http://hl7.org/fhir/StructureDefinition/observation-geneticsGenomicSourceClass|5.2.0

Source of sample used to determine the sequence in sequencing lab -- germline, somatic, prenatal. LOINC Code: ([48002-0](http://loinc.org/48002-0)).

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	CodeableConcept
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	CodeableConcept