description: Observation profile for CDR (Clinical Data Repository) with additional extensions and constraints
package_name: dot.cdr-implementation-guide
derivation: constraint
name: CDRObservation
type: Observation
elements:
  referenceRange: {short: Observation reference range, index: 13}
  value:
    short: Observation value
    choices: []
    index: 11
  extension:
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: null
      slices:
        confidence:
          match: {url: null}
          schema: {type: Extension, short: Observation confidence level, url: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation-confidence', index: 1}
          min: 0
          max: 1
        source:
          match: {url: null}
          schema: {type: Extension, short: Observation source, url: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation-source', index: 2}
          min: 0
          max: 1
  status: {short: Observation status, index: 3}
  effective:
    short: Observation effective date/time
    constraint:
      cdr-observation-effective-invariant: {human: Observation effective date/time must not be in the future, source: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation', severity: warning, expression: effective.ofType(dateTime) <= now() or effective.ofType(Period).start <= now()}
    choices: []
    index: 7
  code:
    short: Observation code
    constraint:
      cdr-observation-code-invariant: {human: Observation code must have a coding with a system and code, source: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation', severity: error, expression: code.coding.all(system.exists() and code.exists())}
    index: 4
  issued: {short: Observation issued date/time, index: 8}
  subject: {short: Observation subject, index: 5}
  performer: {short: Observation performer, index: 9}
  dataAbsentReason: {short: Data absent reason, index: 12}
package_version: 1.0.0
extensions:
  confidence: {url: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation-confidence', min: 0, max: 1, type: Extension, short: Observation confidence level, index: 1}
  source: {url: 'http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation-source', min: 0, max: 1, type: Extension, short: Observation source, index: 2}
class: profile
kind: resource
url: http://example.org/fhir/ImplementationGuide/hl7.fhir.cdr/StructureDefinition/cdr-observation
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 1.0.0
required: [effective, subject]