http://hl7.org/fhir/StructureDefinition/observation-deviceCode|4.0.1
A code representing the the type of device used for this observation. Should only be used if not implicit in the code found in `Observation.code`.
| type | destination |
|---|---|
| baseDefinition | http://hl7.org/fhir/StructureDefinition/Extension |
| type | http://hl7.org/fhir/StructureDefinition/Extension |
| Extension.value[x].type | http://hl7.org/fhir/StructureDefinition/CodeableConcept |
| Extension.value[x].binding.valueSet | http://hl7.org/fhir/ValueSet/device-kind |