Ophthalmology Implementation Guide
0.2.0 - CI Build

Ophthalmology Implementation Guide - Local Development build (v0.2.0). See the Directory of published versions

## Resource Profile: Base Observation for Ophthalmology

Defining URL: | http://hl7.org/fhir/ig/ophthalmology/StructureDefinition/observation-base
Version: | 0.2.0
Name: | ObservationBase
Title: | Base Observation for Ophthalmology
Status: | Draft as of 2020-11-02T00:03:17+11:00
Definition: | A profile describing an Observation for ophthalmology
Publisher: | HL7 International - Ophthalmology Work Group
Source Resource: | XML / JSON / Turtle

The official URL for this profile is:

    http://hl7.org/fhir/ig/ophthalmology/StructureDefinition/observation-base

### Formal Views of Profile Content

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

- Text Summary
- Differential Table
- Snapshot Table
- Snapshot Table (Must Support)
- All

This structure is derived from Observation

Summary

Mandatory: 0 element (1 nested mandatory element)
Fixed Value: 2 elements

This structure is derived from Observation

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Observation |  | 0..* | Observation | Measurements and simple assertions
category |  |  |  |
coding |  | 1..1 | Coding | Code defined by a terminology system
system |  | 0..1 | uri | Identity of the terminology system Fixed Value: http://hl7.org/fhir/ValueSet/observation-category
code |  | 0..1 | code | Symbol in syntax defined by the system Fixed Value: exam
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: Ophthalmology Body Site ValueSet (required)
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Observation | I | 0..* | Observation | Measurements and simple assertions
id | Σ | 0..1 | string | 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) Max Binding: AllLanguages
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation
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 | ?!Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ObservationStatus (required)
category |  | 0..* | CodeableConcept | Classification of type of observation Binding: ObservationCategoryCodes (preferred)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
system | Σ | 0..1 | uri | Identity of the terminology system Fixed Value: http://hl7.org/fhir/ValueSet/observation-category
version | Σ | 0..1 | string | Version of the system - if relevant
code | Σ | 0..1 | code | Symbol in syntax defined by the system Fixed Value: exam
display | Σ | 0..1 | string | Representation defined by the system
userSelected | Σ | 0..1 | boolean | If this coding was chosen directly by the user
text | Σ | 0..1 | string | Plain text representation of the concept
code | Σ | 1..1 | CodeableConcept | Type of observation (code / type) Binding: LOINCCodes (example)
subject | Σ | 0..1 | Reference(Patient | Group | Device | Location) | 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] | Σ | 0..1 |  | Clinically relevant time/time-period for observation
effectiveDateTime |  |  | dateTime |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
issued | Σ | 0..1 | instant | Date/Time this version was made available
performer | Σ | 0..* | Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) | Who is responsible for the observation
value[x] | Σ I | 0..1 |  | 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 | I | 0..1 | CodeableConcept | Why the result is missing Binding: DataAbsentReason (extensible)
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible)
note |  | 0..* | Annotation | Comments about the observation
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: Ophthalmology Body Site ValueSet (required)
method |  | 0..1 | CodeableConcept | How it was done Binding: ObservationMethods (example)
specimen |  | 0..1 | Reference(Specimen) | Specimen used for this observation
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device
referenceRange | I | 0..* | BackboneElement | Provides guide for interpretation obs-3: Must have at least a low or a high or text
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 | I | 0..1 | SimpleQuantity | Low Range, if relevant
high | I | 0..1 | SimpleQuantity | High Range, if relevant
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred)
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example)
age |  | 0..1 | Range | Applicable age range, if relevant
text |  | 0..1 | string | Text based reference range in an observation
hasMember | Σ | 0..* | Reference(Observation | QuestionnaireResponse | MolecularSequence) | Related resource that belongs to the Observation group
derivedFrom | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence) | Related measurements 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)
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 | I | 0..1 | CodeableConcept | Why the component result is missing Binding: DataAbsentReason (extensible)
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible)
referenceRange |  | 0..* | See referenceRange | Provides guide for interpretation of component result
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Observation | I | 0..* | Observation | Measurements and simple assertions
Documentation for this format

