AU Core Implementation Guide
0.1.0-draft - Draft
This page is part of the AU Core Implementation Guide 0.1.0 Draft. It is based on AU Base 4.1.0. For a full list of available versions, see the Directory of published versions
Official URL: http://hl7.org.au/fhir/core/StructureDefinition/au-core-allergyintolerance | Version: 0.1.0-draft | |||
Standards status: Draft | Maturity Level: 0 | Computable Name: AUCoreAllergyIntolerance | ||
Copyright/Legal: HL7 Australia© 2018+; Licensed Under Creative Commons No Rights Reserved. |
This profile sets minimum expectations for an AllergyIntolerance resource to record, search, and fetch allergies/adverse reactions associated with a patient. It is based on the AU Base Allergy Intolerance profile and identifies the additional mandatory core elements, extensions, vocabularies and value sets that SHALL be present in the AllergyIntolerance resource when conforming to this profile. It provides the floor for standards development for specific uses cases in an Australian context.
The following are supported usage scenarios for this profile:
AllergyIntolerance.verificationStatus
is “unconfirmed” where a sending system does not clearly have this element or “confirmed” depending on the level of certaintyAllergyIntolerance.code
AllergyIntolerance.code
and AllergyIntolerance.clinicalStatus
of “confirmed” or “unconfirmed”AllergyIntolerance.code
and optionally in AllergyIntolerance.reaction.substance
Usage:
Description of Profiles, Differentials, Snapshots and how the different presentations work.
This structure is derived from AUBaseAllergyIntolerance
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
AllergyIntolerance | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context | |
clinicalStatus | S | 0..1 | CodeableConcept | active | inactive | resolved |
verificationStatus | S | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error |
type | S | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) |
category | S | 0..* | code | food | medication | environment | biologic |
code | S | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance |
patient | S | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for |
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted |
onset[x] | S | 0..1 | When allergy or intolerance was identified | |
onsetDateTime | dateTime | |||
onsetAge | Age | |||
onsetPeriod | Period | |||
onsetRange | Range | |||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity |
asserter | S | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy |
note | S | 0..* | Annotation | Additional text not captured in other fields |
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance |
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event |
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event |
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) |
Documentation for this format |
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
AllergyIntolerance | C | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context |
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created |
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
clinicalStatus | ?!SΣC | 0..1 | CodeableConcept | active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance. |
verificationStatus | ?!SΣC | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. |
type | SΣ | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk. |
category | SΣ | 0..* | code | food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances. |
code | SΣ | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance Binding: https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 (preferred) |
patient | SΣ | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for |
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted |
onset[x] | S | 0..1 | When allergy or intolerance was identified | |
onsetDateTime | dateTime | |||
onsetAge | Age | |||
onsetPeriod | Period | |||
onsetRange | Range | |||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity |
asserter | SΣ | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy |
note | S | 0..* | Annotation | Additional text not captured in other fields |
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event Binding: https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 (preferred) |
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event Binding: https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 (preferred) |
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. |
Documentation for this format |
Path | Conformance | ValueSet |
AllergyIntolerance.clinicalStatus | required | AllergyIntoleranceClinicalStatusCodes |
AllergyIntolerance.verificationStatus | required | AllergyIntoleranceVerificationStatusCodes |
AllergyIntolerance.type | required | AllergyIntoleranceType |
AllergyIntolerance.category | required | AllergyIntoleranceCategory |
AllergyIntolerance.code | preferred | https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 |
AllergyIntolerance.reaction.substance | preferred | https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 |
AllergyIntolerance.reaction.manifestation | preferred | https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 |
AllergyIntolerance.reaction.severity | required | AllergyIntoleranceSeverity |
Name | Flags | Card. | Type | Description & Constraints | ||||
---|---|---|---|---|---|---|---|---|
AllergyIntolerance | C | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context | ||||
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.
| |||||
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 | External ids for this item | ||||
clinicalStatus | ?!SΣC | 0..1 | CodeableConcept | active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance. | ||||
verificationStatus | ?!SΣC | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. | ||||
type | SΣ | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk. | ||||
category | SΣ | 0..* | code | food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances. | ||||
criticality | Σ | 0..1 | code | low | high | unable-to-assess Binding: AllergyIntoleranceCriticality (required): Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. | ||||
code | SΣ | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance Binding: https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 (preferred) | ||||
patient | SΣ | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for | ||||
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted | ||||
onset[x] | S | 0..1 | When allergy or intolerance was identified | |||||
onsetDateTime | dateTime | |||||||
onsetAge | Age | |||||||
onsetPeriod | Period | |||||||
onsetRange | Range | |||||||
recordedDate | 0..1 | dateTime | Date first version of the resource instance was recorded | |||||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity | ||||
asserter | SΣ | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy | ||||
lastOccurrence | 0..1 | dateTime | Date(/time) of last known occurrence of a reaction | |||||
note | S | 0..* | Annotation | Additional text not captured in other fields | ||||
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance | ||||
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 | ||||
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event Binding: https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 (preferred) | ||||
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event Binding: https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 (preferred) | ||||
description | 0..1 | string | Description of the event as a whole | |||||
onset | 0..1 | dateTime | Date(/time) when manifestations showed | |||||
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. | ||||
exposureRoute | 0..1 | CodeableConcept | How the subject was exposed to the substance Binding: https://healthterminologies.gov.au/fhir/ValueSet/route-of-administration-1 (preferred) | |||||
note | 0..* | Annotation | Text about event not captured in other fields | |||||
Documentation for this format |
This structure is derived from AUBaseAllergyIntolerance
Summary
Mandatory: 1 element
Must-Support: 15 elements
Structures
This structure refers to these other structures:
Maturity: 0
Differential View
This structure is derived from AUBaseAllergyIntolerance
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
AllergyIntolerance | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context | |
clinicalStatus | S | 0..1 | CodeableConcept | active | inactive | resolved |
verificationStatus | S | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error |
type | S | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) |
category | S | 0..* | code | food | medication | environment | biologic |
code | S | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance |
patient | S | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for |
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted |
onset[x] | S | 0..1 | When allergy or intolerance was identified | |
onsetDateTime | dateTime | |||
onsetAge | Age | |||
onsetPeriod | Period | |||
onsetRange | Range | |||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity |
asserter | S | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy |
note | S | 0..* | Annotation | Additional text not captured in other fields |
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance |
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event |
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event |
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) |
Documentation for this format |
Key Elements View
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
AllergyIntolerance | C | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context |
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created |
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored |
clinicalStatus | ?!SΣC | 0..1 | CodeableConcept | active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance. |
verificationStatus | ?!SΣC | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. |
type | SΣ | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk. |
category | SΣ | 0..* | code | food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances. |
code | SΣ | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance Binding: https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 (preferred) |
patient | SΣ | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for |
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted |
onset[x] | S | 0..1 | When allergy or intolerance was identified | |
onsetDateTime | dateTime | |||
onsetAge | Age | |||
onsetPeriod | Period | |||
onsetRange | Range | |||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity |
asserter | SΣ | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy |
note | S | 0..* | Annotation | Additional text not captured in other fields |
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance |
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized |
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event Binding: https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 (preferred) |
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event Binding: https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 (preferred) |
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. |
Documentation for this format |
Path | Conformance | ValueSet |
AllergyIntolerance.clinicalStatus | required | AllergyIntoleranceClinicalStatusCodes |
AllergyIntolerance.verificationStatus | required | AllergyIntoleranceVerificationStatusCodes |
AllergyIntolerance.type | required | AllergyIntoleranceType |
AllergyIntolerance.category | required | AllergyIntoleranceCategory |
AllergyIntolerance.code | preferred | https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 |
AllergyIntolerance.reaction.substance | preferred | https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 |
AllergyIntolerance.reaction.manifestation | preferred | https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 |
AllergyIntolerance.reaction.severity | required | AllergyIntoleranceSeverity |
Snapshot View
Name | Flags | Card. | Type | Description & Constraints | ||||
---|---|---|---|---|---|---|---|---|
AllergyIntolerance | C | 0..* | AUBaseAllergyIntolerance | An allergy or intolerance statement in an Australian healthcare context | ||||
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.
