description: 'A region (or regions) that includes all of the sequence elements necessary to encode a functional transcript. A gene may include regulatory regions, transcribed regions and/or other functional sequence regions ([SO:0000704](http://www.sequenceontology.org/browser/current_svn/term/SO:0000704)). This element is the official gene symbol approved by the HGNC, which is a short abbreviated form of the gene name ([HGNC](http://www.genenames.org)). LOINC Code: ([48018-6](http://loinc.org/48018-6)).'
package_name: hl7.fhir.core
derivation: constraint
name: Gene
type: Extension
elements:
  extension: {index: 0}
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-geneticsGene'}
    index: 1
  valueCodeableConcept:
    type: CodeableConcept
    binding: {strength: preferred, valueSet: 'http://hl7.org/fhir/ValueSet/genenames'}
    index: 2
package_version: 3.5.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-geneticsGene
base: http://hl7.org/fhir/StructureDefinition/Extension
version: null