http://hl7.org/fhir/StructureDefinition/observation-deviceCode|5.2.0

A code representing the the type of device used for this observation. This extension is deprecated, as there are alternate ways to represent this information through the use of Observation.device and the Device.type element.
element_idtypes
Extension
Extension.extension
Extension.url
Extension.value[x]
Extension
Extension.id
Extension.extension
Extension.url
Extension.value[x]