US Core Implementation Guide
6.1.0-snapshot1 - STU6 United States of America flag

This page is part of the US Core (v6.1.0-snapshot1: STU6 Update) based on FHIR R4. The current version which supercedes this version is 6.0.0. For a full list of available versions, see the Directory of published versions

Resource Profile: US Core Observation Pregnancy Status Profile

Official URL: http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-pregnancystatus Version: 6.1.0-snapshot1
Active as of 2022-08-24 Computable Name: USCoreObservationPregnancyStatusProfile

Copyright/Legal: Used by permission of HL7 International, all rights reserved Creative Commons License

The US Core Pregnancy Status Observation Profile is based upon the core FHIR Observation Resource and implements the US Core Data for Interoperability (USCDI) v3 Pregnancy status requirements. This profile sets minimum expectations for the Observation resource to record, search, and fetch the “state or condition of being pregnant” associated with a patient to promote interoperability and adoption through common implementation. It 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.

Example Usage Scenarios:

The following are example usage scenarios for this profile:

  • Query for a patient’s pregnancy status
  • Record or update a past or present pregnancy status

Mandatory and Must Support Data Elements

The following data-elements must always be present (Mandatory definition) or must be supported if the data is present in the sending system (Must Support definition). They are presented below in a simple human-readable explanation. Profile specific guidance and examples are provided as well. The Formal Views below provides the formal summary, definitions, and terminology requirements.

Each Observation Must Have:

  1. a status
  2. a code for pregnancy status observation
  3. a patient
  4. when the observation occurred
  5. the pregnancy status

Each Observation Must Support:

  1. a category code of “social-history”

Profile Specific Implementation Guidance:

Usage:

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

This structure is derived from Observation

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationMeasurements and simple assertions
... status S1..1code(USCDI) registered | preliminary | final | amended +
... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
... code S1..1CodeableConcept(USCDI) Pregnancy Status
Required Pattern: At least the following
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
... subject S1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... effectiveDateTime S1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... valueCodeableConcept S1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)

doco Documentation for this format

Terminology Bindings (Differential)

PathConformanceValueSet
Observation.valueCodeableConceptpreferredUSCorePregnancyStatusCodes
NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationMeasurements and simple assertions
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... status ?!SΣ1..1code(USCDI) registered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
... code SΣ1..1CodeableConcept(USCDI) Pregnancy Status
Binding: LOINCCodes (example): Codes identifying names of simple observations.


Required Pattern: At least the following
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
... subject SΣ1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... Slices for effective[x] Σ1..1dateTimeClinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... Slices for value[x] ΣC1..1CodeableConceptActual result
Slice: Unordered, Closed by type:$this
.... value[x]:valueCodeableConcept SΣC1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.statusrequiredObservationStatus
Observation.categorypreferredObservationCategoryCodes
Observation.category:SocialHistorypreferredPattern: social-history
Observation.codeexamplePattern: LOINC code 82810-3
Observation.value[x]:valueCodeableConceptpreferredUSCorePregnancyStatusCodes

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorObservationIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorObservationIf the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
: contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4errorObservationIf a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
: contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5errorObservationIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceObservationA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-6errorObservationdataAbsentReason SHALL only be present if Observation.value[x] is not present
: dataAbsentReason.empty() or value.empty()
obs-7errorObservationIf Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present
: value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()
NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationMeasurements and simple assertions
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1code(USCDI) registered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... id0..1stringUnique id for inter-element referencing
...... extension0..*ExtensionAdditional content defined by implementations
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version0..1stringVersion of the system - if relevant
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
...... display0..1stringRepresentation defined by the system
...... userSelected0..1booleanIf this coding was chosen directly by the user
..... text0..1stringPlain text representation of the concept
... code SΣ1..1CodeableConcept(USCDI) Pregnancy Status
Binding: LOINCCodes (example): Codes identifying names of simple observations.


Required Pattern: At least the following
.... id0..1stringUnique id for inter-element referencing
.... extension0..*ExtensionAdditional content defined by implementations
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... version0..1stringVersion of the system - if relevant
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
..... display0..1stringRepresentation defined by the system
..... userSelected0..1booleanIf this coding was chosen directly by the user
.... text0..1stringPlain text representation of the concept
... subject SΣ1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... Slices for effective[x] Σ1..1dateTimeClinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... issued Σ0..1instantDate/Time this version was made available
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... Slices for value[x] ΣC1..1CodeableConceptActual result
Slice: Unordered, Closed by type:$this
.... value[x]:valueCodeableConcept SΣC1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)
... dataAbsentReason C0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite 0..1CodeableConceptObserved body part
Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

... method 0..1CodeableConceptHow it was done
Binding: ObservationMethods (example): Methods for simple observations.

