description: StructureDefinition for Observation Resources representing measurement data coming from a medical device where the measurement itself is an enumerated human readable string.
package_name: hl7.fhir.uv.phd
derivation: constraint
name: PhdStringEnumerationObservation
type: Observation
elements:
  value:
    short: Human readable text string
    choices: [valueString]
    index: 1
  valueString: {type: string, short: Human readable text string, choiceOf: value, index: 2}
  dataAbsentReason:
    short: Populated when the Measurement-Status or an Enum-Observed-Value status indicates invalid, not unavailable, or msmt ongoing
    index: 3
    elements:
      coding:
        index: 4
        slicing:
          rules: open
          discriminator:
          - {path: system, type: value}
          min: 1
          slices:
            FhirDefault:
              match: {system: 'http://terminology.hl7.org/CodeSystem/data-absent-reason'}
              schema:
                _required: true
                index: 5
                elements:
                  system:
                    pattern: {type: Uri, value: 'http://terminology.hl7.org/CodeSystem/data-absent-reason'}
                    index: 6
                  code: {index: 7}
                required: [system, code]
    required: [coding]
package_version: 2.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/uv/phd/StructureDefinition/PhdStringEnumerationObservation
base: http://hl7.org/fhir/uv/phd/StructureDefinition/PhdBaseObservation
version: 2.0.0-ballot
required: [valueString, value]