description: This US Core FHIR Profile is meant to capture any “simple” observations that are not otherwise covered by other US Core Observation profiles. It represents any type of observation that is not classified as vital signs, laboratory, imaging, or other more specific observation types. This profile promotes interoperability and adoption through common implementation by setting minimum expectations for the Observation resource to record, search, and retrieve observations such as a clinical observation or assertion about a patient's health status or other general observations. This profile identifies which core elements, extensions, vocabularies, and value sets **SHALL** be present in the resource and constrains the way the elements are used when using this profile. It provides the floor for standards development for specific use cases.
package_name: hl7.fhir.us.core
derivation: constraint
name: USCoreSimpleObservationProfile
type: Observation
elements:
  category:
    short: (USCDI) Classification of  type of observation
    mustSupport: true
    index: 1
    slicing:
      rules: open
      discriminator:
      - {path: $this, type: pattern}
      min: 1
      slices:
        us-core:
          match: {}
          schema:
            short: (USCDI) Classification of  type of observation
            binding: {strength: required, valueSet: 'http://hl7.org/fhir/us/core/ValueSet/us-core-simple-observation-category'}
            mustSupport: true
            index: 2
          min: 0
  derivedFrom:
    type: Reference
    short: (USCDI) US Core Profiles or other resource the observation is made from
    mustSupport: false
    refers: ['http://hl7.org/fhir/StructureDefinition/ImagingStudy', 'http://hl7.org/fhir/StructureDefinition/Media', 'http://hl7.org/fhir/StructureDefinition/MolecularSequence', 'http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-documentreference', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-questionnaireresponse']
    index: 25
  valueTime: {type: time, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 22}
  valueQuantity: {type: Quantity, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 14}
  value:
    short: (USCDI) Actual result
    mustSupport: true
    choices: [valueQuantity, valueCodeableConcept, valueString, valueBoolean, valueInteger, valueRange, valueRatio, valueSampledData, valueTime, valueDateTime, valuePeriod]
    index: 13
  valueString: {type: string, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 16}
  valueRatio: {type: Ratio, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 20}
  valueBoolean: {type: boolean, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 17}
  valueDateTime: {type: dateTime, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 23}
  valueSampledData: {type: SampledData, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 21}
  effectiveDateTime: {short: (USCDI) Clinically relevant time/time-period for observation, type: dateTime, mustSupport: true, choiceOf: effective, index: 7}
  status: {short: (USCDI) registered | preliminary | final | amended +, mustSupport: true, index: 0}
  effective:
    short: (USCDI) Clinically relevant time/time-period for observation
    mustSupport: true
    choices: [effectiveDateTime, effectivePeriod, effectiveTiming, effectiveInstant]
    index: 6
  code: {short: (USCDI) Type of observation (code / type), mustSupport: true, index: 3}
  effectiveTiming: {short: (USCDI) Clinically relevant time/time-period for observation, type: Timing, mustSupport: true, choiceOf: effective, index: 9}
  valueCodeableConcept: {type: CodeableConcept, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 15}
  valuePeriod: {type: Period, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 24}
  effectiveInstant: {short: (USCDI) Clinically relevant time/time-period for observation, type: instant, mustSupport: true, choiceOf: effective, index: 10}
  valueRange: {type: Range, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 19}
  valueInteger: {type: integer, short: (USCDI) Actual result, mustSupport: true, choiceOf: value, index: 18}
  subject:
    type: Reference
    short: (USCDI) Who and/or what the observation is about
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient']
    index: 4
  performer:
    type: Reference
    short: (USCDI) Who is responsible for the observation
    mustSupport: true
    refers: ['http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-careteam', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-relatedperson']
    index: 11
  effectivePeriod: {short: (USCDI) Clinically relevant time/time-period for observation, type: Period, mustSupport: true, choiceOf: effective, index: 8}
package_version: 6.1.0-snapshot1
class: profile
kind: resource
url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-simple-observation
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 6.1.0-snapshot1
required: [subject, category]