http://hl7.org/fhir/StructureDefinition/observation-delta|4.0.1

The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.
description: The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.
derivation: constraint
name: delta
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-delta'}
    index: 1
  value:
    choices: []
    index: 3
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-delta
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.0.1
required: [value]