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.r3
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-tc1
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-tc1
required: [value, valueInteger]