... specimen 0..1Reference(Specimen)Specimen used for this observation
... device 0..1Reference(Device | DeviceMetric)(Measurement) Device
... referenceRange C0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C0..1SimpleQuantityLow Range, if relevant
.... high C0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember Σ0..*Reference(Observation | QuestionnaireResponse | MolecularSequence)Related resource that belongs to the Observation group
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINCCodes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
.... dataAbsentReason C0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
Observation.statusrequiredObservationStatus
Observation.categorypreferredObservationCategoryCodes
Observation.category:SocialHistorypreferredPattern: social-history
Observation.codeexamplePattern: LOINC code 82810-3
Observation.value[x]:valueCodeableConceptpreferredUSCorePregnancyStatusCodes
Observation.dataAbsentReasonextensibleDataAbsentReason
Observation.interpretationextensibleObservationInterpretationCodes
Observation.bodySiteexampleSNOMEDCTBodyStructures
Observation.methodexampleObservationMethods
Observation.referenceRange.typepreferredObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesToexampleObservationReferenceRangeAppliesToCodes
Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReasonextensibleDataAbsentReason
Observation.component.interpretationextensibleObservationInterpretationCodes

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-3errorObservation.referenceRangeMust have at least a low or a high or text
: low.exists() or high.exists() or text.exists()

This structure is derived from Observation

Summary

Mandatory: 3 elements
Must-Support: 7 elements

Structures

This structure refers to these other structures:

Slices

This structure defines the following Slices:

  • The element Observation.category is sliced based on the value of pattern:$this

Differential View

This structure is derived from Observation

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationMeasurements and simple assertions
... status S1..1code(USCDI) registered | preliminary | final | amended +
... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
... code S1..1CodeableConcept(USCDI) Pregnancy Status
Required Pattern: At least the following
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
... subject S1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... effectiveDateTime S1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... valueCodeableConcept S1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)

doco Documentation for this format

Terminology Bindings (Differential)

PathConformanceValueSet
Observation.valueCodeableConceptpreferredUSCorePregnancyStatusCodes

Key Elements View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationMeasurements and simple assertions
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... status ?!SΣ1..1code(USCDI) registered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
... code SΣ1..1CodeableConcept(USCDI) Pregnancy Status
Binding: LOINCCodes (example): Codes identifying names of simple observations.


Required Pattern: At least the following
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
... subject SΣ1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... Slices for effective[x] Σ1..1dateTimeClinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... Slices for value[x] ΣC1..1CodeableConceptActual result
Slice: Unordered, Closed by type:$this
.... value[x]:valueCodeableConcept SΣC1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.statusrequiredObservationStatus
Observation.categorypreferredObservationCategoryCodes
Observation.category:SocialHistorypreferredPattern: social-history
Observation.codeexamplePattern: LOINC code 82810-3
Observation.value[x]:valueCodeableConceptpreferredUSCorePregnancyStatusCodes

Constraints

IdGradePath(s)DetailsRequirements
dom-2errorObservationIf the resource is contained in another resource, it SHALL NOT contain nested Resources
: contained.contained.empty()
dom-3errorObservationIf the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
: contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4errorObservationIf a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
: contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5errorObservationIf a resource is contained in another resource, it SHALL NOT have a security label
: contained.meta.security.empty()
dom-6best practiceObservationA resource should have narrative for robust management
: text.`div`.exists()
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-6errorObservationdataAbsentReason SHALL only be present if Observation.value[x] is not present
: dataAbsentReason.empty() or value.empty()
obs-7errorObservationIf Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present
: value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()

Snapshot View

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C0..*ObservationMeasurements and simple assertions
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: CommonLanguages (preferred): A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy)Part of referenced event
... status ?!SΣ1..1code(USCDI) registered | preliminary | final | amended +
Binding: ObservationStatus (required): Codes providing the status of an observation.

... Slices for category S0..*CodeableConcept(USCDI) Classification of type of observation
Slice: Unordered, Open by pattern:$this
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.


.... category:SocialHistory S0..1CodeableConcept(USCDI) Classification of type of observation
Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.



Required Pattern: At least the following
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
...... id0..1stringUnique id for inter-element referencing
...... extension0..*ExtensionAdditional content defined by implementations
...... system1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version0..1stringVersion of the system - if relevant
...... code1..1codeSymbol in syntax defined by the system
Fixed Value: social-history
...... display0..1stringRepresentation defined by the system
...... userSelected0..1booleanIf this coding was chosen directly by the user
..... text0..1stringPlain text representation of the concept
... code SΣ1..1CodeableConcept(USCDI) Pregnancy Status
Binding: LOINCCodes (example): Codes identifying names of simple observations.


