## Union of https://nhicore.nhi.gov.tw/pas/StructureDefinition/Substance-twpas and https://nhicore.nhi.gov.tw/pas/StructureDefinition/Substance-twpas

This is the set of resources that conform to either of the profiles 放射治療總劑量-Substance TWPAS (https://nhicore.nhi.gov.tw/pas/StructureDefinition/Substance-twpas) and 放射/照光治療總劑量-Substance TWPAS (https://nhicore.nhi.gov.tw/pas/StructureDefinition/Substance-twpas). E.g. what you have to deal with if you get resources conforming to one of them

### Structure

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Substance |  | 0..* |  | A homogeneous material with a definite composition
meta | Σ | 1..1 | Meta | Metadata about the resource
extension |  | 0..* | Extension | Additional content defined by implementations
versionId | Σ | 0..1 | id | Version specific identifier
lastUpdated | Σ | 0..1 | instant | When the resource version last changed
source | Σ | 0..1 | uri | Identifies where the resource comes from
profile | Σ | 1..1 | canonical(StructureDefinition) | Profiles this resource claims to conform to
security | Σ | 0..* | Coding | Security Labels applied to this resource Binding: ?? (extensible): Security Labels from the Healthcare Privacy and Security Classification System.
tag | Σ | 0..* | Coding | Tags applied to this resource Binding: ?? (example): Codes that represent various types of tags, commonly workflow-related; e.g. "Needs review by Dr. Jones".
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: ?? (preferred): A human language.
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
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 | Unique identifier
status | ?!Σ | 0..1 | code | active | inactive | entered-in-error Binding: ?? (required): A code to indicate if the substance is actively used.
category | Σ | 0..* | CodeableConcept | What class/type of substance this is Binding: ?? (extensible): Category or classification of substance.
code | Σ | 1..1 | CodeableConcept | left: 放射治療項目。ICD-10-PCS。; right: 放射/照光治療項目。ICD-10-PCS。 Binding: ?? (preferred): 最新參考代碼清單請參考[此檔案]。
extension |  | 0..* | Extension | Additional content defined by implementations
coding | Σ | 1..1 | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
description | Σ | 0..1 | string | Textual description of the substance, comments
instance | Σ | 0..* | BackboneElement | If this describes a specific package/container of the substance
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
identifier | Σ | 0..1 | Identifier | Identifier of the package/container
expiry | Σ | 0..1 | dateTime | When no longer valid to use
quantity | Σ | 0..1 | ?? | Amount of substance in the package
ingredient | S Σ | 0..1 | BackboneElement | Composition information about the substance
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
quantity | Σ | 0..1 | Ratio | Optional amount (concentration)
extension |  | 0..* | Extension | Additional content defined by implementations
numerator | Σ | 1..1 | Quantity | Numerator value
extension |  | 0..* | Extension | Additional content defined by implementations
value | S Σ | 1..1 | decimal | left: 放射治療總劑量; right: 放射/照光治療總劑量
comparator | ?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: ?? (required): How the Quantity should be understood and represented.
unit | Σ | 0..1 | string | Unit representation
system | Σ | 1..1 | uri | left: 放射治療總劑量單位之代碼系統，固定為「http://unitsofmeasure.org」。; right: 放射/照光治療總劑量單位之代碼系統，固定為「http://unitsofmeasure.org」。
code | S Σ | 1..1 | code | left: 放射治療總劑量單位; right: 放射/照光治療總劑量單位 Binding: ?? (required): left: 放射治療總劑量單位的代碼範圍請參考[Common UCUM units]。; right: 放射/照光治療總劑量單位的代碼範圍請參考[Common UCUM units]。
denominator | Σ | 0..1 | Quantity | Denominator value
substance[x] | Σ | 1..1 |  | 因FHIR設計而需必填 Binding: ?? (preferred): 最新參考代碼清單請參考[此檔案]。
substanceCodeableConcept |  |  | CodeableConcept |
substanceReference |  |  | Reference(Substance) |
Documentation for this format