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

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.
description: '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.'
derivation: constraint
name: CopyNumberEvent
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-geneticsCopyNumberEvent'}
    index: 1
  value:
    choices: []
    index: 3
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-geneticsCopyNumberEvent
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0
required: [value]