Observation

An Observation represents information gathered about a patient, including vital signs, laboratory data, and other assessments.

Overview

See the FHIR documentation for more information about Observation resources.

Mapped Concepts in HIEBus

  • LabObservation
  • Observation
  • DeviceDataContextWithDeviceDataPoints
  • DeviceDataPoint

Supported Interactions

Observation resources support the following interactions.

Search Parameters

When searching for Observation resources, the following search parameters are supported.

Name Type Prefixes
Modifiers
Can be Chained? Description
_id Token Logical id of this artifact.
_lastUpdated Date lt  le  gt  ge  When the resource version last changed.
category Token The classification of the type of observation - path Observation.category. Matches CareEvolution observations whose type is in a term subset with scope 'http://terminology.hl7.org/CodeSystem/observation-category' and name equal to one of the specified codes with system 'http://terminology.hl7.org/CodeSystem/observation-category'. Matches any CareEvolution lab observations if one of the specified category codes is 'laboratory' with system 'http://terminology.hl7.org/CodeSystem/observation-category'. So for example 'category=http://terminology.hl7.org/CodeSystem/observation-category|vital-signs' (and 'category=vital-signs') matches no lab observation and matches observations whose type is in the term subset with scope 'http://terminology.hl7.org/CodeSystem/observation-category' and name 'vital-signs'; 'category=http://terminology.hl7.org/CodeSystem/observation-category|laboratory' (and 'category=laboratory') matches any lab observation and no observations. Observations whose type is in the term subset with scope 'http://terminology.hl7.org/CodeSystem/observation-category' and name 'laboratory' are always excluded and 'category=http://snomed.info/sct|laboratory' matches no lab observation or observations. R4 version also includes all CareEvolution device data.
code Token :not  :in  :notin  The code of the observation type.
date Date ne  lt  le  gt  ge  sa  eb  ap  Obtained date/time. If the obtained element is a period, a date that falls in the period.
device Reference :missing  yes The Device that generated the observation data.
document-date Date ne  lt  le  gt  ge  sa  eb  ap  Searches for observation by their associated document date.
document-type Token :not  :in  :notin  Searches for observation by their associated document type.
encounter Reference :missing  yes Encounter related to the observation.
patient Reference yes The subject that the observation is about (if patient).
provenance-agent Reference yes Search by provenance, specified by its author (aka originator) Organization.
status Token The status of the observation.
subject Reference yes The subject that the observation is about.

Sortable Parameters

When searching Observation resources, it is possible to sort the returned values by the following search parameters.

  • date
  • _id

Only one sort parameter may be specified.

Supported Includes

When searching Observation resources, it is possible to include the resources referenced by the following field names.

  • Device
  • Encounter
  • Patient
  • Provenance Agent
  • Subject

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