This structure is derived from Observation

Summary

Mandatory: 0 element (1 nested mandatory element)
Fixed Value: 2 elements

Differential View

This structure is derived from Observation

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Observation |  | 0..* | Observation | Measurements and simple assertions
category |  |  |  |
coding |  | 1..1 | Coding | Code defined by a terminology system
system |  | 0..1 | uri | Identity of the terminology system Fixed Value: http://hl7.org/fhir/ValueSet/observation-category
code |  | 0..1 | code | Symbol in syntax defined by the system Fixed Value: exam
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: Ophthalmology Body Site ValueSet (required)
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Observation | I | 0..* | Observation | Measurements and simple assertions
id | Σ | 0..1 | string | 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) Max Binding: AllLanguages
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation
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 | ?!Σ | 1..1 | code | registered | preliminary | final | amended + Binding: ObservationStatus (required)
category |  | 0..* | CodeableConcept | Classification of type of observation Binding: ObservationCategoryCodes (preferred)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 1..1 | Coding | Code defined by a terminology system
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
system | Σ | 0..1 | uri | Identity of the terminology system Fixed Value: http://hl7.org/fhir/ValueSet/observation-category
version | Σ | 0..1 | string | Version of the system - if relevant
code | Σ | 0..1 | code | Symbol in syntax defined by the system Fixed Value: exam
display | Σ | 0..1 | string | Representation defined by the system
userSelected | Σ | 0..1 | boolean | If this coding was chosen directly by the user
text | Σ | 0..1 | string | Plain text representation of the concept
code | Σ | 1..1 | CodeableConcept | Type of observation (code / type) Binding: LOINCCodes (example)
subject | Σ | 0..1 | Reference(Patient | Group | Device | Location) | 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] | Σ | 0..1 |  | Clinically relevant time/time-period for observation
effectiveDateTime |  |  | dateTime |
effectivePeriod |  |  | Period |
effectiveTiming |  |  | Timing |
effectiveInstant |  |  | instant |
issued | Σ | 0..1 | instant | Date/Time this version was made available
performer | Σ | 0..* | Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson) | Who is responsible for the observation
value[x] | Σ I | 0..1 |  | 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 | I | 0..1 | CodeableConcept | Why the result is missing Binding: DataAbsentReason (extensible)
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible)
note |  | 0..* | Annotation | Comments about the observation
bodySite |  | 0..1 | CodeableConcept | Observed body part Binding: Ophthalmology Body Site ValueSet (required)
method |  | 0..1 | CodeableConcept | How it was done Binding: ObservationMethods (example)
specimen |  | 0..1 | Reference(Specimen) | Specimen used for this observation
device |  | 0..1 | Reference(Device | DeviceMetric) | (Measurement) Device
referenceRange | I | 0..* | BackboneElement | Provides guide for interpretation obs-3: Must have at least a low or a high or text
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 | I | 0..1 | SimpleQuantity | Low Range, if relevant
high | I | 0..1 | SimpleQuantity | High Range, if relevant
type |  | 0..1 | CodeableConcept | Reference range qualifier Binding: ObservationReferenceRangeMeaningCodes (preferred)
appliesTo |  | 0..* | CodeableConcept | Reference range population Binding: ObservationReferenceRangeAppliesToCodes (example)
age |  | 0..1 | Range | Applicable age range, if relevant
text |  | 0..1 | string | Text based reference range in an observation
hasMember | Σ | 0..* | Reference(Observation | QuestionnaireResponse | MolecularSequence) | Related resource that belongs to the Observation group
derivedFrom | Σ | 0..* | Reference(DocumentReference | ImagingStudy | Media | QuestionnaireResponse | Observation | MolecularSequence) | Related measurements 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)
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 | I | 0..1 | CodeableConcept | Why the component result is missing Binding: DataAbsentReason (extensible)
interpretation |  | 0..* | CodeableConcept | High, low, normal, etc. Binding: ObservationInterpretationCodes (extensible)
referenceRange |  | 0..* | See referenceRange | Provides guide for interpretation of component result
Documentation for this format

Other representations of profile: Schematron

#### Terminology Bindings

Path | Conformance | ValueSet
Observation.language | preferred | CommonLanguages Max Binding: AllLanguages
Observation.status | required | ObservationStatus
Observation.category | preferred | ObservationCategoryCodes
Observation.code | example | LOINCCodes
Observation.dataAbsentReason | extensible | DataAbsentReason
Observation.interpretation | extensible | ObservationInterpretationCodes
Observation.bodySite | required | OphthalmologyBodySite
Observation.method | example | ObservationMethods
Observation.referenceRange.type | preferred | ObservationReferenceRangeMeaningCodes
Observation.referenceRange.appliesTo | example | ObservationReferenceRangeAppliesToCodes
Observation.component.code | example | LOINCCodes
Observation.component.dataAbsentReason | extensible | DataAbsentReason
Observation.component.interpretation | extensible | ObservationInterpretationCodes

#### Constraints

Id | Path | Details | Requirements
dom-2 | Observation | If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty() |
dom-3 | 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 | 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 | Observation | If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty() |
dom-6 | Observation | A resource should have narrative for robust management : text.`div`.exists() |
obs-6 | Observation | dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty() |
obs-7 | 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() |
ele-1 | Observation.meta | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.implicitRules | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.language | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.text | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.modifierExtension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.modifierExtension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.identifier | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.basedOn | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.partOf | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.status | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.category.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.category.coding | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.coding.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.category.coding.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.category.coding.system | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.coding.version | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.coding.code | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.coding.display | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.coding.userSelected | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.category.text | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.code | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.subject | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.focus | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.encounter | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.effective[x] | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.issued | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.performer | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.value[x] | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.dataAbsentReason | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.interpretation | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.note | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.bodySite | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.method | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.specimen | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.device | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
obs-3 | Observation.referenceRange | Must have at least a low or a high or text : low.exists() or high.exists() or text.exists() |
ele-1 | Observation.referenceRange.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.referenceRange.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.referenceRange.modifierExtension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.referenceRange.modifierExtension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.referenceRange.low | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange.high | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange.type | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange.appliesTo | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange.age | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.referenceRange.text | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.hasMember | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.derivedFrom | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component.extension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.component.extension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.component.modifierExtension | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | Observation.component.modifierExtension | Must have either extensions or value[x], not both : extension.exists() != value.exists() |
ele-1 | Observation.component.code | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component.value[x] | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component.dataAbsentReason | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component.interpretation | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ele-1 | Observation.component.referenceRange | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |