This page is part of the FHIR Specification (v1.4.0: STU 3 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions 
Logical Model V3 Data type RTO_PQ_PQ (Ratio)
{
"resourceType": "StructureDefinition",
"id": "RTO_PQ_PQ",
"extension": [
{
"url": "http://www.healthintersections.com.au/fhir/StructureDefinition/extension-namespace",
"valueUri": "urn:hl7-org:v3"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/RTO_PQ_PQ",
"name": "V3 Data type RTO_PQ_PQ (Ratio)",
"display": "V3 Data type RTO_PQ_PQ (Ratio)",
"status": "active",
"experimental": false,
"publisher": "HL7",
"description": "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 .",
"kind": "logical",
"abstract": false,
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/QTY",
"snapshot": {
"element": [
{
"path": "RTO_PQ_PQ",
"min": 1,
"max": "*",
"type": [
{
"code": "Element"
}
]
},
{
"path": "RTO_PQ_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",
"type": [
{
"code": "code"
}
],
"binding": {
"strength": "required",
"valueSetReference": {
"reference": "http://hl7.org/fhir/ValueSet/v3-NullFlavor"
}
}
},
{
"path": "RTO_PQ_PQ.numerator",
"label": "Numerator",
"definition": "The quantity that is being divided in the ratio. The default is the integer number 1 (one.)",
"min": 0,
"max": "1",
"type": [
{
"code": "PQ"
}
]
},
{
"path": "RTO_PQ_PQ.denominator",
"label": "Denominator",
"definition": "The quantity that devides the numerator in the ratio. The default is the integer number 1 (one.) The denominator must not be zero.",
"min": 0,
"max": "1",
"type": [
{
"code": "PQ"
}
]
}
]
},
"differential": {
"element": [
{
"path": "RTO_PQ_PQ",
"min": 1,
"max": "*",
"type": [
{
"code": "Element"
}
]
},
{
"path": "RTO_PQ_PQ.numerator",
"label": "Numerator",
"definition": "The quantity that is being divided in the ratio. The default is the integer number 1 (one.)",
"min": 0,
"max": "1",
"type": [
{
"code": "PQ"
}
]
},
{
"path": "RTO_PQ_PQ.denominator",
"label": "Denominator",
"definition": "The quantity that devides the numerator in the ratio. The default is the integer number 1 (one.) The denominator must not be zero.",
"min": 0,
"max": "1",
"type": [
{
"code": "PQ"
}
]
}
]
}
}
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.