description: A specific offset time in milliseconds from the stated time in the Observation.appliesDateTime to allow for representation of sequential recording  of sampled data from the same lead or data stream.  For example, an ECG recorder may record sequentially 3 leads four time to receive 12-lead ECG, see [ISO 22077](https://www.iso.org/obp/ui/#iso:std:61871:en).
package_name: hl7.fhir.uv.extensions
derivation: constraint
name: ObsTimeOffset
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-timeOffset'}
    type: uri
    index: 1
  value:
    choices: [valueInteger]
    index: 3
  valueInteger: {type: integer, choiceOf: value, index: 4}
package_version: 5.3.0-ballot
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-timeOffset
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot
required: [value, valueInteger]