Required Pattern: At least the following
.... id0..1stringUnique id for inter-element referencing
.... extension0..*ExtensionAdditional content defined by implementations
.... coding1..*CodingCode defined by a terminology system
Fixed Value: (complex)
..... id0..1stringUnique id for inter-element referencing
..... extension0..*ExtensionAdditional content defined by implementations
..... system1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
..... version0..1stringVersion of the system - if relevant
..... code1..1codeSymbol in syntax defined by the system
Fixed Value: 82810-3
..... display0..1stringRepresentation defined by the system
..... userSelected0..1booleanIf this coding was chosen directly by the user
.... text0..1stringPlain text representation of the concept
... subject SΣ1..1Reference(US Core Patient Profile)(USCDI) Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... Slices for effective[x] Σ1..1dateTimeClinically relevant time/time-period for observation
Slice: Unordered, Closed by type:$this
.... effective[x]:effectiveDateTime SΣ1..1dateTime(USCDI) Clinically relevant time/time-period for observation
... issued Σ0..1instantDate/Time this version was made available
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... Slices for value[x] ΣC1..1CodeableConceptActual result
Slice: Unordered, Closed by type:$this
.... value[x]:valueCodeableConcept SΣC1..1CodeableConcept(USCDI) Coded Responses from Pregnancy Status Value Set
Binding: US Core Pregnancy Status Codes (preferred)
... dataAbsentReason C0..1CodeableConceptWhy the result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite 0..1CodeableConceptObserved body part
Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.

... method 0..1CodeableConceptHow it was done
Binding: ObservationMethods (example): Methods for simple observations.

... specimen 0..1Reference(Specimen)Specimen used for this observation
... device 0..1Reference(Device | DeviceMetric)(Measurement) Device
... referenceRange C0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C0..1SimpleQuantityLow Range, if relevant
.... high C0..1SimpleQuantityHigh Range, if relevant
.... type 0..1CodeableConceptReference range qualifier
Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text 0..1stringText based reference range in an observation
... hasMember Σ0..*Reference(Observation | QuestionnaireResponse | MolecularSequence)Related resource that belongs to the Observation group
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence)Related measurements the observation is made from
... component Σ0..*BackboneElementComponent results
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code Σ1..1CodeableConceptType of component observation (code / type)
Binding: LOINCCodes (example): Codes identifying names of simple observations.

.... value[x] Σ0..1Actual component result
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
.... dataAbsentReason C0..1CodeableConceptWhy the component result is missing
Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc.
Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format

Terminology Bindings

PathConformanceValueSet / Code
Observation.languagepreferredCommonLanguages
Additional Bindings Purpose
AllLanguages Max Binding
Observation.statusrequiredObservationStatus
Observation.categorypreferredObservationCategoryCodes
Observation.category:SocialHistorypreferredPattern: social-history
Observation.codeexamplePattern: LOINC code 82810-3
Observation.value[x]:valueCodeableConceptpreferredUSCorePregnancyStatusCodes
Observation.dataAbsentReasonextensibleDataAbsentReason
Observation.interpretationextensibleObservationInterpretationCodes
Observation.bodySiteexampleSNOMEDCTBodyStructures
Observation.methodexampleObservationMethods
Observation.referenceRange.typepreferredObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesToexampleObservationReferenceRangeAppliesToCodes
Observation.component.codeexampleLOINCCodes (a valid code from LOINC)
Observation.component.dataAbsentReasonextensibleDataAbsentReason
Observation.component.interpretationextensibleObservationInterpretationCodes

Constraints

IdGradePath(s)DetailsRequirements
ele-1error**ALL** elementsAll FHIR elements must have a @value or children
: hasValue() or (children().count() > id.count())
ext-1error**ALL** extensionsMust have either extensions or value[x], not both
: extension.exists() != value.exists()
obs-3errorObservation.referenceRangeMust have at least a low or a high or text
: low.exists() or high.exists() or text.exists()

This structure is derived from Observation

Summary

Mandatory: 3 elements
Must-Support: 7 elements

Structures

This structure refers to these other structures:

Slices

This structure defines the following Slices:

  • The element Observation.category is sliced based on the value of pattern:$this

 

Other representations of profile: CSV, Excel, Schematron

Notes:

Quick Start

Below is an overview of the required Server RESTful FHIR interactions for this profile - for example, search and read operations - when supporting the US Core interactions to access this profile’s information (Profile Support + Interaction Support). Note that systems that support only US Core Profiles (Profile Only Support) are not required to support these interactions. See the US Core Server CapabilityStatement for a complete list of supported RESTful interactions for this IG.

