QI-Core Implementation Guide
8.0.0-ballot - STU 8 - ballot

QI-Core Implementation Guide, published by HL7 International / Clinical Quality Information. This guide is not an authorized publication; it is the continuous build for version 8.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-qi-core/ and changes regularly. See the Directory of published versions

## Resource Profile: QICore Observation Screening Assessment

Official URL: http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-observation-screening-assessment | Version: 8.0.0-ballot
Standards status: Trial-use Active as of 2022-04-20 | Maturity Level: 4 | Computable Name: QICoreObservationScreeningAssessment

The QI-Core Observation Screening Assessment Profile is based upon the US Core Observation Screening Assessment Profile which can be used to represent individual responses, panels of multi-question surveys, and multi-select responses to “check all that apply” questions. The QI-Core Observation Survey Profile sets minimum expectations for the Observation Resource to record, search, and fetch retrieve observations that represent the questions and responses to form/survey and defines the core set of elements and extensions for quality rule and measure authors.

"Must Have", "QI Elements" and "primary code path" are defined in the QI-Core Must Support section.
Must Have:

- category(survey): (QI) Classification of type of observation
- subject: (QI) Who and/or what the observation is about
- status: (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown
- category: (QI) Classification of type of observation
- code: (QI) Type of observation (code / type)

QI Elements:

- performer: (QI) Who is responsible for the observation
- category(screening-assessment): (QI) Classification of type of observation
- hasMember: (QI) Reference to panel or multi-select responses
- derivedFrom: (QI) Related Observations or QuestionnaireResponses that the observation is made from
- dataAbsentReason: (QI) Why the result is missing
- value[x]: (QI) Actual result
- effective[x]: (QI) Clinically relevant time/time-period for observation
- interpretation: (QI) High, low, normal, etc.

Primary code path: code
(PCPath) This element is the primary code path for this resource CQL Retrieve

### Guidance

Reference Guidance for use of the Observation Screening Assessment profile can be found here.

- See the Social Determinants of Health (SDOH) Guidance Page for how this profile along with other Observation Profiles or alternatively QuestionnaireResponse to is used represent SDOH assessments.

Usage

See the patterns page for implementation and usage patterns.

### Examples

10 minute Apgar Heart Rate Example

Usages:

- Refer to this Profile: QICore Observation Screening Assessment
- Examples for this Profile: Observation/example-screening-assessment-10-minute-apgar-heart-rate

