| Package | au.digitalhealth.cda.schema |
| Type | StructureDefinition |
| Id | IVL-PQ |
| FHIR Version | R5 |
| Source | http://ns.electronichealth.net.au/cda/https://build.fhir.org/ig/AuDigitalHealth/cda-au-schema/StructureDefinition-IVL-PQ.html |
| URL | http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ |
| Version | 1.0.0 |
| Status | active |
| Date | 2025-07-21T22:05:27+00:00 |
| Name | IVL_PQ |
| Title | IVL_PQ: Interval (V3 Data Type) |
| Realm | au |
| Authority | national |
| Description | A set of consecutive values of an ordered base data type. |
| Type | http://hl7.org/cda/stds/core/StructureDefinition/IVL_PQ |
| Kind | logical |
| StructureDefinition | |
| Criterion | Criterion (CDA Class) |
| EIVL-TS | EIVL_TS: EventRelatedPeriodicInterval (V3 Data Type) |
| Observation | Observation (CDA Class) |
| ObservationRange | ObservationRange (CDA Class) |
| SubstanceAdministration | SubstanceAdministration (CDA Class) |
| au-Observation | ADHA Observation (CDA Class) |
| au-ObservationRange | ADHA ObservationRange (CDA Class) |
| au-SubstanceAdministration | ADHA SubstanceAdministration (CDA Class) |
| AgeRangeObservation | Age Range Observation |
| StructureDefinition | |
| IVXB-PQ | IVXB_PQ: Interval Boundary PhysicalQuantity (V3 Data Type) |
| PQ | PQ: PhysicalQuantity (V3 Data Type) |
| cs-simple | cs: Coded Simple Value |
| ValueSet | |
| CDASetOperator | CDASetOperator |
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition IVL-PQ
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  IVL_PQ | C | 1..* | PQ | XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor, @unit, @value, translation Base for all types and resources Binding: This type can be bound to a value set using the CDA binding style Instances of this logical model are not marked to be the target of a Reference Logical Container: ClinicalDocument (CDA Class) Constraints: ivl-pq-center |
  @operator | 0..1 | cs | Binding: CDASetOperator (required) | |
 low | 0..1 | IVXB_PQ | ||
| center | 0..1 | PQ | ||
| width | 0..1 | PQ | ||
 high | 0..1 | IVXB_PQ | ||
| Documentation for this format | ||||
FHIR{
"resourceType": "StructureDefinition",
"id": "IVL-PQ",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/logical-target",
"_valueBoolean": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
"valueCode": "not-applicable"
}
]
}
},
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
"valueUri": "urn:hl7-org:v3"
},
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/logical-container",
"valueUri": "http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
"valueCode": "can-bind"
},
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/elementdefinition-binding-style",
"valueCode": "CDA"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 1,
"_valueInteger": {
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
"valueCanonical": "http://ns.electronichealth.net.au/cda/ImplementationGuide/au.digitalhealth.cda.schema"
}
]
}
}
],
"url": "http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ",
"version": "1.0.0",
"name": "IVL_PQ",
"title": "IVL_PQ: Interval (V3 Data Type)",
"status": "active",
"experimental": false,
"date": "2025-07-21T22:05:27+00:00",
"publisher": "HL7",
"description": "A set of consecutive values of an ordered base data type.",
"fhirVersion": "5.0.0",
"mapping": [
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "logical",
"abstract": false,
"type": "http://hl7.org/cda/stds/core/StructureDefinition/IVL_PQ",
"baseDefinition": "http://hl7.org/cda/stds/core/StructureDefinition/PQ",
"derivation": "specialization",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "1.0.0"
}
],
"element": [
{
"id": "IVL_PQ",
"path": "IVL_PQ",
"short": "Base for all types and resources",
"definition": "A dimensioned quantity expressing the result of a measurement act.",
"min": 1,
"max": "*",
"base": {
"path": "Base",
"min": 0,
"max": "*"
},
"constraint": [
{
"key": "ivl-pq-center",
"severity": "error",
"human": "Center cannot co-exist with low or high",
"expression": "center.empty() or (low.empty() and high.empty())"
}
],
"isModifier": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "IVL_PQ.nullFlavor",
"path": "IVL_PQ.nullFlavor",
"representation": [
"xmlAttr"
],
"label": "Exceptional Value Detail",
"definition": "If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.",
"min": 0,
"max": "1",
"base": {
"path": "ANY.nullFlavor",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code",
"profile": [
"http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
]
}
],
"binding": {
"strength": "required",
"valueSet": "http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor"
}
},
{
"id": "IVL_PQ.unit",
"path": "IVL_PQ.unit",
"representation": [
"xmlAttr"
],
"label": "Unit of Measure",
"definition": "The unit of measure specified in the Unified Code for Units of Measure (UCUM) [].",
"min": 0,
"max": "1",
"base": {
"path": "PQ.unit",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code",
"profile": [
"http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
