description: This extension stores the original value of an element from a source that was modified by a processing system (e.g., NHSNLink) to make it usable for NHSN. Modification may include changing logically invalid data, changing data that does not match specification requirements (this modification is used sparingly, for specific instances only), or normalizing data.
package_name: gov.cdc.nhsn.dqm
derivation: constraint
name: OriginalElementValue
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/link-original-element-value-extension'}
    index: 1
  value:
    choices: []
    index: 3
package_version: 1.0.0
extensions: {}
class: extension
kind: complex-type
url: http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/link-original-element-value-extension
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 1.0.0
required: [value]