Extensions for Using Data Elements from FHIR STU3 in FHIR R4
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Extensions for Using Data Elements from FHIR STU3 in FHIR R4 - Downloaded Version null See the Directory of published versions

CodeSystem: ObservationRelationshipType

Official URL: http://hl7.org/fhir/observation-relationshiptypes Version: 3.0.2
Standards status: Trial-use Maturity Level: 5 Responsible: Orders and Observations Computable Name: ObservationRelationshipType

Codes specifying how two observations are related.

This Code system is referenced in the content logical definition of the following value sets:

This case-sensitive code system http://hl7.org/fhir/observation-relationshiptypes defines the following codes:

CodeDisplayDefinition
has-member Has Member This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.
derived-from Derived From The target resource (Observation or QuestionnaireResponse) is part of the information from which this observation value is derived. (e.g. calculated anion gap, Apgar score) NOTE: "derived-from" is the only logical choice when referencing QuestionnaireResponse.
sequel-to Sequel To This observation follows the target observation (e.g. timed tests such as Glucose Tolerance Test).
replaces Replaces This observation replaces a previous observation (i.e. a revised value). The target observation is now obsolete.
qualified-by Qualified By The value of the target observation qualifies (refines) the semantics of the source observation (e.g. a lipemia measure target from a plasma measure).
interfered-by Interfered By The value of the target observation interferes (degrades quality, or prevents valid observation) with the semantics of the source observation (e.g. a hemolysis measure target from a plasma potassium measure, which has no value).