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description Differentials, Snapshots, and other representations.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation | C | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation Constraints: obs-6, obs-7, us-core-2
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!S Σ | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category | S | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey | S | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version |  | 0..1 | string | Version of the system - if relevant
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
display |  | 0..1 | string | Representation defined by the system
userSelected |  | 0..1 | boolean | If this coding was chosen directly by the user
text |  | 0..1 | string | Plain text representation of the concept
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
Additional Bindings | Purpose | Documentation
US Core Screening Assessment Observation Category | Min Binding | USCDI Health Status/Assessments Data Elements
code | S Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject | S Σ | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
effective[x] | S Σ C | 0..1 |  | (QI) Clinically relevant time/time-period for observation Constraints: us-core-1
effectiveDateTime |  |  | dateTime S |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
performer | S Σ | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] | S Σ C | 0..1 |  | (QI) Actual result Constraints: us-core-3
valueQuantity |  |  | Quantity S |
valueCodeableConcept |  |  | CodeableConcept S |
valueString |  |  | string S |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | S C | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
hasMember | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Observation.status | Base | required | ObservationStatus | 📍4.0.1 | FHIR Std.
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Observation | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Observation | If 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-4 | error | Observation | If 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-5 | error | Observation | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Observation | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
obs-6 | error | Observation | dataAbsentReason SHALL only be present if Observation.value[x] is not present | `dataAbsentReason.empty() or value.empty()`
obs-7 | error | Observation | If 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()`
us-core-1 | error | Observation.effective[x] | Datetime must be at least to day. | `$this is dateTime implies $this.toString().length() >= 10`
us-core-2 | error | Observation | If there is no component or hasMember element then either a value[x] or a data absent reason must be present | `(component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())`
us-core-3 | error | Observation.value[x] | SHALL use UCUM for coded quantity units. | `ofType(Quantity).system.empty() or ofType(Quantity).system = 'http://unitsofmeasure.org'`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation |  | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation
status |  | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown
Slices for category |  | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey |  | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
code | Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject |  | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
effective[x] | Σ | 0..1 |  | (QI) Clinically relevant time/time-period for observation
effectiveDateTime |  |  | dateTime |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
performer |  | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] |  | 0..1 |  | (QI) Actual result
valueQuantity |  |  | Quantity |
valueCodeableConcept |  |  | CodeableConcept |
valueString |  |  | string |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason |  | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
hasMember |  | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom |  | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation | C | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation Constraints: obs-6, obs-7, us-core-2
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Business Identifier for observation
basedOn | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order
partOf | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event
status | ?!S Σ | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category | S | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey | S | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version |  | 0..1 | string | Version of the system - if relevant
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
display |  | 0..1 | string | Representation defined by the system
userSelected |  | 0..1 | boolean | If this coding was chosen directly by the user
text |  | 0..1 | string | Plain text representation of the concept
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
Additional Bindings | Purpose | Documentation
US Core Screening Assessment Observation Category | Min Binding | USCDI Health Status/Assessments Data Elements
code | S Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject | S Σ | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
focus | Σ | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record
encounter | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made
effective[x] | S Σ C | 0..1 |  | (QI) Clinically relevant time/time-period for observation Constraints: us-core-1
effectiveDateTime |  |  | dateTime S |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
issued | Σ | 0..1 | instant | Date/Time this version was made available
performer | S Σ | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] | S Σ C | 0..1 |  | (QI) Actual result Constraints: us-core-3
valueQuantity |  |  | Quantity S |
valueCodeableConcept |  |  | CodeableConcept S |
valueString |  |  | string S |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | S C | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note |  | 0..* | Annotation | Comments about the observation
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method |  | 0..1 | CodeableConcept | How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen |  | 0..1 | Reference(Specimen) | Specimen used for this observation
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device
referenceRange | C | 0..* | BackboneElement | Provides guide for interpretation Constraints: obs-3
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
low | C | 0..1 | SimpleQuantity | Low Range, if relevant
high | C | 0..1 | SimpleQuantity | High Range, if relevant
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age |  | 0..1 | Range | Applicable age range, if relevant
text |  | 0..1 | string | Text based reference range in an observation
hasMember | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
component | Σ | 0..* | BackboneElement | Component results
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code | Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x] | Σ | 0..1 |  | Actual component result
valueQuantity |  |  | Quantity |
valueCodeableConcept |  |  | CodeableConcept |
valueString |  |  | string |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | C | 0..1 | CodeableConcept | Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Observation.language | Base | preferred | Common Languages | 📦4.0.1 | FHIR Std.
Observation.status | Base | required | ObservationStatus | 📍4.0.1 | FHIR Std.
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.
Observation.bodySite | Base | example | SNOMED CT Body Structures | 📦4.0.1 | FHIR Std.
Observation.method | Base | example | Observation Methods | 📦4.0.1 | FHIR Std.
Observation.referenceRange.​type | Base | preferred | Observation Reference Range Meaning Codes | 📦4.0.1 | FHIR Std.
Observation.referenceRange.​appliesTo | Base | example | Observation Reference Range Applies To Codes | 📦4.0.1 | FHIR Std.
Observation.component.​code | Base | example | LOINC Codes | 📦4.0.1 | FHIR Std.
Observation.component.​dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.component.​interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Observation | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Observation | If 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-4 | error | Observation | If 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-5 | error | Observation | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Observation | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
obs-3 | error | Observation.referenceRange | Must have at least a low or a high or text | `low.exists() or high.exists() or text.exists()`
obs-6 | error | Observation | dataAbsentReason SHALL only be present if Observation.value[x] is not present | `dataAbsentReason.empty() or value.empty()`
obs-7 | error | Observation | If 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()`
us-core-1 | error | Observation.effective[x] | Datetime must be at least to day. | `$this is dateTime implies $this.toString().length() >= 10`
us-core-2 | error | Observation | If there is no component or hasMember element then either a value[x] or a data absent reason must be present | `(component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())`
us-core-3 | error | Observation.value[x] | SHALL use UCUM for coded quantity units. | `ofType(Quantity).system.empty() or ofType(Quantity).system = 'http://unitsofmeasure.org'`

Summary

Mandatory: 4 elements
Must-Support: 1 element

Structures

This structure refers to these other structures:

- QICore Patient (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-patient)
- QICore Location (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-location)
- QICore Practitioner (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-practitioner)
- QICore Organization (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-organization)
- QICore PractitionerRole (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-practitionerrole)
- QICore CareTeam (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-careteam)
- QICore RelatedPerson (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-relatedperson)
- QICore Observation Screening Assessment (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-observation-screening-assessment)
- QICore QuestionnaireResponse (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-questionnaireresponse)

Slices

This structure defines the following Slices:

- The element 1 is sliced based on the value of Observation.category

Maturity: 4

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation | C | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation Constraints: obs-6, obs-7, us-core-2
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!S Σ | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category | S | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey | S | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version |  | 0..1 | string | Version of the system - if relevant
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
display |  | 0..1 | string | Representation defined by the system
userSelected |  | 0..1 | boolean | If this coding was chosen directly by the user
text |  | 0..1 | string | Plain text representation of the concept
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
Additional Bindings | Purpose | Documentation
US Core Screening Assessment Observation Category | Min Binding | USCDI Health Status/Assessments Data Elements
code | S Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject | S Σ | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
effective[x] | S Σ C | 0..1 |  | (QI) Clinically relevant time/time-period for observation Constraints: us-core-1
effectiveDateTime |  |  | dateTime S |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
performer | S Σ | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] | S Σ C | 0..1 |  | (QI) Actual result Constraints: us-core-3
valueQuantity |  |  | Quantity S |
valueCodeableConcept |  |  | CodeableConcept S |
valueString |  |  | string S |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | S C | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
hasMember | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Observation.status | Base | required | ObservationStatus | 📍4.0.1 | FHIR Std.
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Observation | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Observation | If 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-4 | error | Observation | If 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-5 | error | Observation | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Observation | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
obs-6 | error | Observation | dataAbsentReason SHALL only be present if Observation.value[x] is not present | `dataAbsentReason.empty() or value.empty()`
obs-7 | error | Observation | If 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()`
us-core-1 | error | Observation.effective[x] | Datetime must be at least to day. | `$this is dateTime implies $this.toString().length() >= 10`
us-core-2 | error | Observation | If there is no component or hasMember element then either a value[x] or a data absent reason must be present | `(component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())`
us-core-3 | error | Observation.value[x] | SHALL use UCUM for coded quantity units. | `ofType(Quantity).system.empty() or ofType(Quantity).system = 'http://unitsofmeasure.org'`

Differential View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation |  | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation
status |  | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown
Slices for category |  | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey |  | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
code | Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject |  | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
effective[x] | Σ | 0..1 |  | (QI) Clinically relevant time/time-period for observation
effectiveDateTime |  |  | dateTime |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
performer |  | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] |  | 0..1 |  | (QI) Actual result
valueQuantity |  |  | Quantity |
valueCodeableConcept |  |  | CodeableConcept |
valueString |  |  | string |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason |  | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
hasMember |  | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom |  | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

