Structured Data Capture
4.0.0 - STU 4 International flag

This page is part of the Structured Data Capture FHIR IG (v4.0.0: STU 4) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

CodeSystem: Observation Extract Relationship Codes

Official URL: http://hl7.org/fhir/uv/sdc/CodeSystem/observation-extract-relationship Version: 4.0.0
Standards status: Trial-use Active as of 2026-03-24 Maturity Level: 4 Computable Name: ObservationExtractRelationshipCodes
Other Identifiers: OID:2.16.840.1.113883.4.642.40.17.16.8

Defines the codes used to specify the relationship type in the ObservationExtractExtension.

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

This case-sensitive code system http://hl7.org/fhir/uv/sdc/CodeSystem/observation-extract-relationship defines the following codes:

CodeDisplayDefinition
component Component The child item will be extracted as a component of the parent observation
member Member The child item will be extracted as a separate Observation and the parent Observation will point to it as a hasMember
derived Derived The child item will be extracted as a separate Observation and the child will have a derivedFrom relationship to the parent. (Typically the child answer will be a calculated value in this case.)
independent Independent The child item will be extracted as a separate Observation and there will be no relationship asserted between parent and child

Description of the above table(s).