]
}
],
"defaultValueCode": "1"
},
{
"id": "IVL_PQ.value",
"path": "IVL_PQ.value",
"representation": [
"xmlAttr"
],
"label": "Maginitude Value",
"definition": "The magnitude of the quantity measured in terms of the unit.",
"min": 0,
"max": "1",
"base": {
"path": "PQ.value",
"min": 0,
"max": "1"
},
"type": [
{
"code": "decimal",
"profile": [
"http://hl7.org/cda/stds/core/StructureDefinition/real-simple"
]
}
]
},
{
"id": "IVL_PQ.translation",
"path": "IVL_PQ.translation",
"label": "Translation",
"definition": "An alternative representation of the same physical quantity expressed in a different unit, of a different unit code system and possibly with a different value.",
"min": 0,
"max": "*",
"base": {
"path": "PQ.translation",
"min": 0,
"max": "*"
},
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/PQR"
}
]
},
{
"id": "IVL_PQ.operator",
"path": "IVL_PQ.operator",
"representation": [
"xmlAttr"
],
"definition": "A code specifying whether the set component is included (union) or excluded (set-difference) from the set, or other set operations with the current set component and the set as constructed from the representation stream up to the current point.",
"min": 0,
"max": "1",
"base": {
"path": "IVL_PQ.operator",
"min": 0,
"max": "1"
},
"type": [
{
"code": "code",
"profile": [
"http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
]
}
],
"defaultValueCode": "I",
"binding": {
"strength": "required",
"valueSet": "http://hl7.org/cda/stds/core/ValueSet/CDASetOperator"
}
},
{
"id": "IVL_PQ.low",
"path": "IVL_PQ.low",
"label": "Low Boundary",
"definition": "This is the low limit of the interval.",
"min": 0,
"max": "1",
"base": {
"path": "IVL_PQ.low",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/IVXB-PQ"
}
]
},
{
"id": "IVL_PQ.center",
"path": "IVL_PQ.center",
"label": "Central Value",
"definition": "The arithmetic mean of the interval (low plus high divided by 2). The purpose of distinguishing the center as a semantic property is for conversions of intervals from and to point values.",
"min": 0,
"max": "1",
"base": {
"path": "IVL_PQ.center",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/PQ"
}
]
},
{
"id": "IVL_PQ.width",
"path": "IVL_PQ.width",
"label": "Width",
"definition": "The difference between high and low boundary. The purpose of distinguishing a width property is to handle all cases of incomplete information symmetrically. In any interval representation only two of the three properties high, low, and width need to be stated and the third can be derived.",
"min": 0,
"max": "1",
"base": {
"path": "IVL_PQ.width",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/PQ"
}
]
},
{
"id": "IVL_PQ.high",
"path": "IVL_PQ.high",
"label": "High Boundary",
"definition": "This is the high limit of the interval.",
"min": 0,
"max": "1",
"base": {
"path": "IVL_PQ.high",
"min": 0,
"max": "1"
},
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/IVXB-PQ"
}
]
}
]
},
"differential": {
"element": [
{
"id": "IVL_PQ",
"path": "IVL_PQ",
"min": 1,
"max": "*",
"constraint": [
{
"key": "ivl-pq-center",
"severity": "error",
"human": "Center cannot co-exist with low or high",
"expression": "center.empty() or (low.empty() and high.empty())"
}
]
},
{
"id": "IVL_PQ.operator",
"path": "IVL_PQ.operator",
"representation": [
"xmlAttr"
],
"definition": "A code specifying whether the set component is included (union) or excluded (set-difference) from the set, or other set operations with the current set component and the set as constructed from the representation stream up to the current point.",
"min": 0,
"max": "1",
"type": [
{
"code": "code",
"profile": [
"http://hl7.org/cda/stds/core/StructureDefinition/cs-simple"
]
}
],
"defaultValueCode": "I",
"binding": {
"strength": "required",
"valueSet": "http://hl7.org/cda/stds/core/ValueSet/CDASetOperator"
}
},
{
"id": "IVL_PQ.low",
"path": "IVL_PQ.low",
"label": "Low Boundary",
"definition": "This is the low limit of the interval.",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/IVXB-PQ"
}
]
},
{
"id": "IVL_PQ.center",
"path": "IVL_PQ.center",
"label": "Central Value",
"definition": "The arithmetic mean of the interval (low plus high divided by 2). The purpose of distinguishing the center as a semantic property is for conversions of intervals from and to point values.",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/PQ"
}
]
},
{
"id": "IVL_PQ.width",
"path": "IVL_PQ.width",
"label": "Width",
"definition": "The difference between high and low boundary. The purpose of distinguishing a width property is to handle all cases of incomplete information symmetrically. In any interval representation only two of the three properties high, low, and width need to be stated and the third can be derived.",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/PQ"
}
]
},
{
"id": "IVL_PQ.high",
"path": "IVL_PQ.high",
"label": "High Boundary",
"definition": "This is the high limit of the interval.",
"min": 0,
"max": "1",
"type": [
{
"code": "http://hl7.org/cda/stds/core/StructureDefinition/IVXB-PQ"
}
]
}
]
}
}