  • The syntax used to describe the interactions is described here.

  • Servers providing access to social history data can use US Core SMART Scopes for:
    • resource level scopes (for example, patient/Observation.rs)
    • granular scopes (for example, patient.Observation.rs?category=http://terminology.hl7.org/3.1.0/CodeSystem-observation-category.html|social-history).
  • See the General Requirements section for additional rules and expectations when a server requires status parameters.
  • See the General Guidance section for additional guidance on searching for multiple patients.

Quick Start

Below is an overview of the required Server RESTful FHIR interactions for this profile - for example, search and read operations - when supporting the US Core interactions to access this profile’s information (Profile Support + Interaction Support). Note that systems that support only US Core Profiles (Profile Only Support) are not required to support these interactions. See the US Core Server CapabilityStatement for a complete list of supported RESTful interactions for this IG.

  • The syntax used to describe the interactions is described here.

  • Servers providing access to social history data can use US Core SMART Scopes for:
    • resource level scopes (for example, patient/Observation.rs)
    • granular scopes (for example, patient.Observation.rs?category=http://terminology.hl7.org/3.1.0/CodeSystem-observation-category.html|social-history).
  • See the General Requirements section for additional rules and expectations when a server requires status parameters.
  • See the General Guidance section for additional guidance on searching for multiple patients.

Mandatory Search Parameters:

The following search parameters and search parameter combinations SHALL be supported:

  1. SHALL support searching using the combination of the patient and category search parameters:

    GET [base]/Observation?patient={Type/}[id]&category={system|}social-history

    Example:

    1. GET [base]/Observation?patient=1134281&category=social-history

    Implementation Notes: Fetches a bundle of all Observation resources for the specified patient and a category code = social-history (how to search by reference and how to search by token)

  2. SHALL support searching using the combination of the patient and code search parameters:
    • including optional support for OR search on code (e.g.code={system|}[code],{system|}[code],...)

    GET [base]/Observation?patient={Type/}[id]&code={system|}[code]{,{system|}[code],...}

    Example:

    1. GET [base]/Observation?patient=1134281&code=http://loinc.org|82810-3

    Implementation Notes: Fetches a bundle of all Observation resources for the specified patient and observation code(s). SHOULD support search by multiple report codes. The Observation code parameter searches `Observation.code only. (how to search by reference and how to search by token)

  3. SHALL support searching using the combination of the patient and category and date search parameters:
    • including support for these date comparators: gt,lt,ge,le
    • including optional support for AND search on date (e.g.date=[date]&date=[date]]&...)

    GET [base]/Observation?patient={Type/}[id]&category={system|}social-history&date={gt|lt|ge|le}[date]{&date={gt|lt|ge|le}[date]&...}

    Example:

    1. GET [base]Observation?patient=555580&category=social-history&date=ge2018-03-14T00:00:00Z

    Implementation Notes: Fetches a bundle of all Observation resources for the specified patient and date and a category code = social-history (how to search by reference and how to search by token and how to search by date)

Optional Search Parameters:

The following search parameter combinations SHOULD be supported:

  1. SHOULD support searching using the combination of the patient and category and status search parameters:
    • including support for OR search on status (e.g.status={system|}[code],{system|}[code],...)

    GET [base]/Observation?patient={Type/}[id]&category={system|}social-history&status={system|}[code]{,{system|}[code],...}

    Example:

    1. GET [base]/Observation?patient=1134281&category=social-history&status=final

    Implementation Notes: Fetches a bundle of all Observation resources for the specified patient and category = social-history and status (how to search by reference and how to search by token)

  2. SHOULD support searching using the combination of the patient and code and date search parameters:
    • including optional support for OR search on code (e.g.code={system|}[code],{system|}[code],...)
    • including support for these date comparators: gt,lt,ge,le
    • including optional support for AND search on date (e.g.date=[date]&date=[date]]&...)

    GET [base]/Observation?patient={Type/}[id]&code={system|}[code]{,{system|}[code],...}&date={gt|lt|ge|le}[date]{&date={gt|lt|ge|le}[date]&...}

    Example:

    1. GET [base]Observation?patient=555580&code=http://loinc.org|82810-3&date=ge2019-01-01T00:00:00Z

    Implementation Notes: Fetches a bundle of all Observation resources for the specified patient and date and report code(s). SHOULD support search by multiple report codes. (how to search by reference and how to search by token and how to search by date)