http://hl7.org/fhir/StructureDefinition/observation-geneticsCopyNumberEvent|4.0.1
A variation that increases or decreases the copy number of a given region ([SO:0001019](http://www.sequenceontology.org/browser/current_svn/term/SO:0001019)). Values: amplification/deletion/LOH.
Type: Extension (a.k.a: http://hl7.org/fhir/StructureDefinition/Extension)
Type dependencies: 2
Elements
extension: Extension
value[x]: CodeableConcept