| |||||
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 | External ids for this item | ||||
clinicalStatus | ?!SΣC | 0..1 | CodeableConcept | active | inactive | resolved Binding: AllergyIntoleranceClinicalStatusCodes (required): The clinical status of the allergy or intolerance. | ||||
verificationStatus | ?!SΣC | 0..1 | CodeableConcept | unconfirmed | confirmed | refuted | entered-in-error Binding: AllergyIntoleranceVerificationStatusCodes (required): Assertion about certainty associated with a propensity, or potential risk, of a reaction to the identified substance. | ||||
type | SΣ | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) Binding: AllergyIntoleranceType (required): Identification of the underlying physiological mechanism for a Reaction Risk. | ||||
category | SΣ | 0..* | code | food | medication | environment | biologic Binding: AllergyIntoleranceCategory (required): Category of an identified substance associated with allergies or intolerances. | ||||
criticality | Σ | 0..1 | code | low | high | unable-to-assess Binding: AllergyIntoleranceCriticality (required): Estimate of the potential clinical harm, or seriousness, of a reaction to an identified substance. | ||||
code | SΣ | 1..1 | CodeableConcept | Code that identifies the allergy or intolerance Binding: https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 (preferred) | ||||
patient | SΣ | 1..1 | Reference(AU Core Patient) | Who the sensitivity is for | ||||
encounter | S | 0..1 | Reference(AU Core Encounter) | Encounter when the allergy or intolerance was asserted | ||||
onset[x] | S | 0..1 | When allergy or intolerance was identified | |||||
onsetDateTime | dateTime | |||||||
onsetAge | Age | |||||||
onsetPeriod | Period | |||||||
onsetRange | Range | |||||||
recordedDate | 0..1 | dateTime | Date first version of the resource instance was recorded | |||||
recorder | S | 0..1 | Reference(AU Core Practitioner | AU Core Patient | AU Core RelatedPerson | AU Core PractitionerRole) | Who recorded the sensitivity | ||||
asserter | SΣ | 0..1 | Reference(AU Core Patient | AU Core RelatedPerson | AU Core Practitioner | AU Core PractitionerRole) | Source of the information about the allergy | ||||
lastOccurrence | 0..1 | dateTime | Date(/time) of last known occurrence of a reaction | |||||
note | S | 0..* | Annotation | Additional text not captured in other fields | ||||
reaction | S | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance | ||||
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 | ||||
substance | S | 0..1 | CodeableConcept | Specific substance or pharmaceutical product considered to be responsible for event Binding: https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 (preferred) | ||||
manifestation | S | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event Binding: https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 (preferred) | ||||
description | 0..1 | string | Description of the event as a whole | |||||
onset | 0..1 | dateTime | Date(/time) when manifestations showed | |||||
severity | S | 0..1 | code | mild | moderate | severe (of event as a whole) Binding: AllergyIntoleranceSeverity (required): Clinical assessment of the severity of a reaction event as a whole, potentially considering multiple different manifestations. | ||||
exposureRoute | 0..1 | CodeableConcept | How the subject was exposed to the substance Binding: https://healthterminologies.gov.au/fhir/ValueSet/route-of-administration-1 (preferred) | |||||
note | 0..* | Annotation | Text about event not captured in other fields | |||||
Documentation for this format |
Path | Conformance | ValueSet | ||||
AllergyIntolerance.language | preferred | CommonLanguages
| ||||
AllergyIntolerance.clinicalStatus | required | AllergyIntoleranceClinicalStatusCodes | ||||
AllergyIntolerance.verificationStatus | required | AllergyIntoleranceVerificationStatusCodes | ||||
AllergyIntolerance.type | required | AllergyIntoleranceType | ||||
AllergyIntolerance.category | required | AllergyIntoleranceCategory | ||||
AllergyIntolerance.criticality | required | AllergyIntoleranceCriticality | ||||
AllergyIntolerance.code | preferred | https://healthterminologies.gov.au/fhir/ValueSet/indicator-hypersensitivity-intolerance-to-substance-2 | ||||
AllergyIntolerance.reaction.substance | preferred | https://healthterminologies.gov.au/fhir/ValueSet/adverse-reaction-agent-1 | ||||
AllergyIntolerance.reaction.manifestation | preferred | https://healthterminologies.gov.au/fhir/ValueSet/clinical-finding-1 | ||||
AllergyIntolerance.reaction.severity | required | AllergyIntoleranceSeverity | ||||
AllergyIntolerance.reaction.exposureRoute | preferred | https://healthterminologies.gov.au/fhir/ValueSet/route-of-administration-1 |
This structure is derived from AUBaseAllergyIntolerance
Summary
Mandatory: 1 element
Must-Support: 15 elements
Structures
This structure refers to these other structures:
Maturity: 0
Other representations of profile: CSV, Excel, Schematron
Below is an overview of the mandatory and optional search parameters. FHIR search operations and the syntax used to describe the interactions is described here.
Name | Type | Conformance | Description | Path |
---|---|---|---|---|
TBD | TBD | TBD | TBD | TBD |
The following search parameters and search parameter combinations SHALL be supported:
The following search parameters and search parameter combinations SHOULD be supported: