"/>
<short value="Qualifier Source Value"/>
<definition
value="This field houses the verbatim value from the source data representing the qualifier of the Observation that occurred."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.value-source-value">
<path value="Observation.value_source_value"/>
<short value="Value Source Value"/>
<definition
value="This field houses the verbatim result value of the Observation from the source data. Do not get confused with the Observation_source_value which captures source value of the observation mapped to observation_concept_id. This field is the observation result value from the source."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.observation-event-id">
<path value="Observation.observation_event_id"/>
<short value="Observation Event"/>
<definition
value="If the Observation record is related to another record in the database, this field is the primary key of the linked record."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="string"/>
</type>
</element>
<element id="Observation.obs-event-field-concept-id">
<path value="Observation.obs_event_field_concept_id"/>
<short value="Observation Event Field Concept"/>
<definition
value="If the Observation record is related to another record in the database, this field is the CONCEPT_ID that identifies which table the primary key of the linked record came from."/>
<min value="0"/>
<max value="1"/>
<type>
<code value="code"/>
</type>
</element>
</differential>
</StructureDefinition>
IG © 2023+ HL7 International / Biomedical Research and Regulation.
Package hl7.fhir.uv.omop#2.0.0-ballot based on FHIR 5.0.0.
Generated
2026-11-06
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