Clinical Document Architecture with Australian Schema - Local Development build (v1.0.1) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Logical Model: RTO_PQ_PQ: Ratio (V3 Data Type)

Official URL: http://hl7.org/cda/stds/core/StructureDefinition/RTO-PQ-PQ Version: 1.0.1
Active as of 2025-10-10 Maturity Level: 1 Responsible: HL7 Computable Name: RTO_PQ_PQ

A quantity constructed as the quotient of a numerator quantity divided by a denominator quantity. Common factors in the numerator and denominator are not automatically cancelled out. The data type supports titers (e.g., "1:128") and other quantities produced by laboratories that truly represent ratios. Ratios are not simply "structured numerics", particularly blood pressure measurements (e.g. "120/60") are not ratios. In many cases the should be used instead of the .

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

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

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... @nullFlavor 0..1 cs Binding: CDANullFlavor (required)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
RTO_PQ_PQ.nullFlavor Base required CDANullFlavor 📦1.0.1 This IG

This structure is derived from QTY

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... @nullFlavor 0..1 cs Binding: CDANullFlavor (required)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
RTO_PQ_PQ.nullFlavor Base required CDANullFlavor 📦1.0.1 This IG

This structure is derived from QTY

Summary

Maturity: 1

Key Elements View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... @nullFlavor 0..1 cs Binding: CDANullFlavor (required)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
RTO_PQ_PQ.nullFlavor Base required CDANullFlavor 📦1.0.1 This IG

Differential View

This structure is derived from QTY

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. RTO_PQ_PQ 1..* QTY XML Namespace: urn:hl7-org:v3
Base for all types and resources

Elements defined in Ancestors:@nullFlavor
Logical Container: ClinicalDocument (CDA Class)
... @nullFlavor 0..1 cs Binding: CDANullFlavor (required)
... numerator 0..1 PQ
... denominator 0..1 PQ

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
RTO_PQ_PQ.nullFlavor Base required CDANullFlavor 📦1.0.1 This IG

This structure is derived from QTY

Summary

Maturity: 1

 

Other representations of profile: CSV, Excel