Snapshot ViewView

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Observation | C | 0..* | USCoreObservationScreeningAssessmentProfile | Survey Observation Constraints: obs-6, obs-7, us-core-2
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Business Identifier for observation
basedOn | Σ | 0..* | Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest) | Fulfills plan, proposal or order
partOf | Σ | 0..* | Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy) | Part of referenced event
status | ?!S Σ | 1..1 | code | (QI) registered | preliminary | final | amended | corrected | cancelled | entered-in-error | unknown Binding: ObservationStatus (required): Codes providing the status of an observation.
Slices for category | S | 1..* | CodeableConcept | (QI) Classification of type of observation Slice: Unordered, Open by value:$this Binding: ObservationCategoryCodes (required): Codes for high level observation categories.
category:survey | S | 1..1 | CodeableConcept | (QI) Classification of type of observation Binding: ObservationCategoryCodes (required): Codes for high level observation categories. Required Pattern: At least the following
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
coding |  | 1..* | Coding | Code defined by a terminology system Fixed Value: (Complex)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
system |  | 1..1 | uri | Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version |  | 0..1 | string | Version of the system - if relevant
code |  | 1..1 | code | Symbol in syntax defined by the system Fixed Value: survey
display |  | 0..1 | string | Representation defined by the system
userSelected |  | 0..1 | boolean | If this coding was chosen directly by the user
text |  | 0..1 | string | Plain text representation of the concept
category:screening-assessment | S | 0..* | CodeableConcept | (QI) Classification of type of observation Binding: US Core Screening Assessment Observation Maximum Category (required)
Additional Bindings | Purpose | Documentation
US Core Screening Assessment Observation Category | Min Binding | USCDI Health Status/Assessments Data Elements
code | S Σ | 1..1 | CodeableConcept | (QI) Type of observation (code / type) Binding: Screening and Assessment Survey Codes (preferred)
subject | S Σ | 1..1 | Reference(QICore Patient | QICore Location) | (QI) Who and/or what the observation is about
focus | Σ | 0..* | Reference(Resource) | What the observation is about, when it is not about the subject of record
encounter | Σ | 0..1 | Reference(Encounter) | Healthcare event during which this observation is made
effective[x] | S Σ C | 0..1 |  | (QI) Clinically relevant time/time-period for observation Constraints: us-core-1
effectiveDateTime |  |  | dateTime S |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
issued | Σ | 0..1 | instant | Date/Time this version was made available
performer | S Σ | 0..* | Reference(QICore Practitioner | QICore Organization | QICore Patient | QICore PractitionerRole | QICore CareTeam | QICore RelatedPerson) | (QI) Who is responsible for the observation
value[x] | S Σ C | 0..1 |  | (QI) Actual result Constraints: us-core-3
valueQuantity |  |  | Quantity S |
valueCodeableConcept |  |  | CodeableConcept S |
valueString |  |  | string S |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | S C | 0..1 | CodeableConcept | (QI) Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | (QI) High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
note |  | 0..* | Annotation | Comments about the observation
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: SNOMEDCTBodyStructures (example): Codes describing anatomical locations. May include laterality.
method |  | 0..1 | CodeableConcept | How it was done Binding: ObservationMethods (example): Methods for simple observations.
specimen |  | 0..1 | Reference(Specimen) | Specimen used for this observation
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device
referenceRange | C | 0..* | BackboneElement | Provides guide for interpretation Constraints: obs-3
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
low | C | 0..1 | SimpleQuantity | Low Range, if relevant
high | C | 0..1 | SimpleQuantity | High Range, if relevant
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred): Code for the meaning of a reference range.
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example): Codes identifying the population the reference range applies to.
age |  | 0..1 | Range | Applicable age range, if relevant
text |  | 0..1 | string | Text based reference range in an observation
hasMember | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Reference to panel or multi-select responses
derivedFrom | S Σ | 0..* | Reference(QICore Observation Screening Assessment | QICore QuestionnaireResponse) | (QI) Related Observations or QuestionnaireResponses that the observation is made from
component | Σ | 0..* | BackboneElement | Component results
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code | Σ | 1..1 | CodeableConcept | Type of component observation (code / type) Binding: LOINCCodes (example): Codes identifying names of simple observations.
value[x] | Σ | 0..1 |  | Actual component result
valueQuantity |  |  | Quantity |
valueCodeableConcept |  |  | CodeableConcept |
valueString |  |  | string |
valueBoolean |  |  | boolean |
valueInteger |  |  | integer |
valueRange |  |  | Range |
valueRatio |  |  | Ratio |
valueSampledData |  |  | SampledData |
valueTime |  |  | time |
valueDateTime |  |  | dateTime |
valuePeriod |  |  | Period |
dataAbsentReason | C | 0..1 | CodeableConcept | Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible): Codes identifying interpretations of observations.
referenceRange |  | 0..* | See referenceRange (Observation) | Provides guide for interpretation of component result
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Observation.language | Base | preferred | Common Languages | 📦4.0.1 | FHIR Std.
Observation.status | Base | required | ObservationStatus | 📍4.0.1 | FHIR Std.
Observation.category | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:survey | Base | required | Observation Category Codes | 📦4.0.1 | FHIR Std.
Observation.category:screening-assessment | Base | required | US Core Screening Assessment Observation Maximum Category | 📦8.0.0 | US Core v8.0
Observation.code | Base | preferred | Screening and Assessment Survey Codes | 📦20241008 | VSAC v0.23
Observation.dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.
Observation.bodySite | Base | example | SNOMED CT Body Structures | 📦4.0.1 | FHIR Std.
Observation.method | Base | example | Observation Methods | 📦4.0.1 | FHIR Std.
Observation.referenceRange.​type | Base | preferred | Observation Reference Range Meaning Codes | 📦4.0.1 | FHIR Std.
Observation.referenceRange.​appliesTo | Base | example | Observation Reference Range Applies To Codes | 📦4.0.1 | FHIR Std.
Observation.component.​code | Base | example | LOINC Codes | 📦4.0.1 | FHIR Std.
Observation.component.​dataAbsentReason | Base | extensible | DataAbsentReason | 📦4.0.1 | FHIR Std.
Observation.component.​interpretation | Base | extensible | Observation Interpretation Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Observation | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Observation | If 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-4 | error | Observation | If 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-5 | error | Observation | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Observation | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
obs-3 | error | Observation.referenceRange | Must have at least a low or a high or text | `low.exists() or high.exists() or text.exists()`
obs-6 | error | Observation | dataAbsentReason SHALL only be present if Observation.value[x] is not present | `dataAbsentReason.empty() or value.empty()`
obs-7 | error | Observation | If 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()`
us-core-1 | error | Observation.effective[x] | Datetime must be at least to day. | `$this is dateTime implies $this.toString().length() >= 10`
us-core-2 | error | Observation | If there is no component or hasMember element then either a value[x] or a data absent reason must be present | `(component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())`
us-core-3 | error | Observation.value[x] | SHALL use UCUM for coded quantity units. | `ofType(Quantity).system.empty() or ofType(Quantity).system = 'http://unitsofmeasure.org'`

Summary

Mandatory: 4 elements
Must-Support: 1 element

Structures

This structure refers to these other structures:

- QICore Patient (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-patient)
- QICore Location (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-location)
- QICore Practitioner (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-practitioner)
- QICore Organization (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-organization)
- QICore PractitionerRole (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-practitionerrole)
- QICore CareTeam (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-careteam)
- QICore RelatedPerson (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-relatedperson)
- QICore Observation Screening Assessment (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-observation-screening-assessment)
- QICore QuestionnaireResponse (http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-questionnaireresponse)

Slices

This structure defines the following Slices:

- The element 1 is sliced based on the value of Observation.category

Maturity: 4

Other representations of profile: CSV, Excel, Schematron